Class / Patent application number | Description | Number of patent applications / Date published |
251298000 | PIVOTED VALVES | 49 |
20090014674 | Valve regulation assembly - The present invention is directed to a bypass valve assembly having a valve housing with an inlet port, outlet port, and bypass port all formed within the valve housing. A valve member is operably connected to the valve housing and includes a first valve plate and second valve plate that face in substantially opposite directions from each other. The first valve plate articulates to form a tight barrier with the outlet port when the valve member is in a first position, and the second valve plate articulates to form a tight barrier with the bypass port when the valve member is in a second position. | 01-15-2009 |
20090261285 | FLOW CONTROL DEVICE - A flow control device in which a flapper is continuously biased to the closed position by a leaf spring that may have a plurality of fingers. The same valve includes a shutoff mechanism allowing the user to adjust forward flow through the valve or shut it off entirely. The leaf spring is made to include polyoxymethylene. | 10-22-2009 |
20090294717 | COMPRESSOR THROTTLING VALVE ASSEMBLY - A throttling valve assembly has an outer housing that is sealed. An actuator is connected to a pressure balanced shaft that extends into the housing to operate a plurality of linkages that can rotate blades in tandem. With the surrounding housing sealed, the shaft penetrations of the blade support shafts no longer need seals or a purge system to supply process gas during times of reduced pressure in situations with the blades nearly closed. A pressure equalization system has balance passages internal to the housing to allow flow from higher pressure zones to lower pressure zone of the process gas so as to avoid creation of a condition that can draw air into any zones of reduced pressure in the housing. | 12-03-2009 |
20110084225 | Valve Made From Two Materials and Writing Utensil With Retractable Tip Incorporating Same - A valve includes a first valve portion made from a first material, the first valve portion including a body, a door, and an inner hinge pivotably connecting the body to the door, the body including a first opening at a first end and a second opening at a second end opposite the first end, and a circumferential recess disposed in the second end, wherein the inner hinge pivotably connects the door to the body at the first end and a second valve portion made from a second material, the second valve portion including an inner seal disposed in the circumferential recess, the inner seal including a circumferential ridge extending inwardly, the second valve portion further including a door seal disposed on the first end of the body. | 04-14-2011 |
20110095219 | FLAP TRANSFER VALVE WITH VALVE COVER - A flap transfer valve is disclosed. An elongated first opening can be closed by an elongated valve closure beam between a closed position and an open position. A shaft can be rotated about a shaft axis by a drive and is operatively connected to the valve closure beam to cause the valve closure beam to pivot. The valve closure beam, the pivoting bearing and the shaft are arranged on a valve cover in a gas-tight valve housing. The shaft, the pivoting bearing and the valve closure beam can be decoupled from the valve housing. The pivoting bearing is formed by at least three bearing elements which are distributed at a distance from one another along the shaft axis in the valve housing, and on which the valve closure beam and the shaft are mounted. The shaft axis is at a distance from the pivoting axis. | 04-28-2011 |
20110095220 | FLAP TRANSFER VALVE WITH PIVOTING BEARING - A flap transfer valve is disclosed. An elongated first opening can be closed by an elongated valve closure beam, which can be pivoted via a pivoting bearing between a closed and open position. A shaft can be rotated by a drive and is operatively connected to the valve closure beam such that rotation of the shaft causes the valve closure beam to pivot. The pivoting bearing is formed by at least three bearing elements which are distributed at a distance from one another along the shaft axis in the valve housing, and on which the valve closure beam and the shaft are mounted. The shaft axis is at a distance from the pivoting axis. First arms are arranged on the shaft to provide a force to the rear face of the valve closure beam to pivot the valve closure beam. According to one development of the invention, the valve closure beam, the pivoting bearing and the shaft are arranged on a valve cover in a gas-tight valve housing, wherein the shaft, the pivoting bearing and the valve closure beam can be decoupled from the valve housing. | 04-28-2011 |
