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Boring or penetrating the earth

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Class / Patent application numberDescriptionNumber of patent applications / Date published
175327000 BIT OR BIT ELEMENT 694
175057000 PROCESSES 674
175040000 WITH SIGNALING, INDICATING, TESTING OR MEASURING 384
175024000 AUTOMATIC CONTROL 161
175320000 WITH TOOL SHAFT DETAIL 77
175092000 WITH BELOW-GROUND TOOL DRIVE PRIME MOVER 58
175073000 MEANS TRAVELING WITH TOOL TO CONSTRAIN TOOL TO BORE ALONG CURVED PATH 44
175293000 BELOW-GROUND (1) HAMMER, OR (2) IMPACT MEMBERS 42
175170000 WITH TOOL DRIVE PRIME MOVER OR ABOVE-GROUND MECHANICAL MOTION CONVERTING DRIVE MEANS 40
175002000 BORING WITH EXPLOSION IN INACCESSIBLE HOLE 39
175011000 BORING BY DIRECTLY APPLYING HEAT TO FLUIDIZE OR COMMINUTE 37
175263000 CUTTER ELEMENT LATERALLY SHIFTABLE BELOW GROUND (E.G., EXPANSIBLE) 35
175005000 BORING A SUBMERGED FORMATION 34
175056000 NATURAL VIBRATION CHARACTERISTIC OF AN ELEMENT OF BORING MEANS RELATED (1) TO NATURAL VIBRATION CHARACTERISTIC OF ANOTHER ELEMENT, OR (2) TO FREQUENCY OF AN IMPOSED MOTION 29
175207000 WITH ABOVE-GROUND MEANS FOR HANDLING DRILLING FLUID OR CUTTING 23
175052000 WITH MAGAZINE FOR SUCCESSIVELY MOVING UNCONNECTED, ORIENTED TOOL OR SHAFT SECTIONS TO USE POSITION 21
175244000 WITH MEANS MOVABLE RELATIVE TO TOOL TO RECEIVE, RETAIN, OR SEVER UNDISTURBED CORE 18
175019000 BORING WITHOUT EARTH REMOVAL (I.E., COMPACTING EARTH FORMATION) 18
175017000 WITH HEATING OR COOLING (1) WITHIN THE BORE, OR (2) DRILLING FLUID 17
175085000 WITH ORIENTING OR RACKING MEANS FOR UNCONNECTED TOOLS OR SECTIONS OF SHAFT OR CASING 13
175055000 TOOL ACTUATION BY REACTION OF ROTATING ECCENTRIC MASS 13
175053000 ENLARGEMENT OF EXISTING PILOT THROUGHBORE REQUIRING ACCESSIBILITY TO EXISTING OPPOSITE BORE ENDS TO INSERT AND REMOVE TOOL 12
175039000 WITH BIT WEAR SIGNAL GENERATING 10
175054000 BORING BY BELOW GROUND RECIRCULATION OF UNSUPPORTED ELEMENTS (E.G., SHOT) 10
175227000 WITH STORAGE MEANS FOR BIT LUBRICANT CARRIED BY BIT OR SHAFT 10
175220000 WITH ABOVE-GROUND GUIDE FOR RELATIVELY ADVANCING TOOL 10
175162000 WITH ABOVE-GROUND MEANS TO FEED TOOL 9
175113000 WITH MEANS TO SIMULTANEOUSLY FEED AND ROTATE TOOL FROM A SINGLE MECHANICAL ELEMENT 9
175122000 WITH MEANS TO FEED DRIVE 8
175315000 COMBINED 7
175051000 WITH SELF-ACTING CYCLIC ADVANCE AND RETRACTION OF TOOL OR TOOL SHAFT 6
175424000 MISCELLANEOUS (E.G., EARTH-BORING NOZZLE) 6
175206000 WITH ABOVE-GROUND MEANS FOR PREPARING OR SEPARATING DRILLING FLUID CONSTITUENTS 6
175230000 WITH EXPANSIBLE BORE WALL ANCHOR (E.G., PACKER) 6
175219000 WITH PARTICULAR ACCOMMODATION FOR PERSONNEL (E.G., SEAT OR PROTECTOR) 5
20080283303SAFETY NET FOR A DRILL RIG - A safety net for a top drive including: a body having an upper end and a lower end, the upper end including fasteners for connecting the upper end of the safety net to the top drive and the lower end including an inwardly directed return for extending inwardly beneath the underside of the top drive; and an opening through the body for accessing the top drive from outside the net.11-20-2008
20120181087FALLING OBJECT PROTECTION SYSTEM - The present disclosure relates to a falling object protection system for use with a machine for forming underground bores and/or for installing product within underground bores. The falling object protection system includes a base forming a platform on which an operator can stand. The base includes an inner portion adapted to be positioned adjacent to the machine and an outer portion adapted to be positioned away from the machine. The falling object protection system also includes an outer barrier that extends upwardly from the outer portion of the base, and a top barrier that extends inwardly from the outer barrier and extends over the platform of the base. The falling object protection system further includes an upper frame that extends upwardly from an inner end portion of the top barrier. The upper frame includes a falling object deflection member spaced above the inner end portion of the top barrier.07-19-2012
20130008720ADJUSTABLE WORK PLATFORM FOR PIPE AND CASING STABBING OPERATIONS - A stabbing basket, for a rig and for supporting a worker while stabbing joints of tubular members together during running operations, comprises a frame member for mounting the stabbing basket to the rig, a platform to support the worker, a carriage to slidably mount the platform to the frame member, vertical power means for moving the carriage vertically with respect to the frame member, an articulating boom, interconnecting the platform with the carriage, said articulating boom comprising a first segment and a second segment, and at least one pivoting actuator positioned between the first segment and the second segment.01-10-2013
