51st week of 2010 patent applcation highlights part 9 |
Patent application number | Title | Published |
20100319897 | High-performance heat dissipation substrate with monoparticle layer - A high-performance heat dissipation substrate with monoparticle layer, including a surface plate having a first face connected to a heat source and a second face on which a heat dissipation substrate is disposed. The heat dissipation substrate is connectable to an external heat dissipation device. A thermal particle layer is disposed between the surface plate and the heat dissipation substrate in the form of a monoparticle layer. The thermal particle layer includes multiple thermal particles (ceramic materials as diamond, SiC, AIN, Single Crystal Silicon) arranged immediately adjacent to each other and partially inlaid in the surface plate and the heat dissipation substrate. The heat of the heat source can be transferred from the surface plate through the thermal particle layer to the heat dissipation substrate and dissipated outward. | 2010-12-23 |
20100319898 | THERMAL INTERCONNECT AND INTEGRATED INTERFACE SYSTEMS, METHODS OF PRODUCTION AND USES THEREOF - Heat spreader assemblies are disclosed that include a heat spreader component, at least one coupling layer, and at least one thermally conductive layer, wherein the heat spreader component is coupled to the at least one thermally conductive layer through the at least one coupling layer. In some instances, heat spreader assemblies include an aluminum-based heat spreader component, at least one coupling layer, wherein the coupling layer comprises zinc, a zinc-based material, tin, a tin-based material or a combination thereof, and at least one thermally conductive layer comprising nickel, wherein the heat spreader component is coupled to the at least one thermally conductive layer through the at least one coupling layer. Methods of forming heat spreader assemblies are also disclosed that include providing a heat spreader component, wherein the heat spreader component comprises a top surface, a bottom surface and at least one heat spreader material; providing at least one coupling material, wherein the coupling material is directly deposited onto the bottom surface of the heat spreader component; and depositing, applying or coating at least one thermally conductive coating, film or layer on at least part of the bottom surface of the heat spreader component. In several embodiments, heat spreader component comprises a native oxide layer, an oxide barrier layer or a combination thereof that is removed before application of the at least one coupling material. | 2010-12-23 |
20100319899 | HEAT SINK AND METHOD OF MANUFACTURE THEREOF - In a first process of this method of manufacturing a heat sink, into a groove, formed in a base and both of whose side surfaces are provided with projections or concave portions and whose upper portion is open, from the groove open portion, there is fitted a pipe that has a diameter smaller than the gap between the edge portions of the open portion of the groove. Next, the pipe is pressed from above the open portion of the groove and the upper portion of the pipe is deformed so that it follows the plane of the open portion of the groove, and moreover both side portions of the pipe are deformed so that they follow along the inner surfaces of both side portions of the groove. By this second process, both side portions of the pipe are engaged with the projections or concave portions. | 2010-12-23 |
20100319900 | COMPOSITE MATERIAL HAVING HIGH THERMAL CONDUCTIVITY ND PROCESS OF FABRICATING SAME - The invention relates to high thermal conductivity (TC) materials, in particular, to copper-diamond composite materials, which can be used as heat exchangers, heat sinks, heat spreaders for electronic and other devices and a method of production thereof. A high TC diamond-metal composite according to the invention has a TC above 500 W/(m*K) and comprises coated diamond particles in a metal or metal alloy matrix having a TC of not less than 300 W/(m*K), wherein the particles are coated with a single-layered continuous high surface area coating comprising a metal and/or carbide of a carbide-forming element selected from IV-VI Groups of the Periodic Table, the coating having a thickness of less than 500 nm and a certain surface texture to provide high TC of composite. | 2010-12-23 |
20100319901 | COMPACT GRILLE CABINET FOR ROOM AIR-CONDITIONERS - This invention relates to an improved compact grille cabinet for room air conditioners operable in normal and extreme climatic conditions with optimized efficiency mode comprising of: an insulated box chiller (B) with louvers, the insulated box being mounted on a window air conditioner; a hinge (C) allowing partial opening of the cabinet at angles up to 180° ( | 2010-12-23 |
20100319902 | AUXILIARY APPARATUS FOR VEHICLE WATER TANK - An auxiliary apparatus for a vehicle water tank is applicable to a cooling system. The auxiliary apparatus includes a water supply apparatus, a pressure relief apparatus, a state sensor, and a controller. The water supply apparatus has a feed-water pump and an auxiliary water tank. The cooling system and the auxiliary water tank respectively accommodate a cooling fluid. The pressure relief apparatus detects a pressure in the cooling system, and guides the cooling fluid in the cooling system to the auxiliary water tank when the pressure exceeds a predetermined pressure value. The state sensor detects a storage state of the cooling fluid in the cooling system. The controller stops the feed-water pump according to the storage state sensed by the state sensor, or starts the feed-water pump to guide the cooling fluid in the auxiliary water tank to the cooling system. | 2010-12-23 |
20100319903 | TEMPERATURE CONTROL APPARATUS OF WORKING MACHINE - Provided is a temperature control apparatus of a working machine that is inexpensive, energy-saving and capable of eliminating the temperature difference between a temperature in a room in which the working machine is installed and a temperature of a working area. | 2010-12-23 |
20100319904 | Down hole delivery system - An improved delivery system for pumping fluid from a pay zone to the surface of a well in which the well casing is fitted with a pump lodged in the pay zone of the well, a drive head at the surface of the well and a rod string connecting the two, wherein a transmission is interposed between the pump and drive head on the rod string and fluid pumped from the pay zone passes through conduit, extending longitudinally in isolation through the transmission. | 2010-12-23 |
20100319905 | SYSTEM AND METHOD FOR CONTROLLING LIQUID REMOVAL OPERATIONS IN A GAS-PRODUCING WELL - A system for operating downhole equipment in a well includes a drive shaft extending from a surface of the well to a downhole location. A motor is positioned at the surface and is operably connected to the drive shaft to selectively rotate the drive shaft. A lift system is positioned at the surface and is operably connected to the drive shaft to axially lift and lower the drive shaft. | 2010-12-23 |
20100319906 | Shear Seal Blowout Preventer - A shear/seal ram provides a knife edge at the shearing edge and the knife edge is inclined to minimize the cutting force required and to leave a clean cut edge. The knife edge is presented in an opening of the ram, thus the opening is positioned at the axis of the BOP, and consequently the coiled tubing, before the coiled tubing is run through the BOP. A biasing means, such as for example a Bellville spring, forces a sealing sleeve against the underside of the ram to prevent leakage of pressure from below the BOP. Similarly, a plurality of biasing means, referred to herein as “skates”, forces the ram down against the sealing sleeve to seal pressure from above the BOP. | 2010-12-23 |