20110140022 | VALVE ASSEMBLIES INCLUDING CORRUGATED FLOWBODY AND METHOD FOR THE MANUFACTURE THEREOF - Embodiments of a flapper valve assembly are provided. In one embodiment, the flapper valve assembly includes a flowbody, a flapper valve element, and an elongated stiffening rib formed in the flowbody. The flowbody includes a generally flat plate portion, and an arcuate portion adjacent the generally flat plate portion. The flapper valve element is hingedly coupled to the flowbody proximate the generally flat plate portion. The elongated stiffening rib extends from the generally flat plate portion to the arcuate portion to distribute mechanical stress and to reduce deflection of the flowbody during pressure loading. | 06-16-2011 |
20110140023 | WATER COOLED VALVE - A lock valve is adapted for locking a process chamber. The lock valve includes a valve flap adapted for sealing an aperture of the process chamber where a substrate to be processed may be inserted or ejected. A cooling unit is adapted for cooling the valve flap by means of a cooling fluid. At least one valve flap hinge is adapted for connecting the process chamber with the valve flap. The valve flap hinge furthermore includes at least one pipe in fluid communication with the cooling unit of the valve flap. | 06-16-2011 |
20110147633 | AIR INLET VALVE FOR AN AIRPLANE AND MANUFACTURING METHOD FOR AN AIR INLET VALVE - The present invention provides an air intake valve for an aircraft and a method for the production of an air intake valve. The air intake valve has an opening region for letting ambient air through into a fuselage inner region of the aircraft and a flap for opening and closing the opening region, the opening region and the flap each having a shape which is capable of forming air vortices on edges of the opening region when ambient air flows through the air intake valve. | 06-23-2011 |
20120168658 | VALVE HAVING AN ABLATED FLAP | 07-05-2012 |
20130020520 | CHECK VALVE - A top entry check valve including a valve body with an access port and clapper assembly with a compressible hanger positioned in alignment with the access port. The compressible hanger comprises a plate member stamped from a sheet of metal having at least one dimple formed in one of the upper side and the lower side and a corresponding protuberance formed on an opposing side so as to define a compressible area. A clapper is connected to the hanger so that the clapper is movable between a closed position and an open position. A closure member has an abutment surface engaging the hanger so that the hanger body is compressed between the closure member and the valve body. | 01-24-2013 |
20130037737 | DISC ASSEMBLY FOR A VALVE AND METHOD OF MAKING THE SAME - A shutoff valve, e.g., an engine shutoff valve, is provided which includes a valve body having a fluid, e.g., air, passage and a disc assembly. The disc assembly is pivotable within the fluid passage from an open position to provide for free flow of fluid through the passage, to a closed position to provide a substantially closed off the fluid passage. The disc assembly includes a front disc, a rear disc, and a seal, e.g., a spring energized PTFE seal, disposed between the front disc and the rear disc. The front disc is permanently secured, e.g., welded, soldered or brazed, to the rear disc such that the seal is captured between the front disc and the rear disc. | 02-14-2013 |
20130153803 | FLUID VALVE - The invention relates to a fluid valve comprising: a body ( | 06-20-2013 |
20130168588 | PRESSURE RELIEF VENTING FOR A VALVE DISK SEAL - A valve (e.g., shutoff or regulating) is provided including a valve body having a fluid passage and a disc assembly. The disc assembly is pivotable within the fluid passage from an open position wherein the disc assembly is positioned within the fluid passage to provide for free flow of fluid through the fluid passage, to a closed position wherein the disc assembly is positioned within the fluid passage to substantially close off the fluid passage. The disc assembly includes a disc having a circumferential edge having a groove. A seal (e.g., an O-ring) is disposed in the groove. A pressure relief mechanism (e.g., a plurality of apertures) is provided adjacent to the seal to partially relieve differential pressure on the seal caused by fluid passing through the fluid passage. A similar valve having its seal located on the valve body is also provided. | 07-04-2013 |