20130140092CAB MODULE FOR A MINING MACHINE - A seat module for an industrial machine. The industrial machine includes a base, a body, and a cab module supporting the seat module. The seat module includes a seat, a control panel mounted on the seat, one or more monitors attached to the control panel, and a plurality of controls positioned on the control panel. The seat module also includes a controller having a processor and connected to the control panel. The controller is configured to receive information from the plurality of controls and to control the operation of the industrial machine based on the received information.06-06-2013
20130199854Safety Protection Apparatus for Personnel on Oil Drilling Derricks - A safety apparatus for personnel on an oil drilling rig includes a cylindrical quick disconnect switch having a receptacle and a plunger. The receptacle has an open circuit pair of electrical wires. The plunger is configured to attach to a derrick man. The plunger and the receptacle are configured to mate when the plunger is inserted into the receptacle and to remain frictionally mated until pulled apart. The mating results in closing the circuit between the pair of electrical wires.08-08-2013
175203000 WITH ABOVE-GROUND MEANS TO ADVANCE OR RETRACT BORING MEANS 5
20090044983Portable Concrete Boring Machine - A portable boring machine for cutting holes in a cutting surface is provided. The portable boring machine includes a vacuum system to secure a front end of the portable boring machine to a cutting surface, a hydraulic boring sub-assembly, which includes a hole saw to cut holes in the cutting surface, a water cooling/lubrication system to provide cooling and/or lubrication to the hole saw during the cutting process, and a control system to control the operation of the portable boring machine. The portable boring machine also includes multiple power-driven wheels. The wheels are attached to a bottom portion of a frame and are powered by an engine, which is mounted within the frame.02-19-2009
20080283300DRILLING RIG AND VIBRATION DAMPENING SUPPORT FRAME - A drill rig includes a carrier platform and a drilling unit carried by the carrier platform. The drilling unit includes a support frame pivotally mounted on the carrier platform, a slider frame slidably mounted upon and surrounding the support frame, a drilling support mechanism mounted on the slider frame, a drill portion rotatable relative to said drilling support mechanism, and a power means for effecting rotation of the drill portion. When a drilling operation is to be effected, the support frame is pivotally moved to assume a substantially vertical position, and the slider frame is slidably moved along the support frame to an operative position for effecting a drilling operation. The support frame comprises two main tower beams partially covered in High-Density Polyethylene (HDPE) plastic, and the slider frame which surrounds the support frame comprises plates positioned on the top and bottom of the tower beams, with inside and outside joiner plates encasing the sides of the support frame. Each of these plates are covered with HDPE plastic on the surface which contacts the support frame. In this manner, vibration from the drilling operation is substantially reduced.11-20-2008
20100319999 Device for an Electromechanical Hoisting Machine, Especially for Use When Drilling Oil and Gas Wells - A device for an electromechanical hoisting machine (12-23-2010
20110048808FEED UNIT - The present invention pertains to a feed unit (03-03-2011
20130206480Human-Powered Borehole Drill - A human-powered borehole drill bridges the gap between large drilling rigs and the other less-effective manual methods. Intended mainly for developing countries, the design is affordable and also extremely simple, as very little product support or spare parts will be needed. The drill uses conventional drill pipe and drill bits allowing the drill system to mimic more conventional methods of drilling and existing hardware to maintain uniformity in drilling and easier access to more drilling products.08-15-2013
175084000 WITH ABOVE-GROUND CLEANER FOR BORING MEANS 4