20100319907 | Drilling Tool with Feed Control - The present invention relates to a drilling tool ( | 2010-12-23 |
20100319908 | FLOW CONTROL SYSTEM HAVING A DOWNHOLE CHECK VALVE SELECTIVELY OPERABLE FROM A SURFACE OF A WELL - A flow control system includes a pump positioned in a well to remove liquid from the well. A check valve is positioned in the well and includes an open position and a closed position. The check valve in the open position allows gas from a producing formation of the well to flow past the check valve, while the check valve in the closed position substantially reduces gas flow at the pump from the producing formation. A compressed gas source is in fluid communication with the well to provide compressed gas to move the check valve to the closed position. | 2010-12-23 |
20100319909 | Enhanced Shale Oil Production By In Situ Heating Using Hydraulically Fractured Producing Wells - A method for enhanced production of hydrocarbon fluids from an organic-rich rock formation such as an oil shale formation is provided. The method generally includes completing at least one heater well in the organic-rich rock formation, and also completing a production well in the organic-rich rock formation. The method also includes the steps of hydraulically fracturing the organic-rich rock formation from the production well such that one or more artificial fractures are formed, and heating the organic-rich rock formation from the at least one heater well, thereby pyrolyzing at least a portion of the organic-rich rock into hydrocarbon fluids Pyrolyzing the organic-rich rock formation creates thermal fractures in the formation due to thermal stresses created by heating. The thermal fractures intersect the artificial fractures. As an additional step, hydrocarbon fluids may be produced from the production well. Preferably, the organic-rich rock formation is an oil shale formation. | 2010-12-23 |
20100319910 | Drum Load Monitoring - An assembly for monitoring load on a drum during an operation in a well with a well access line deployed from the drum. The assembly may include multiple line detection mechanisms for acquiring real-time information relative to dynamic characteristics of the lone over the course of the operation. The assembly also includes a processor for computing the real-time information in light of pre-stored information relative to physical characteristics of the line and the drum. As a result, real-time monitoring of a load on the drum may be achieved. Thus, the operation may be adjusted in real-time as necessary to avoid over-loading of the drum. Additionally, a drum load history may be recorded so as to better account for the true condition of the drum following successive operations. | 2010-12-23 |
20100319911 | System, Method and Apparatus for Downhole Orientation Probe Sensor - A submersible pump assembly may be radially oriented for pumping well fluid in a deviated or horizontal well. The submersible pump assembly has an instrument housing having a longitudinal axis and incorporated onto the pump assembly. An electrical contact is mounted within the housing and an electrical contact probe, moveable relative to the housing and biased upwards toward an upper side of the housing when the pump assembly is inclined, is provided. The housing and the electrical contact are rotatable about the longitudinal axis relative to the electrical contact probe, such that an electrical circuit is completed when the electrical contact is rotated into engagement with the electrical contact probe, generating a signal from the completed electrical circuit. The electrical contact is at a known circumferential position relative to the fixed reference point, which may be the intake port of the pump. | 2010-12-23 |
20100319912 | FOCUSED SAMPLING OF FORMATION FLUIDS - An apparatus for obtaining a fluid at a position within a wellbore that penetrates a subterranean formation includes a body adapted to be disposed in the wellbore on a conveyance equipped with one or more expandable packers providing a sample region disposed between an upper cleanup zone and a lower cleanup zone when expanded into abutting contact with the wellbore wall; an upper cleanup port provided at the upper cleanup zone; a lower cleanup port provided at the lower cleanup zone; at least one fluid cleanup flowline in fluid connection with the upper and lower cleanup ports; a sampling inlet provided at the sampling region; and a sampling flowline in fluid connection with the sampling inlet for drawing fluid from the sampling region. | 2010-12-23 |
20100319913 | BIOFILM REMEDIATION OF FRACTURE FLUID - A method of in situ treatment of fracture fluid that is contaminated with a heavy metal may include passing a flow of contaminated fracture fluid through a reactor vessel. The reactor vessel may contain a plurality of biofilm retaining structures. Each of the structures may at least be partially coated with a biofilm. Additionally, the biofilm may include a plurality of bacteria retained in a matrix and the matrix may include DNA, protein and carbohydrates produced by the bacteria. | 2010-12-23 |
20100319914 | WELL SCREEN - A well screen ( | 2010-12-23 |
20100319915 | APPLICATION OF DEGRADABLE FIBERS IN INVERT EMULSION FLUIDS FOR FLUID LOSS CONTROL - A method of treating a subterranean formation including emplacing in a wellbore a fluid, comprising an oleaginous continuous phase, a non-oleaginous discontinuous phase, an emulsifier, at least one degradable material, and at least one bridging material, and contacting the formation with the fluid. A method and apparatus related to an invert emulsion fluid loss pill including an oleaginous continuous phase, a non-oleaginous discontinuous phase, an emulsifier, at least one degradable material, wherein the degradable material hydrolyzes to release an organic acid, and at least one bridging material. | 2010-12-23 |
20100319916 | THERMOSET NANOCOMPOSITE PARTICLES, PROCESSING FOR THEIR PRODUCTION, AND THEIR USE IN OIL AND NATURAL GAS DRILLING APPLICATIONS - Thermoset polymer particles are used in many applications requiring lightweight particles possessing high stiffness, strength, temperature resistance, and/or resistance to aggressive environments. The present invention relates to the use of two different methods, either each by itself or in combination, to enhance the stiffness, strength, maximum possible use temperature, and environmental resistance of such particles. One method is the application of post-polymerization process steps (and especially heat treatment) to advance the curing reaction and to thus obtain a more densely crosslinked polymer network. In general, its main benefits are the enhancement of the maximum possible use temperature and the environmental resistance. The other method is the incorporation of nanofillers, resulting in a heterogeneous “nanocomposite” morphology. In general, its main benefits are increased stiffness and strength. Nanofiller incorporation and post-polymerization heat treatment can also be combined to obtain the benefits of both methods simultaneously. The present invention relates to the development of thermoset nanocomposite particles. It also relates to the optional further improvement of the heat resistance and environmental resistance of said particles via post-polymerization heat treatment. Furthermore, it also relates to processes for the manufacture of said particles. Finally, it also relates to the use of said particles in the construction, drilling, completion and/or fracture stimulation of oil and natural gas wells; for example, as a proppant partial monolayer, a proppant pack, an integral component of a gravel pack completion, a ball bearing, a solid lubricant, a drilling mud constituent, and/or a cement additive. | 2010-12-23 |