20130277592 | FLUIDIC CONTROL ELEMENT - A fluidic control element comprises a housing composed of at least two housing parts, a fluid space being formed between the housing parts and at least first and second flow channels each comprising a sealing seat opening into said fluid space, and a valve body defined by a two-armed lever which can be swiveled in the fluid space and defines a combined sealing and actuating element, each arm of the lever being capable of closing and opening its associated flow channel in a corresponding end position. The valve body has a load-carrying core including a shaft mounted in the housing and an elastic sealing sheath surrounding the core in sections, the shaft being embedded in the sealing sheath at least in the region of its mounting in the housing. The sealing sheath comprises a formed-on sealing ring which is clamped between the housing parts and surrounds the lever arms. The shaft is rounded at least in the region in which it is embedded in the sealing ring and adjoins the sealing ring. | 10-24-2013 |
20140054482 | FLAPPER DRAIN VALVE ADJUSTING STRUCTURE - Disclosed is a flapper drain valve adjusting structure including at least two installation positions disposed at connecting positions of a flapper body and a swinging link rod, a rotating shaft with its axis perpendicular to an arrangement direction of at least two installation positions and a barrier block installed at the boundary of two adjacent installation positions to prevent the swinging link rod from moving horizontally between the adjacent installation positions, and a claw buckle installed on the swinging link rod and detachably and rotably latched onto the rotating shaft. This structure changes the conventional adjusting method and uses the fixed barrier block to separate the adjacent installation positions without the problem of worrying about the precision and structure and adopts the detachable claw buckle to provide a convenient way of replacing the claw buckle that may be damaged after a long time of use. | 02-27-2014 |
20150014566 | FLUID CIRCULATION VALVE - The invention relates to a fluid circulation valve ( | 01-15-2015 |
20150354709 | Valve Device - To provide a valve device which can maintain the engagement relation between a rod mechanism and a valve mechanism even when the range of advance/retraction of the rod mechanism increases, as well as can achieve downsizing of the entire valve device. In a valve device | 12-10-2015 |
20160003198 | FLAP DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A flap device for an internal combustion engine includes a flow housing comprising a flow channel, an actuating shaft, a flap body arranged on the actuating shaft in the flow channel, a housing bore arranged in the flow housing, a lever fixed on the actuating shaft, a bearing bush arranged in the housing bore, and a sealing disk comprising a surface which is at least partially spherically shaped. The housing bore has the actuating shaft protrude outwards therethrough. The lever comprises a rear wall. The bearing bush has the actuating shaft mounted therein. The surface rests under tension against the rear wall of the lever. | 01-07-2016 |
251299000 | Terminal | 2 |
20150076383 | GRID FLAP - The invention relates to a grid flap ( | 03-19-2015 |
251300000 | Gate | 1 |
20160161007 | Gate Valve - A valve gate button is disclosed comprising a contacting face for sealing a port of a valve seat, wherein the contacting face is flat and has a substantially straight flow control edge. A valve gate is disclosed, comprising the valve gate button. A valve is disclosed comprising the valve gate button or valve gate. | 06-09-2016 |
251301000 | Gate | 24 |
20080302992 | STOP VALVE WITH FILTER - The interior of the stop valve is partitioned into an upper chamber where the valve mechanism is installed and a lower chamber where a filter is provided. The two chambers are conducted via a through hole of the partition and are connected to two lateral tubular sockets of the stop valve, respectively. The stop valve can further contain a locking mechanism to securely connect a pipe to the stop valve. The locking mechanism mainly contains a tubular element that can be screwed into a tubular socket and a rubber ring washer at the interface between the pipe and a chamber of the stop valve. | 12-11-2008 |
20090146093 | Ball Valve Housing Seat and Method of Securing the Same to a Ball Valve - A valve comprises a housing, an annular housing seat, and a gate. The housing comprises a fluid inlet and a fluid outlet. The housing seat is fixed in position relative to the housing via epoxy. The gate comprises a gate seat and a fluid passageway that extends through the gate. The gate is movable relative to the housing between an open position and a closed position. The gate is also configured to allow fluid to flow from the fluid inlet through the fluid passageway to the fluid outlet when the gate is in the open position, and configured such that the gate seat engages the housing seat in a manner preventing fluid from flowing from the fluid inlet to the fluid outlet when the gate is in the closed position. | 06-11-2009 |