20090178853Mobile soil sampling device with vacuum collector - A mobile soil sampling device is mounted on the side of a vehicle such as an ATV or UTV and includes an upstanding frame member which is vertically movable with respect to the vehicle by means of a parallel arm linkage and actuator. A vertically disposed and rotatable auger is mounted on the frame member and is moved upwardly and downwardly with respect thereto through the use of a motor and pinion gear with the pinion gear engaging a gear rack on the frame member. The auger is rotated so as to dig into the ground to the desired depth with the soil sample being conveyed upwardly into a vacuum collection chamber with the soil sample being conveyed to a vacuum chamber mounted on the vehicle. A sample collection device is mounted beneath the vacuum chamber for receiving the desired soil samples. An auger flute cleaning apparatus is mounted on the device to remove soil from the flutes of the auger as the auger is raised from a soil penetration position. The soil removed from the auger by the flute cleaning apparatus drops downwardly into the collection chamber.07-16-2009
20130126244BALL AND SOCKET ROLLER REAMER AND KEYSEAT WIPER - Exemplary drill tools for placement in a drill string may include a body; a plurality of reamer cutters; and a plurality of ball and socket connectors configured to attach the plurality of reamer cutters to the body. Each of the plurality of reamer cutters may be replaceable by removing at least one of the plurality of ball and socket connectors from the reamer body. Each of the ball and socket connectors may be attached to the reamer body with bolts. Each of the ball and socket connectors may include titanium dioxide and/or titanium carbide coatings where the connectors interface with the reamer cutters.05-23-2013
20130153303APPARATUS AND METHOD TO CLEAN A TUBULAR MEMBER - A system to clean a tubular member includes an apparatus to support a tubular member having a bore with a longitudinal axis extending therethrough, and a fluid dispensing system disposed adjacent to an opening of the apparatus, the fluid dispensing system having a nozzle to dispense fluid therefrom.06-20-2013
20130153302APPARATUS TO WIPE A TUBULAR MEMBER - The present disclosure relates to an apparatus and method to wipe a tubular member. The apparatus includes a first wiper section and a second wiper section, in which the first wiper section and the second wiper section are movable with respect to each other towards a point of convergence. The apparatus may further include a base having an aperture formed therein to receive the tubular member such that the first wiper section and the second wiper section are connected to the base and movable with respect to the base between an open position and a closed position.06-20-2013
175089000 TOOL ELEMENT OR CONTINUOUSLY DRIVEN FLEXIBLE OR ARTICULATED ENDLESS MEMBER 4
20100319998WELLBORE CONSOLIDATING TOOL FOR ROTARY DRILLING APPLICATION - A subpart of a drill string is described having an outer circumferential surface which is contoured and adapted to engage the wall of the borehole with a small angle of attack while exerting during rotary drilling operations an compacting pressure on mud cake and/or cuttings present in the annulus between the drill string and the borehole.12-23-2010
20100078220DRILLING AND OPENING RESERVOIRS USING AN ORIENTED FISSURE - A system and method for increasing hydrocarbon production from a subsurface reservoir and/or sequestering waste material such as carbon dioxide by utilizing a connection between two well bores and a flexible linear cutting device, such as a segmented diamond wire saw, to form a fissure beginning at the connection of the well bores and extending along a specified the length of the well bores. Methods and systems relate to hydrocarbon production and/or waste sequestration, including for extracting or recovering oil or gas from coal beds or tar sands.04-01-2010
20090084605INDEXING FOR COILED TUBING DRILLING RIG - The invention provides a coiled tube drilling rig (04-02-2009
20120305318FORMING ORIENTED FISSURES IN A SUBTERRANEAN TARGET ZONE - A system for forming a subterranean oriented fissure in a target zone by utilizing a connection between two well bores and a flexible linear cutting device, such as a segmented diamond wire saw, to form the fissure beginning at the connection of the well bores and extending along a specified the length of the well bores.12-06-2012
175423000 WEDGING SLIP ASSEMBLY FOR SUPPORTING A PIPE OR ROD 4
20100116558Method of Running a Pipe String Having an Outer Diameter Transition - One embodiment provides an adjustable guide 05-13-2010