20100319917 | Methods of Using Particulates in Subterranean Operations - Among the methods described herein are methods using low-specific gravity particulates wherein the particulates comprise silica and an aluminum oxide in an amount of about 0.1% to about 25% by weight and having at least one void, a specific gravity of less than about 2.2, a particle size of 8 U.S. Mesh or smaller, and a substantially spherical shape. | 2010-12-23 |
20100319918 | CEMENT ADDITIVE FOR THE ENHANCED TREATMENT OF OIL AND GAS WELLS AND RELATED METHODS OF USE - Cement mixtures and methods are disclosed for enhancing fluid loss prevention in oil and gas wells comprising an electrolyte, a polymer and a cross linking agent. | 2010-12-23 |
20100319919 | APPLICATION OF DEGRADABLE FIBERS IN INVERT EMULSION FLUIDS FOR KILL PILLS - A method of treating a subterranean formation includes pumping into a cased, perforated wellbore that intersects the formation an invert emulsion kill fluid, the invert emulsion kill fluid comprising: an oleaginous continuous phase; a non-oleaginous discontinuous phase; an emulsifier; at least one degradable material; and at least one bridging material; contacting the formation with the kill fluid; and allowing the degradable material to at least partially degrade. | 2010-12-23 |
20100319920 | METHODS FOR IMPROVING THE PRODUCTIVITY OF OIL PRODUCING WELLS - Methods for treating formations bearing brine and at least one of black oil or volatile oil using a composition containing a nonionic polymer and solvent. The solvent at least one of solubilizes or displaces at least one of brine or oil in the formation. Methods for making a composition for treating a formation bearing brine an at least one of black oil or volatile oil are also disclosed. | 2010-12-23 |
20100319921 | WELLBORE FLUID MIXING SYSTEM - A system for mixing fluids for oilfield applications, the system including a first storage vessel ( | 2010-12-23 |
20100319922 | Methods of Fracturing Subterranean Formations Using Sulfonated Gelling Agent Polymers - Methods of forming one or more fractures in a subterranean formation penetrated by a well bore including the steps of providing a high ionic strength treating fluid that comprises water and one or more sulfonated gelling agent polymers wherein the high ionic strength treating fluid comprises one or more water soluble salts in a concentration of greater than about 8% by weight of the treating fluid, and introducing the treating fluid into the subterranean formation at a rate and pressure sufficient to create or enhance one or more fractures therein. | 2010-12-23 |
20100319923 | MOBILE SYSTEMS AND METHODS OF SUFFICIENTLY TREATING WATER SO THAT THE TREATED WATER MAY BE UTILIZED IN WELL-TREATMENT OPERATIONS - A system is provided that includes: (a) a mobile platform; (b) an input pump operatively connected to be capable of pumping a treatment stream through the system; (c) a centrifugal separator operatively connected downstream of the input pump to centrifugally treat the treatment stream; (d) a borate filter operatively connected downstream of the centrifugal separator to filter the treatment stream capable of removing at least some of a borate when the treatment stream is at a pH of 8 or above; and (e) a chemical-additive subsystem operatively connected to be capable of: (i) selectively adding one or more chemical agents to the treatment stream upstream of the centrifugal separator, wherein the chemical agents can be selected to be capable of precipitating dissolved ions selected from the group consisting of: sulfate, calcium, strontium, or barium, magnesium, iron; and (ii) selectively adding a chemical agent to the treatment stream upstream of the borate filter to increase the pH of the treatment stream to 8 or above. | 2010-12-23 |
20100319924 | COMPLIANT DART-STYLE REVERSE-FLOW CHECK VALVE - An apparatus usable with a well includes a gas lift valve having a check valve arrangement located between an annulus and a passageway of a tubing. The check valve arrangement is adapted to selectively allow fluid flow from the check valve arrangement from an inlet side of the check valve arrangement to an outlet side of the check valve arrangement, and is biased to prevent a leakage flow through the check valve arrangement from the outlet side to the inlet side. The check valve arrangement is defined by a valve element movable into and out of engagement with a valve seat wherein one of the valve element and the valve seat has a first sealing structure engageable with a second sealing structure on the other of the valve element and the valve seat. At least one of the first and second sealing surfaces include at least one pair of sealing members. | 2010-12-23 |
20100319925 | RISER PIPE SECTION WITH FLANGED AUXILIARY LINES AND BAYONET CONNECTIONS - A riser pipe section ( | 2010-12-23 |
20100319926 | Gas Boost Circulation System - A submersible well pump assembly in a wellbore; the pump assembly includes a liquid lift pump and a booster pump for pumping a two-phase mixture of gas and liquid. A shroud with an opening at its upper end partially encloses the pump assembly. An annulus is formed between the shroud and the wellbore inner circumference. Two phase fluid from the booster pump exits the shroud through a port and flows up the annulus to the shroud opening. Liquid in the two-phase flow separates from the gas and flows into the shroud opening and onto the liquid lift pump. The gas continues to flow up the wellbore, past the shroud opening, to the wellbore entrance. | 2010-12-23 |
20100319927 | Downhole Tool with Hydraulic Closure Seat - A downhole tool | 2010-12-23 |
20100319928 | THROUGH TUBING INTELLIGENT COMPLETION AND METHOD - A through tubing intelligent completion including a completion string; one or more isolation seals on the completion string and having an undeployed set of dimensions smaller than one or more restrictions in a tubing string through which the completion string is deployed; and one or more interventionlessly actuable flow control devices in the completion string having a set of dimensions smaller than one or more restrictions in a tubing string through which the completion string is deployed and method. | 2010-12-23 |
20100319929 | Dual Anchoring Tubular Back-Off Tool - A back-off tool for use in breaking a joint of a tubular disposed in a well. The tool is dual anchoring in nature such that breaking of the joint may be achieved with a degree of precision heretofore unavailable. Additionally, the dual anchoring nature of the tool at both sides of the joint allows for power requirements to be met through use of a dowhole power source incorporated into the tool. As a result, the use of heavier power carrying cables and equipment may be avoided as well as explosives or similarly hazardous and/or imprecise measures. | 2010-12-23 |
20100319930 | Time-Controlled Release Device for Wireline Conveyed Tools - This invention relates to a time controlled release device for down line tools in oil or gas wells. Tools that are lowered into a well for various purposes occasionally become stuck in the well and are not able to be withdrawn using jars and other dislodging techniques. In such a situation it is desirable to provide a controlled release device that will disengage the tool from the line only after a given time period. This allows the operator to continue to exert upward force on the line for a given time period prior to the release device being actuated. | 2010-12-23 |