20090230342 | GATE VALVE AND SEMICONDUCTOR MANUFACTURING APPARATUS - A gate valve of a semiconductor manufacturing apparatus, which is formed between a processing chamber in which processing is performed and a transfer chamber which carries a substrate on which the processing is performed, includes a gate valve at a side of the processing chamber; a sealing member which is formed in the gate valve at the side of the processing chamber; a gate valve at the side of the transfer chamber; a sealing member which is formed in the gate valve at the side of the transfer chamber; and a thermal insulator which is formed between the gate valve at the side of the processing chamber and the gate valve at the side of the transfer chamber. | 09-17-2009 |
20090302257 | VACUUM SEALING SYSTEM AND DEVICE - An apparatus for a gate valve between chambers includes a valve housing defining a flow path. A male valve portion is rotatable on a fixed axis in the housing. The male valve portion including a first male mating surface positioned at a first angle less than perpendicular to the axis. A female valve portion is fixed in the valve housing for receiving the male portion. The female valve portion including a first female mating surface positioned at a second angle matching the first angle. An o-ring seals the male valve portion to the female valve portion when the male valve portion is rotated into the female valve portion. A polished surface contacts the o-ring when the male valve portion is rotated. When the male valve portion is rotated into the female valve portion the o-ring is compressed thereby sealing the gate valve and closing the flow path. | 12-10-2009 |
20100171059 | VALVE - Disclosed is a valve comprising a body, which has a fluid inlet port and a fluid outlet port, a flow path formed therein communicated with the fluid inlet port and the fluid outlet port, and a valve seat formed in the flow path; and a valve body, which is attached to or detached from the valve seat by pivotal or vertical motion, thereby closing or opening the flow path; wherein at least the body is made of a polyphenylene ether-based resin composition containing a polyphenylene ether-based resin and a polystyrene-based resin as essential components. Another feature is that the polyphenylene ether-based resin composition has a tensile strength of 20 MPa or more and a tensile elastic modulus of 1,000 MPa or more under an atmosphere at 95° C. | 07-08-2010 |
20100187460 | Fluid Selection Valve Unit, Exhaust Gas Control Valve Having the Same, and Waste Gate Valve Having the Same - A fluid selection valve unit is provided which is applicable to an exhaust gas control valve, a waste gate valve, or the like provided between a high-pressure-stage supercharger and a low-pressure-stage supercharger of a two-stage supercharging exhaust turbocharger so as to control an amount of exhaust gas supplied to the high-pressure-stage supercharger and the low-pressure-stage supercharger, and which is capable of improving control performance of a valve in such a manner that a passage area gently varies with respect to an opening degree of a valve member so as to minutely control an exhaust gas amount by using the opening degree of the valve. In a fluid selection valve unit including: a valve seat provided in a fluid passage; and a valve member of which one end is supported to a rotary shaft so as to be rotatable about a shaft center of the rotary shaft in a direction moving away from the valve seat, the valve seat includes a side surface having a predetermined depth and a bottom surface continuous to the side surface, the valve member includes a bottom portion and a side end surface formed above the bottom portion, and the valve member is configured so that a passage area of a gap formed between the side end surface of the valve member and the side surface of the valve seat is smaller than a contact passage area formed between the bottom portion of the valve member and the bottom surface of the valve seat during a time when the bottom portion of the valve member comes into contact with the bottom surface of the valve seat by the rotation of the rotary shaft, and the rotary angle increases up to a predetermined value of the rotary angle. | 07-29-2010 |
20100200792 | RAIN HAT DEVICE FOR HEAVY CONSTRUCTION EQUIPMENT - A rain hat device for heavy construction equipment which is installed adjacent to an exhaust gas discharging port of a distal end portion of an exhaust pipe to prevent inflow of rainwater therein is disclosed. The rain hat device comprises a swing cover installed at a distal end portion of the exhaust pipe in a spaced and floated state so as to prevent rainwater from flowing in the distal end portion of the exhaust pipe, and in which the swing cover does not come into contact with the distal end portion of the exhaust pipe to prevent noise from being generated due to contact and collision when an engine stops or exhaust gas is not discharged. | 08-12-2010 |