20110114391GRIP HEAD FOR AN EARTH BORING UNIT - The invention relates to a grip head for an earth boring unit, comprising a hollow shaft (05-19-2011
20110094802SLIP DEVICE FOR SUSPENDING A DRILL OR CASING STRING IN A DRILL FLOOR - Clamping die (04-28-2011
20090057032Segmented Bottom Guide for String Elevator Assembly - The present invention is directed to a segmented bottom guide for directing the top of a tubular member into and through a bore in the bottom of a tapered bowl so that the tubular member can be engaged by pipe slips. One embodiment of the segmented bottom guide of the present invention comprises a bottom guide retainer having a plurality of chambers for being disposed intermediate the top of a bell guide and the bottom of the tapered bowl. The bottom guide segments are radially received into, and securable in, the retainer to therein and together form a generally conical frustum generally aligned with and intermediate the top of the bell guide and the opening of the tapered bowl.03-05-2009
175018000 ICE BORING 3
20090120688Method of attachment of a towing anchor to an iceberg - A drilling bit for penetrating an iceberg a predetermined distance to establish an anchor point for towing the iceberg to a predetermined location.05-14-2009
20100288556Ice Drill - A device is designed for optionally connecting a crank (11-18-2010
20120318577POWERED AND MANUAL AUGER - Apparatus and methods for drilling a hole. A hybrid powered and manual auger is disclosed. The auger may include one or more cutting blades coupled to a drive shaft driven by a motor. The auger may further include a manual crank configured to rotate the motor and the drive shaft about a drive axis. The manual crank comprises a U-shaped offset formed by an upper crank arm and a lower crank arm joined by a crank handle portion. The drive shaft can be rotated by the motor alone, by rotation of the manual crank alone, and by a combination of the motor and rotation of the manual crank.12-20-2012
175001000 WITH SEISMIC SHOCK GENERATING 3
20130081874Electro-Hydraulic Drilling With Shock Wave Reflection - Shock waves produced during electro-hydraulic drilling can be reflected into a rock body where the reflected shock waves are converted from compression waves to tension waves, which are more efficient at breaking down the rock body. A system configured for electro-hydraulic drilling where shock waves produced during drilling are reflected into the rock body includes two electrodes and a shock wave reflector disposed at an electro-hydraulic drill head. The two electrodes are configured to (1) facilitate formation of a spark along a spark path spanning the two electrodes and (2) facilitate a pulse of electricity being passed through the spark to form a primary shock wave emanating from the spark path. The shock wave reflector is configured to reflect a portion of the primary shock wave such that the reflected shock wave is concentrated to a focal region within the rock body.04-04-2013
20110132662PHASE WELLBORE STEERING - A method of steering a drilling operation of a well using acoustic measurements. The method includes obtaining, using a central processing unit (CPU), a clean-wet matrix line for the well, where the clean-wet matrix line includes a number of normal compressional values, obtaining, using the CPU, the acoustic measurements from at least one logging while drilling tool at a current depth of the drilling operation, where the acoustic measurements include a compressional to shear velocity ratio and a delta-T compressional measurement, and determining, using the CPU, a current phase of the drilling operation by comparing the acoustic measurements to the clean-wet matrix line. The method further includes, in response to determining that the current phase is not a target phase, generating an updated well trajectory for steering the drilling operation toward the target phase and adjusting the drilling operation using the updated well trajectory.06-09-2011
20080217057Method for taking seismic measurements - In one aspect of the present invention a method has steps for taking downhole measurements. A network integrated into a downhole tool string in a well bore may be in communication with a downhole sensor, the downhole sensor having a downhole clock that may be in communication over the network with and synchronized with a top-hole clock source. A signal source may be within a transmitting distance of the downhole sensor and may be activated. The downhole sensor records signals from the signal source at a recorded time when the network is disconnected from the top-hole clock source. When the network is reconnected, the downhole clock and the top-hole clock source are re-synchronized. The clock drift that occurred during the disconnection may be calculated. The recorded time may be adjusted to reflect what it would have been if the downhole clock had been synchronized with the top-hole clock source.09-11-2008