20100319931 | SYSTEM AND METHOD FOR CONNECTING COMMUNICATION LINES IN A WELL ENVIRONMENT - A technique enables the efficient connection of communication lines in a well application by substantially reducing online rig assembly time. The technique reduces online time of the rig by sealably fastening a first connector of a downhole connection assembly to a segment of a communication line during offline assembly time to substantially reduce the online time requirements. The first connector is later connected to a corresponding second connector while the rig is online to complete the downhole connection assembly that joins communication line segments. | 2010-12-23 |
20100319932 | LARGE DIAMETER TUBULAR LIFTING APPARATUSES AND METHODS - A method to add a joint of pipe to a conductor string includes securing the conductor string with a spider, grasping an upper end of the joint of pipe with a segmented-ring elevator, engaging a plurality of slips of the elevator with an outer profile of the joint of pipe, raising the grasped joint of pipe from non-vertical to vertical, positioning the vertical joint of pipe atop the secured conductor string, attaching the joint of pipe to the conductor string, releasing the conductor string from the spider, and retaining the joint of pipe and the conductor string with the segmented-ring elevator. | 2010-12-23 |
20100319933 | System and method of displacing fluids in an annulus - The method of displacing fluids in the annulus between pressurized casing strings inside an active oil or gas well by providing a controlled turndown insert and guides then inserting and retrieving a flexible hose without it folding or buckling while being pushed or pulled through a wellhead system orifice with relatively sharp edges at the annulus opening where the hose must make a 90 degree turn from horizontal to vertical within a short radius without cutting, crimping or tearing the hose then seating and holding the hose while fluids are injected, all the while providing protection against well blow out or other pressure problems. | 2010-12-23 |
20100319934 | DOWNHOLE TOOLS AND METHODS OF SETTING IN A WELLBORE - A downhole tool disposed in a drillstring includes a bypass valve unit including at least one bypass port, wherein the bypass port is configured to control fluid flow from a central bore of the drillstring to a wellbore annulus, and an activation sub having a frangible obstruction disposed in a central bore thereof and configured to prevent fluid flow to an anchor downhole during a circulation mode, wherein the frangible obstruction is configured to break at a specified fluid pressure in the central bore to allow fluid communication to below. | 2010-12-23 |
20100319935 | METHOD AND DEVICE FOR A RUNNING TOOL - A method and device for drilling or cleaning in underground borehole including a drilling tool, a drill pipe with two pipe conduits extending up the surface and further including an arrangement for providing one drilling fluid for circulation with a drill string and a second arrangement for providing a second fluid in an annulus formed between the drill string and the wall of a wellbore. | 2010-12-23 |
20100319936 | METHOD FOR EFFICIENT DEPLOYMENT OF INTELLIGENT COMPLETIONS - A technique enables efficient deployment of instrumentation gauges in a wellbore. The technique comprises preparing offline a plurality of assemblies having a combined packer and gauge mandrel with an associated gauge. Each assembly is combined with a segment or length of instrumentation cable that is fully spliced with the gauge during offline assembly time. Various splice halves also can be assembled during offline assembly time. | 2010-12-23 |
20100319937 | SYSTEM AND METHOD FOR SUPPRESSING FIRES - A fire suppression apparatus includes a canister containing a non-azide solid propellant chemical that generates an oxygen-displacing gas mixture when ignited; a pyrotechnic device associated with the canister for initiating ignition of the solid propellant chemical to generate the oxygen-displacing gas mixture; and at least one filter associated with the canister for filtering out contents of the oxygen-displacing gas mixture to result in a clean agent fire suppressant deliverable into a space. The fire suppression apparatus is preferably configured for use in fire suppression systems for normally occupied spaces. | 2010-12-23 |
20100319938 | Water based fire extinguishers - The instant invention relates to a super absorbent polymeric material which when added to water enhances the fire extinguishing properties of the water. In particular, a pre-measured quantity of the polymeric material is added to a conventional water based canister capable of holding 2.5 gallons of pressurized water. The aqueous solution provides enhanced Class A & B fire extinguishing properties and is capable of long term storage. | 2010-12-23 |
20100319939 | ACTUATE DEVICE FOR FIRE EXTINGUISHER - Provided is an apparatus for operating a fire extinguisher, and more particularly, to an apparatus for operating a fire extinguisher, which has a very simple configuration with a compressed sealing effect and can spray a great amount of fire suppressant with exact and quick operation. | 2010-12-23 |
20100319940 | METHOD FOR REHABILITATION OF A BALLAST BED OF A TRACK - For the purpose of rehabilitation, a ballast bed of a track is taken up in the form of an upper bed layer by a first clearing device and cleaned. The bulk material accruing in the process is discharged in front of the first clearing device—with regard to the working direction—laterally upon the ballast bed in a bed region. The latter can only be covered by the second clearing device which is configured to be of greater width—with regard to a transverse direction of the track—than the first clearing device. Thus, it is possible to intermediately store bulk material, accruing in a front end region of a machine, on the ballast bed for later use. | 2010-12-23 |
20100319941 | Trenching Device And System - A device for trenching and a system of controlling trenching at a constant depth and at a speed of more than 12 miles per hour. | 2010-12-23 |
20100319942 | TURF LEVELING DEVICE - A turf leveling device includes a metering blade together with first and second horizontal and parallel main blades separated by first and second open distances. The blade are supported by a frame with spaced frame arms adapted to provide three point hitch attachment points. Skid plates mounted on left and right sides of the frame prevent the metering blade from scrapping or cutting elevated areas of the turf surface. The metering blade and the first and second main blades with deflectors effectively redistribute and level the gathered material. A vertically adjustable verticutting knife roller having keyed knife discs extending through slots in a grating insert is preferably disposed in the first open distance. | 2010-12-23 |
20100319943 | GARDEN TOOL - A hand held tool for gardens, landscapes and the like; comprising a handle, and a tool head. The tool head is formed from a flat blade that has tapers and is bent in substantially a “J” shape that is beveled along a portion of its edges. The open end of the “J” has a beveled tip, preferably containing a center notch. The bent, closed portion of the “J” shape is beveled at least 50% and forms a heel. The short leg of the “J” forms a flange, which is preferably not beveled and provides an area for attaching the tool head to the handle, preferably via a tang. The blade width is generally four or more times wider than the thickness of the blade material. | 2010-12-23 |
20100319944 | ELECTRIC POWER TOOL - An electric power tool has an electric drive motor whose speed is adjusted by means of an adjusting device. The adjusting device includes an adjusting element movably supported on the housing of the power tool. The adjusting element is associated with a strain measuring device that produces a measurement signal that is used to adjust the drive motor in response to a movement of the adjusting element. | 2010-12-23 |
20100319945 | OUTPUT MODE SWITCHING APPARATUS - An output mode switching apparatus including a power unit, a hammering unit, an output shaft, a housing, and a shifting member is provided. The hammering unit includes a gasket cup, a switching ring, a spring member, a hammering seat, and a main shaft. When the power unit is not in operation, the switching ring is restricted so as to be positioned against and secured to the gasket cup. When the mains shaft is driven by the power unit to rotate, the hammering seat is carried to rotate and is applied with a restriction for restricting the hammering seat from axial movement, thus configuring an output mode of electric drill. When the shifting member is turned, the restriction applied to the hammering seat is released. The hammering blocks repetitively hammers the protrusion blocks and axially returns back to the original position, thus configuring an impact output mode. | 2010-12-23 |
20100319946 | TRANSMISSION DEVICE - The invention relates to a gearbox device, in particular, for a hammer drill or chisel, with a torque transmission mechanism, which has a first torque transmitting region for transmission of a torque to a first component and at least one second torque transmitting region for transmitting a torque to a second component. According to the invention, the first torque transmitting region and the second torque transmitting region at least partly have a corresponding partial contour for transmitting the torques. | 2010-12-23 |
20100319947 | Electric Tool - The present invention relates to a power tool comprises an adjusting mechanism, the adjusting mechanism comprising a station element defining at least a first engaged member, and an adjusting member rotated about a axis and driving the first engaged member to move elastically along the axis, wherein a frequency increase mechanism is disposed between the adjusting member and the station element, the frequency increase mechanism coupled to the first engage member, the frequency of the elastic moving of the first engage member increases when the adjusting member rotates about the axis. Because the adjusting mechanism can increase the sound frequency, so it can make precision and dense sound and remind of the operator when the adjusting member rotated. | 2010-12-23 |
20100319948 | Avionics Chassis - An avionics chassis comprises a composite housing, a radio wave shield, and a lightning strike conductive path, wherein the radio wave shield attenuates electromagnetic interference entering and leaving the housing, and the lightning strike conductive path directs the current from a lightning strike away from an interior of the housing. | 2010-12-23 |
20100319949 | ELECTRICAL CONNECTION OF A SEALED ELECTRICAL MACHINE AND METHOD FOR COOLING AN ELECTRICAL CONNECTION OF A SEALED ELECTRICAL MACHINE - The electrical connection of a sealed electrical machine is provided and includes a casing containing lead conductors each connected to a bushing via an electrical connector. The casing has at least an inlet and an outlet for a cooling fluid. The electrical connector includes at least a permeable element defining a chamber such that during operation the cooling fluid, passing through the chamber and the permeable element, cools the permeable element. A method is also provided for cooling an electrical connection. | 2010-12-23 |
20100319950 | ELECTRONIC DEVICE ENCLOSURE - An electronic device enclosure includes a fixing frame, a chassis, and two panels. The chassis and the panels are correspondingly mounted to different sides of the fixing frame. The fixing frame is sealed by the chassis and the panels. A plurality of rubber gaskets is correspondingly mounted between the fixing frame and each of the panels and the chassis, to prevent moisture and dust from entering. | 2010-12-23 |
20100319951 | Partitioned electrical junction box - A partitioned electrical junction box includes at least three partitioned junction box main bodies slidingly joined together to form a main cover, a lower cover and upper cover fitted into the main cover. The lower cover is fitted into a recess groove of the main cover, and the upper cover is fitted into an outside of the main cover. The three partitioned junction box main bodies respectively receive different functional components. First fitting parts are adjacently provided on any two of the partitioned junction box main bodies, and a first bracket is slidingly fitted into the first fitting parts simultaneously to join the two partitioned junction box main bodies. | 2010-12-23 |
20100319952 | APPARATUS FOR AN ELECTRICAL EQUIPMENT ENCLOSURE WITH TUBULAR WEATHERPROOFING OF ELECTRICAL CONNECTIONS - An apparatus for an electrical equipment enclosure with tubular weatherproofing of electrical connections is disclosed. In one embodiment of the invention, one or more weatherproofing tubes attached to the lid incorporating one or more conduits are configured to serve as passageways for one or more electrical lines which need to stay weatherproof, watertight, and/or splash-proof from external elements. Furthermore, in one embodiment of the invention, one or more clusters of electrical connecters inside the electrical equipment enclosure receive a portion of the one or more electrical lines passing through the one or more conduits and the one or more weatherproofing tubes. The apparatus as embodied by the present invention provides a reliable, durable and cost-effective weatherproof electrical equipment enclosure design. | 2010-12-23 |
20100319953 | Quick Change Lamp Ballast Assembly - Method, apparatus and systems for a quick change lamp ballast assembly for newly manufactured lamp fixtures having the quick change ballast or a retrofit for an existing lamp fixture. The quick change ballast assembly includes a ballast mounting fixture | 2010-12-23 |
20100319954 | Angled Stabs For A Busway Plug In Unit - A busway system includes a plurality of busbars arranged in a flat stacked configuration. The system further includes at least one uninsulated stab having a base in direct contact with one of the busbars at a first length portion of the busbars. The stab also has a tip extending away from the base and angled at the length of the busbars such that the tip is positioned at least in part at a second length portion of the busbars. The stab is insulated from other stabs via one or more of a MYLAR® sheet and a wall of a plug-in opening base. | 2010-12-23 |
20100319955 | High Voltage Device - The invention relates to a high voltage device for providing electrical insulation of a conductor extending through the device. The device includes a hollow insulator; a conductor extending through the hollow insulator; a field gradient decreasing arrangement including a condenser core and a voltage grading shield. The condenser core and the voltage grading shield are arranged around the conductor inside the hollow insulator in a manner so that the voltage grading shield is arranged around at least part of the condenser core. | 2010-12-23 |
20100319956 | HYBRID CABLE FOR CONVEYING DATA AND POWER - Hybrid cables for conveying data and conducting operating power to electrically powered devices and a vehicle utilizing such cables are disclosed. | 2010-12-23 |
20100319957 | RESIN COMPOSITION AND HIGH-FREQUENCY CO-AXIAL CABLE USING SAME - There is provided a resin composition made of a mixture of a crosslinked polyethylene and a non-crosslinked polyethylene, and having a density of 0.960 g/cm | 2010-12-23 |