175232000 WITH MEANS MOVABLE RELATIVE TO TOOL BELOW GROUND TO STOP FLOW TOWARD BORE BOTTOM 2
20100133014Core Catcher and Corer Having It - The present invention relates to a core catcher and a corer having the same, and more particularly, to a core catcher provided with dual blade radial pins for preventing loss of sediments and a corer having the same.06-03-2010
20110083905Coring apparatus with sensors - A coring apparatus includes an outer core barrel associated with a drill bit and an inner core barrel adapted to accept a core sample. The inner core barrel is rotatable with respect to the outer core barrel via a rotatable bearing. The coring apparatus may include a rotation sensor located within the inner core barrel. The rotation sensor measures relative rotation between the inner core barrel and the outer core barrel. Alternatively the coring apparatus may include one or more strain sensors adapted to measure tension and/or compression experienced by the inner core barrel or a vibration sensor mounted on the inner core barrel. The vibration sensor measures vibration experienced by the inner barrel.04-14-2011
175257000 TOOL REMOVABLE OR INSERTABLE THROUGH OR AROUND DRIVING OR DRIVEN SHAFT OR CASING 2
20110203852Segmented Downhole Tool - A downhole tool includes a plurality of segments positioned on a core member. This construction is particularly suitable for sleeves, stabilizers and drill bit gage pads used in the formation of oil and gas wells. Worn or damaged segments can be replaced without the need for replacing the entire unit. The segments may include spiral vanes for directed fluid upwardly to the well head.08-25-2011
20090288886Retrieval Tool With Slips for Retrieving Bottom Hole Assembly During Casing While Drilling Operations - A casing-while-drilling bottom hole assembly is releasably connected with a casing string. A retrieval tool is run into the casing string and latched to the bottom hole assembly. Slips are mounted to the retrieval tool, the slips being retracted during running in. Differential pressure moves the retrieval tool and bottom hole assembly upward, and the slips engage the casing string to prevent downward movement if the pressure differential drops too low. A flow passage extends through the retrieval tool and the bottom hole assembly. A check valve in the retrieval tool allows downward flow through the flow passage but prevents upward flow, so that fluid may be circulated through the retrieval tool and bottom hole assembly while suspended with the slips.11-26-2009
175317000 WITH MEANS MOVABLE RELATIVE TO TOOL OR SHAFT TO CONTROL BELOW-GROUND PASSAGE 2
20080289878DOWNHOLE BLOWOUT PREVENTOR - The downhole flow control means or downhole blowout preventor (downhole BOP) of the present invention is adapted for use during reverse circulation drilling with both concentric drill pipe and concentric coiled tubing. The downhole BOP comprises an inner tube member having an inner passage therethrough and an outer casing forming an annular passage between the inner tube member and the outer casing. The inner passage and the annular passage of the downhole BOP is in fluid communication with the inner passage and annular passage, respectively, of the concentric drill pipe or concentric coiled tubing. The downhole BOP further comprises two valve means, preferably a check valve and a ball valve, for closing off the annular passage and the inner passage of the downhole BOP, respectively. In a preferred embodiment, the downhole BOP further comprises an electric actuator for opening and closing the ball valve.11-27-2008
20130008723DRILLING APPARATUS WITH SHUTTER - The present disclosure relates to a drilling apparatus including a cutting unit defining at least one through-hole that provides fluid communication between a distal side and a proximal side of the cutting unit. The cutting unit includes a plurality of cutting elements at the distal side of the cutting unit. The cutting unit also includes a shutter for selectively opening and blocking the through-hole of the cutting unit.01-10-2013