20100319958 | INSULATION OF BUSBARS USING INSULATING MEMBERS HAVING CORRUGATED SECTIONS - Busbars of a busway system are insulated so as to minimize or eliminate air gaps between busbars. In an embodiment, an insulating sheath is provided with corrugations in regions corresponding to busbar bends. The corrugations allow the sheath to follow the busbar bends without the need to cut or interrupt the sheath. Busbars may therefore be fully insulated without the need for further insulating materials (e.g., tape). Good thermal contact between busbars throughout their length is achieved, improving heat dissipation and efficiency. | 2010-12-23 |
20100319959 | Low Dielectric Loss Power Cable Sheaths Comprising High Pressure Polyolefins Free of Silane Functionality - Power cables that comprise a sheath layer, e.g., an insulation layer, are produced from a mixture of a high pressure polyolefin free of silane functionality, e.g., high pressure low density polyethylene, and a polyether polyol of which at least 50 percent of its molecules comprise no more than a single hydroxyl functionality. Preferably, the power cable is a medium or high voltage power cable, and the polyolefin is crosslinked as the sheath layer is fabricated and/or subsequent to the fabrication of the sheath layer. | 2010-12-23 |
20100319960 | HALOGEN-FREE FLAME RETARDANT FORMULATIONS - The present invention is a highly mineral-filled halogen-free, flame-retardant composition made from or containing a mineral filler, an olefin multi-block interpolymer, and a polar-monomer-based compatibilizer. The invented system has improved elongation at break, achieves a highly flexible, soft compound at high (e.g. >40 weight percent) filler addition, and achieves and low residual deformation when subjected to the hot pressure test. The invention also includes cables and extruded articles prepared from the composition. | 2010-12-23 |
20100319961 | INSULATED WIRE - There is provided an insulated wire equipped with an insulation film made of polymer alloy, the polymer alloy comprising an amorphous thermosetting resin and an amorphous thermoplastic resin, in which: the insulation film has a sea-island structure; the amorphous thermosetting resin is a sea component of the sea-island structure; and the amorphous thermoplastic resin is an island component of the sea-island structure. | 2010-12-23 |
20100319962 | SELF-ALIGNED NANO-SCALE DEVICE WITH PARALLEL PLATE ELECTRODES - A contiguous deep trench includes a first trench portion having a constant width between a pair of first parallel sidewalls, second and third trench portions each having a greater width than the first trench portion and laterally connected to the first trench portion. A non-conformal deposition process is employed to form a conductive layer that has a tapered geometry within the contiguous deep trench portion such that the conductive layer is not present on bottom surfaces of the contiguous deep trench. A gap fill layer is formed to plug the space in the first trench portion. The conductive layer is patterned into two conductive plates each having a tapered vertical portion within the first trench portion. After removing remaining portions of the gap fill layer, a device is formed that has a small separation distance between the tapered vertical portions of the conductive plates. | 2010-12-23 |
20100319963 | TERMINATION TOOL WITH CORRESPONDING MALE AND FEMALE CONNECTORS - A termination tool for terminating multiple wires to a two part electrical connector assembly composed of a wire arrangement manifold and a jack housing is provided by the present disclosure. The termination tool includes a main tool body having a termination housing provided thereon including a first cavity, a second cavity and a passage extending between the first and second cavities. The first cavity has an open side to receive and is shaped to removably retain a wire arrangement manifold, the second cavity having an open side to receive and being shaped to removably retain a jack housing, and the passage being sized to allow, in use, the wire arrangement manifold to pass therethrough from the first cavity to the second cavity and having cutting means provided on opposing sides of its end proximate to the first cavity. | 2010-12-23 |
20100319964 | CAST INSULATION RESIN FOR ELECTRIC APPARATUS AND HIGH VOLTAGE ELECTRIC APPARATUS USING THE SAME - A cast insulation resin for an electric apparatus having an improved fracture toughness is provided. The cast insulation resin for an electric apparatus is a cast insulation resin used in an electric apparatus, comprising at least either a polar fine elastomer particle or a liquid elastomer having a polar molecule dispersed in an epoxy resin, and a filler formed of at least either an inorganic compound or an inorganic compound having a modified surface thereon with an organic compound. | 2010-12-23 |
20100319965 | ELECTRONIC CARD AND AIRCRAFT INCLUDING SAME - An electronic card that includes at least two superimposed conducting layers with an insulation layer between the two conducting layers, the two conducting layers each including a utility conducting portion and a conducting portion at the periphery of the utility conducting portion with an insulating portion between the conducting portions, the insulating portion of a first of the two layers being offset relative to the insulating portion of the second of the layers. An aircraft includes a housing in which at least one such card is provided. | 2010-12-23 |
20100319966 | PACKAGING SUBSTRATE AND FABRICATION METHOD THEREOF - A method for fabricating a packaging substrate includes: stacking two metal layers; encapsulating the two metal layers with assistant dielectric layers; forming built-up structures on the assistant dielectric layers, respectively; and separating the built-up structures along the interface between the two metal layers so as to form two packaging substrates. Owing to the adhesive characteristic of the assistant dielectric layers, the two metal layers are unlikely to separate from each other during formation of the built-up structures. But after portions of the dielectric layer around the periphery of the metal layers are cut and removed, the two metal layers can be readily separated from each other. The two metal layers can be patterned to form wiring layers, metal bumps, or supporting structures to avoid waste of materials. A packaging substrate and a fabrication method thereof are provided. | 2010-12-23 |
20100319967 | INHIBITION OF COPPER DISSOLUTION FOR LEAD-FREE SOLDERING - A device fabrication method, according to which a tin-copper-alloy layer is formed adjacent to a copper-plated pad or pin that is used to electrically connect the device to external wiring. Advantageously, the tin-copper-alloy layer inhibits copper dissolution during a solder reflow process because that layer is substantially insoluble in liquid Sn—Ag—Cu (tin-silver-copper) solder alloys under typical solder reflow conditions and therefore shields the copper plating from direct physical contact with the liquefied solder. | 2010-12-23 |
20100319968 | ALUMINUM CIRCUIT BOARD AND METHOD AND ELECTROPLATING SOLUTION FOR MAKING THE SAME - An aluminum circuit board includes a body unit and a conductive wiring unit. The body unit includes an aluminum substrate, an alumina layer formed on the aluminum substrate, and a medium deposit formed on the alumina layer and made of nickel, copper, cobalt, iron, silver, zinc, tin, molybdenum, or combinations thereof. The conductive wiring unit is formed on the body unit and is bonded to the medium deposit. | 2010-12-23 |
20100319969 | LIGHTWEIGHT CIRCUIT BOARD WITH CONDUCTIVE CONSTRAINING CORES - Prepregs, laminates, printed wiring board structures and processes for constructing materials and printed wiring boards that enable the construction of printed wiring boards with improved thermal properties. In one embodiment, the prepregs include substrates impregnated with electrically and thermally conductive resins. In other embodiments, the prepregs have substrate materials that include carbon. In other embodiments, the prepregs include substrates impregnated with thermally conductive resins. In other embodiments, the printed wiring board structures include electrically and thermally conductive laminates that can act as ground and/or power planes. | 2010-12-23 |
20100319970 | PACKAGE SUBSTRATE HAVING EMBEDDED CAPACITOR - A package substrate having embedded capacitor is provided. The package substrate includes a core circuit board, at least one dielectric layer, at least one embedded capacitor, and at least one metal layer. The core circuit board has at least one wiring layer, and the core circuit board has at least one conductive through hole connected to the wiring layer. At least one dielectric layer covers the wiring layer, and the dielectric layer has at least one conductive through hole. At least one embedded capacitor is embedded in the dielectric layer. At least one metal layer covers the dielectric layer and connected to the embedded capacitor, wherein the metal layer is connected to the wiring layer through the conductive through hole. | 2010-12-23 |
20100319971 | AIRGAP-CONTAINING INTERCONNECT STRUCTURE WITH IMPROVED PATTERNABLE LOW-K MATERIAL AND METHOD OF FABRICATING - A method of fabricating an airgap-containing interconnect structure in which a patternable low-k material replaces the need for utilizing a separate photoresist and a dielectric material is provided. Specifically, a simplified method of fabricating single-damascene and dual-damascene airgap-containing low-k interconnect structures with at least one patternable low-k dielectric and at least one inorganic antireflective coating is provided. | 2010-12-23 |
20100319972 | PRINTED CIRCUIT BOARD AND METHOD FOR MANUFACTURING THE SAME - A printed circuit board having a connection terminal which includes: an insulating substrate including first and second surfaces, and an end surface along an outline normal to an insertion direction of the connection terminal; at least one lead wiring layer formed on the first surface of the insulating substrate; an insulating protection film covering the lead wiring layer; at least one lead terminal layer constituting an end portion of the lead wiring layer, the lead terminal layer being formed into a strip, and having an end surface along the outline; a reinforcement body adhered on the second surface of the insulating substrate at a backside position of the lead terminal layer; wherein a distance between an outer surface of the lead terminal layer and an outer surface of the reinforcement body on the outline side is smaller than a distance therebetween on the lead wiring layer side. | 2010-12-23 |
20100319973 | PACKAGE SUBSTRATE HAVING EMBEDDED CAPACITOR - A package substrate having embedded capacitor is provided. The package substrate includes a first core circuit board, at least one embedded capacitor, a second core circuit board and a dielectric layer. The first core circuit board has at least one metal layer, and the first core circuit board has at least one first conductive through hole connected to the metal layer. At least one embedded capacitor is embedded in the first core circuit board and connected to the metal layer. The second core circuit board has at least one wiring layer, and the second core circuit board has at least one second conductive through hole connected to the wiring layer. The dielectric layer is laminated between the first core circuit board and the second core circuit board. | 2010-12-23 |
20100319974 | PRINTED WIRING BOARD, ELECTRONIC DEVICE, AND METHOD FOR MANUFACTURING ELECTRONIC DEVICE - An electronic device comprises: a printed wiring board that comprises a substrate, pads formed on the substrate, and an insulating film layer covering a surface of the substrate on which the pads are formed; and an electronic element that comprises external terminals electrically connected to the pads and that is mounted on the printed wiring board. The insulating film layer comprises at least one connecting opening section each exposing at least part of one of the pads. At least part of an inner wall of the connecting opening section comprises at least one step section. | 2010-12-23 |
20100319975 | FILTER, BRANCHING FILTER, COMMUNICATION MODULE, AND COMMUNICATION EQUIPMENT - A filter of the present invention is a filter including a substrate and a filter element mounted on the substrate, wherein the substrate is provided with a plurality of wiring layers including a filter element wiring layer which is formed with wirings and connected with the filter element, an insulating layer interposed between the plural wiring layers and a ground pattern formed in at least a part of a wiring layer under the filter element wiring layer; and the thickness of the insulating layer interposed between the filter element wiring layer and the other wiring layer is smaller than the width of the wiring formed in the filter element wiring layer, and is larger than the thickness of the other wiring layer. By such a configuration, a thin, high-suppression and high-isolation filter can be realized. | 2010-12-23 |
20100319976 | MOTOR CONTROL DEVICE AND VEHICLE STEERING SYSTEM - A motor control device comprising a control board for controlling driving of an electric motor, the control board including a multilayer circuit board having inner layers and outer layers, a ground pattern disposed around an output shaft of the electric motor formed on one of the inner layers, and a severed portion formed on a part of the ground pattern, so as to sever through the ground pattern in a radial direction of the output shaft. The construction reduces noise from the motor control device. | 2010-12-23 |
20100319977 | SOLDER CONNECTION ELEMENT - In a solder connection element ( | 2010-12-23 |
20100319978 | Internally Overlapped Conditioners - The application discloses novel internal structures of energy conditioners, assemblies of external structures of energy conditioners and mounting structure, and novel circuits including energy conditioners having A, B, and G master electrodes. | 2010-12-23 |
20100319979 | PRINTED CIRCUIT BOARD AND METHOD FOR DRILLING HOLE THEREIN - A method for defining a stepped hole in a printed circuit board (PCB) by drilling layers of the PCB by different sized drill bits along a same axis. The stepped hole in the layers of the PCB are decreased in diameters sequentially. | 2010-12-23 |
20100319980 | PRINTED CIRCUIT BOARD - Disclosed herein is a printed circuit board. When power layers for supplying different voltages are sequentially stacked, a first EBG cell formed between a first power layer and a ground layer is arranged within a second EBG cell formed between a second power layer and the ground layer to allow the first EBG cell and the second EBG cell to have a double EBG structure. Accordingly, the present invention can prevent a DC open state while preventing noise and realizing band-stop characteristics. | 2010-12-23 |