175078000 MEANS CARRIED BY HOUSING INSERTABLE IN INACCESSIBLE HOLE TO ADVANCE SIDE WALL TOOL LATERALLY 2
20130068531LARGE CORE SIDEWALL CORING - A coring tool having a coring mechanism for cutting cores from a borehole sidewall. The coring mechanism comprises a motor having a coring bit to cut 1.5 inch diameter, 2.5 inch long cores. Support plates fixed to the housing comprise guide slots having a longer leg and a shorter leg. Leading pins and follower pins extend from the motor into the guide slots. When the leading and follower pins are driven along the guide slots, the motor is rotated and then pushed into the formation. Drive plates positioned between the housing and the support plates comprise slots and pivot about a pin. The leading pins further extend into the drive plate slots. A hydraulic cylinder pivots the drive plates, pushing the pins along the guide slots to rotate the motor to a radial position and then urge the motor towards the formation.03-21-2013
20090127000Sectional drive and coupling system - A sectional drive and coupling system for transmitting rotational power to an output, which system includes multiple, splined drive and receiving segments that are connected, nested and interlocked in the ends of successive segment housings to define a drive string that is rotatable in a selected straight or curved path. The top one of the segments cooperates with a drive mechanism to effect rotation of the drive string in concert and the bottom one of the segments connects to an output such as a drill bit. Multiple, tapered and truncated exterior splines on the drive segments mesh with complementary interior splines on the adjacent receiving segments in the segment housings to enable slight angular positioning of the sets of drive and receiving segments on each other and facilitate dampening of drive vibration and bending of the drive string in or out of the chosen path in any desired direction as the drive string transmits rotational power in a curved path of desired magnitude from the drive mechanism to the output. The drive and receiving segments are typically connected internally by a bolt, nuts and belleville springs at the ends of the housings to form the drive string. In one embodiment a drill bit is mounted on the bottom one of the segments on the drive string for interval drilling. In another embodiment a selected number of drive and receiving segments and connected segment housings replace the flexible drive shaft coupling in a mud motor.05-21-2009
175079000 TOOL SHAFT ADVANCED RELATIVE TO GUIDE INSERTABLE IN INACCESSIBLE HOLE TO CHANGE DIRECTION OF ADVANCE 2
20120241221MICROTUNNELLING SYSTEM AND APPARATUS - A microtunnelling apparatus and system that includes an external drive system having rotational and linear thrust drive means, a drill head section having drill rotor and drill rod and connecting to intermediate drill rods allowing extension of the boring hole created by the drill head section driven by the drive system. The drill head includes a modular construction having a plurality of circular disc like elements, a bearing module, a steering module, a spacer module, and a mounting module, for axial alignment and abutment and mounting within a cylindrical steering shell. Directional steering of the drill head includes a plurality of substantially radially extending channels in steering module, each with an hydraulically movable protuberance movable by control means to redirect the outer steering casing and thereby redirect the drill head section mounted on the distal end of the drill rods.09-27-2012
20120145463METHODS AND APPARATUS FOR DRILLING, COMPLETING AND CONFIGURING U-TUBE BOREHOLES - A borehole network including first and second end surface locations and at least one intermediate surface location interconnected by a subterranean path, and a method for connecting a subterranean path between a first borehole including a directional section and a second borehole including a directional section. A directional drilling component is drilled in at least one of the directional sections to obtain a required proximity between the first and second boreholes. An intersecting component is drilled, utilizing magnetic ranging techniques, from one directional section to provide a borehole intersection between the first and second boreholes, thereby connecting the subterranean path.06-14-2012
175202000 ABOVE-GROUND MEANS FOR RELATIVELY MOVING BELOW-GROUND TOOL ELEMENTS 1
20110253455PERMANENT MAGNET DIRECT DRIVE TOP DRIVE - A drive system (10-20-2011