20100319981 | SYSTEM AND METHOD OF FORMING ISOLATED CONFORMAL SHIELDING AREAS - A system and method of forming a patterned conformal structure for an electrical system is disclosed. The conformal structure includes a dielectric coating positioned on an electrical system having circuit components mounted thereon, the dielectric coating shaped to conform to a surface of the electrical system and having a plurality of openings therein positioned over contact pads on the surface of the electrical system. The conformal structure also includes a conductive coating layered on the dielectric coating and on the contact pads such that an electrical connection is formed between the conductive coating and the contact pads. The dielectric coating and the conductive coating have a plurality of overlapping pathway openings formed therethrough to isolate a respective shielding area of the conformal structure over desired circuit components or groups of circuit components. | 2010-12-23 |
20100319982 | ELECTROMAGNETIC WAVE SHIELDING SUBSTRATE - Disclosed herein is an electromagnetic wave shielding substrate including an electromagnetic bandgap structure which is formed along the edge thereof in order to prevent electromagnetic waves from being emitted therefrom. The electromagnetic wave shielding substrate can effectively prevent the emission of electromagnetic waves. | 2010-12-23 |
20100319983 | STRUCTURE FOR SUPPORTING ELECTRIC POWER TRANSMISSION LINES - A structure for supporting electric power transmission lines that aims to obtain a better stress and strain behaviour providing a higher ultimate economy. The preferred embodiment is directed to a structure that comprises a metallic vertical structure ( | 2010-12-23 |
20100319984 | MISSING PART CHECKING STRUCTURE - A structure is provided for checking a missing part in an electric device with an accommodation space for an electric component ( | 2010-12-23 |
20100319985 | Junction Box and Mould for Manufacturing Such a Junction Box - The invention relates to a junction box for enclosing an electrically conductive connection of at least one connecting cable to electrical connecting means present in the housing, comprising: a housing provided with at least one passage opening for passage of the connecting cable into the interior of the housing and an access opening for providing access to the interior of the housing for the purpose of connecting the at least one connecting cable to the connecting means, characterized in that the device comprises at least one clamping element which is adapted, when placed on the part of the at least one connecting cable extending inside the junction box, to absorb tensile forces exerted on the part of this connecting cable situated outside the junction box. | 2010-12-23 |
20100319986 | MODULAR VENTED CIRCUIT BOARD ENCLOSURE - A modular vented circuit board enclosure for housing circuit boards, computer circuitry, or other devices is disclosed. The modular enclosure can be formed by coupling together various components, such as one or more (i) side components, (ii) corner components, and (iii) face components. The modular enclosure can be easy to manufacture and be configured for a wide variety of applications, such as customizing a size and/or number of devices to be housed. For example, circuit boards can be added or removed from the enclosure without the need to cut portions of a standard rack mount. One or more components of the modular vented circuit board can be added to permit entry of more circuit boards into the enclosure. | 2010-12-23 |
20100319987 | LEAD FRAME DESIGN TO IMPROVE RELIABILITY - An electronic device package | 2010-12-23 |
20100319988 | CABLE FITTING ARRANGEMENT - A cable fitting arrangement ( | 2010-12-23 |
20100319989 | CABLE HARNESS - A cable harness has a wire group made of plural electric wires, connector terminals provided at both ends of the wire group, a braid sleeve provided around an outer periphery of the wire group, and ground connecting parts provided at both ends of the braid sleeve that are configured to be electrically connected to a ground part in an equipment. The braid sleeve includes a metallized high tension fiber. | 2010-12-23 |
20100319990 | Electrical Wire Connector With Temporary Grip - An electrical connector includes a crimpable tubular body including a receiving portion for receiving a wire conductor via an opening at a longitudinal end of the tubular body. The tubular body provides a permanent electrical connection to the wire conductor only upon at least a portion of the tubular body being crimped. The receiving portion has a tapered shape and inward projections for engaging the wire conductor to provide sufficient frictional force to resist removal of the wire conductor from the receiving portion prior to crimping, without providing a permanent electrical connection between the tubular body and the wire conductor. In one implementation, the electrical connector is a butt connector with two such equally sized receiving portions for splicing together two wires. In another implementation, the electrical connector is a butt connector with two different sized receiving portions for splicing together two differently sized wires. | 2010-12-23 |
20100319991 | Wall Contact Caliper Instruments for Use in a Drill String - A drill string caliper includes a mandrel configured to be coupled within a drill string. At least one laterally extensible arm is coupled to an exterior of the mandrel. A biasing device is configured to urge the at least one arm into contact with a wall of a wellbore. A sensor is configured to generate an output signal corresponding to a lateral extent of the at least one arm. | 2010-12-23 |
20100319992 | Apparatus and Method for Determining Corrected Weight-On-Bit - In one aspect, a method of determining a corrected weight-on-bit is provided, which method, in one embodiment, may include: drilling a wellbore with the drill bit; determining a weight-on-bit while drilling the wellbore; determining a pressure differential across an effective area of the drill bit while drilling the wellbore; and determining the corrected weight-on-bit from the determined weight-on-bit and the determined pressure differential. | 2010-12-23 |
20100319993 | DOWNHOLE TOOL LEG RETENTION METHODS AND APPARATUS - A back reamer includes a drive stem configured to support a main reamer body, the main reamer body including a plurality of receptacles, and a plurality of cutting leg assemblies in positive locking engagement with the plurality of receptacles to restrict radial movement of the cutting leg assemblies. | 2010-12-23 |
20100319994 | RESONANCE ENHANCED DRILLING: METHOD AND APPARATUS - The present invention relates to drilling apparatus comprising a drill-bit ( | 2010-12-23 |
20100319995 | SELF-CIRCULATING DRILL BIT - A drilling system comprising a drive shaft having a fluid flow conduit extending therethrough; a drill bit mounted for rotation by the drive shaft and having a bit face which, in use, contacts a formation to be drilled, and including a fluid flow passage with an outlet near the center of the bit face; a first fluid flow line extending from the outside of the drive shaft to the flow passage in the drill bit; and a second fluid flow line extending from the outside of the drive shaft to the flow conduit. A method of drilling a well using such a system comprise positioning the system in a borehole; rotating the drive shaft to rotate the bit; urging the bit against the formation to be drilled; and pumping drilling fluid down the borehole so as to pass though the first flow line and to exit the fluid flow passage in the drill bit via the outlet, flow over the bit face and pass into the fluid low conduit via the second fluid flow line. | 2010-12-23 |
20100319996 | MILLING CAP FOR A POLYCRYSTALLINE DIAMOND COMPACT CUTTER - A PDC cutter includes a diamond table layer and an underlying substrate layer. A cap structure for the PDC cutter includes a first portion overlying, but not attached to, a front face of the diamond table layer and a second portion extending perpendicularly from the first portion which is overlying and attached to an outer peripheral surface of the underlying substrate layer. | 2010-12-23 |