175091000 BORING MEANS INCLUDING A CONTINUOUSLY ROTATING BIT DESCRIBING A NONCIRCULAR CROSS-SECTIONAL BORE 1
20090090560Hole Boring Tool - The invention is related to a hole boring tool having a cylindrical sleeve, a piston assembly and the seal located on the piston assembly. The piston assembly is formed of a piston, a neck extending backward from the piston, and a handle extending backward from the neck. The seal is located on an outer surface of the piston and is in contact with an inner surface of the cylindrical sleeve.04-09-2009
175316000 WITH RELATIVELY MOVABLE PARTS TO FACILITATE CLEANING WITHOUT DISASSEMBLY 1
20090283330Downhole Material Retention Apparatus - A debris removal device features structural support from an exterior housing that allows more space for debris collection. The debris enters the collection volume from the top to eliminate debris from having to go through a valve. The screen in the device is disposed internally to protect it during handling and running. A variety of external flow diverters are used to direct debris laden fluid into the tool and to keep debris out of an annular space around the tool that could interfere with its removal. The diverters can be actuated by relative movement in the tool or applied pressure to a piston which can inflate a sleeve or orient or misalign paths through brushes for selective bypassing of fluid exterior to the tool.11-19-2009
175314000 WITH WELL-TYPE SCREEN 1
20100236833Displaceable Plug in a Tool String Filter - A filter for a drill string comprises a perforated receptacle having an upper end and a lower end. The upper end of the filter comprises a drilling mud intake, and the lower end of the filter comprises an opening. A displaceable plug is seated on the opening at the lower end.09-23-2010
175308000 WITH RECEPTACLE 1
20090173545AIR FILTRATION FOR ROCK DRILLING - A downhole tool to separate liquid from a drilling fluid includes a multi-vein cyclonic separator disposed within a housing, the cyclonic separator including at least two veins extending in a spiral along the length of the cyclonic separator, holes in the housing positioned adjacent to edges of veins of the cyclonic separator to allow liquid accelerated from the drilling fluid to exit the housing, and wherein the cyclonic separator is configured to provide high centrifugal forces to the drilling fluid downhole.07-09-2009
175088000 WITH MEANS CARRYING CUTTINGS LATERALLY OF BORE AXIS COMPRISING (1) CHUTE, (2) CONVEYER, OR (3) VEHICLE 1
20110198130ARTICULATED PRE-SKIMMER MOUNT - An articulated pre-skimmer mount for a pre-skimmer associated with a drill bit feed unit comprises a feed mounting arm mounted to the drill bit feed unit. A first end is configured for attachment to the drill feed unit and a second end includes a cylindrical mounting shaft and an axial positioning plate. An intermediate arm has a first end comprising a cylindrical sleeve mounted thereto. The cylindrical sleeve has an inner cylindrical opening configured for sliding engagement with the cylindrical mounting shaft and a mating plate configured for locking, face-to-face engagement with the axial positioning plate. A second end comprises a pre-skimmer mounting assembly configured for attachment to the pre-skimmer, wherein an axial positioning plate and a mating plate are operable to disengage, for rotation of the intermediate arm about an axis of the feed mounting arm for alignment of the pre-skimmer.08-18-2011
175108000 COMMON DRIVE OR ADVANCING MEANS FOR CONCURRENTLY BORING ALONG LATERALLY SPACED AXES 1
20120125691Modular drilling system - A modular drilling system including a plurality of different size drill bits which can be interchangeably mounted on a common tapered male connecting portion of a drill rod assembly. The tapered male connecting portion may be formed directly onto a tapered drill rod of the assembly or may be formed on an adapter which is threaded onto a threaded drill rod of the assembly. Each bit includes a female connecting portion having a generally cylindrical tapered surface mating with a corresponding tapered surface of the male connecting portion and at least three planar sections adapted to provide positive engagement with corresponding planar sections of the male connecting portion.05-24-2012
175087000 CONVERTIBLE 1
20110147090MULTI-FUNCTIONAL MACHINE ADAPTABLE FOR DRILLING, BORING AND LIFTING - A multi-function machine for drilling, boring, driving and lifting comprising a translation system (06-23-2011

Patent applications in all subclasses Boring or penetrating the earth