20100243937 | Valve - A housing having at least one valve seat for at least one flap, which is supported so it can rotate on a drive shaft. The drive shaft is guided on at least one side through the housing, a sleeve, through which the drive shaft is rotatably guided, being disposed fixed in place on the inside of the housing in this area. The sleeve has a first area, which faces the flap and encloses the drive shaft with a first slight play. Furthermore, the sleeve has a second area, which faces away from said flap and has a diameter expansion in comparison to the first area and which, on the front side thereof facing away from the flap encloses the drive shaft with a second slight play. Furthermore, the valve is a gas recirculation valve of a motor vehicle. | 09-30-2010 |
20100314570 | ROTARY GATE VALVE WITH SECONDARY SEAL - A rotary gate valve includes a gate which rotates above a process flow axis within a pipeline. The gate valve includes a first and second opposing housing members each having coaxial pathways and defining a gate channel when the housing members are joined together. A gate is positioned within the gate channel when the valve is in a closed position to prevent media from flowing through the pathways and rotationally displaced from the channel when the valve is in an open position to allow media to flow through the pathways. A first annular primary sealing sleeve is disposed within the first housing member and a second annular primary sealing sleeve is disposed within the second housing member. Each of the first and second annular primary sealing sleeves is adapted to sealingly engage each other under compression when the valve is in the open position, and with the gate when the valve is in the closed position. A secondary sealing member is disposed around an upper portion of the gate and secured between the housing members above the first and second annular primary sealing sleeves to prevent process media from entering the housing members. | 12-16-2010 |
20110006235 | Retractable and expandable valve gate - A pendulum gate valve including an expandable gate which pivots when unexpanded to selectively block a vacuum or other pressure-differential passage. The valve includes a valve plate sealing one side of the passage and a ring abutting an opposed side of the passage when the gate member is expanded. A compression spring biases apart the valve plate and ring to close the valve by means of respective two-stage hangers attached thereto, extending along the spring, and having distal ends capturing the spring. Pneumatic pressure applied to a pneumatic cavity formed between the middles of the two-stage hangers and accommodating the spring forces apart the valve plate and ring to open the valve in the blocking position. Thereby if pressure fails, the valve fails to a sealed state. The axially movable valve plate is advantageously water cooled to allow use with a heated processing chamber. | 01-13-2011 |
20110006236 | Retractable and expandable water cooled valve gate useful for sealing a hot processing chamber - A pendulum gate valve including an expandable gate which pivots when unexpanded to selectively block a vacuum or other pressure-differential passage. The valve includes a valve plate sealing one side of the passage and a ring or barrier plate abutting an opposed side of the passage when the gate member is expanded. A compression spring biases apart the valve plate and ring to close the valve by means of respective two-stage hangers attached thereto, extending along the spring, and having distal ends capturing the spring. Pneumatic pressure applied to a pneumatic cavity formed between the middles of the two-stage hangers and accommodating the spring forces apart the valve plate and ring to open the valve in the blocking position. Thereby if pressure fails, the valve fails to a sealed state. The axially movable valve or barrier plate is advantageously water cooled to allow use with a heated processing chamber. | 01-13-2011 |
20110175007 | BACKFLOW PREVENTION DEVICE, ELECTRONIC APPARATUS, AND METHOD FOR PRODUCING BACKFLOW PREVENTION DEVICE - A backflow prevention device includes a plurality of flaps and a frame case for rotatably supporting the flaps. The flaps are opened by airflow supplied from a cooling fan and closed by gravity when the airflow stops. The backflow prevention device also includes a connecting member for connecting between the flaps. The connecting member serves to open the flaps at the same angle or close them simultaneously in response to changes in the amount of airflow supplied by a cooling fan in a manner such that the flaps are cooperatively opened or closed. | 07-21-2011 |
20110186761 | Gate valve - A gate valve includes a valve member and a valve plate. The valve member includes an opening. The valve plate is capable of sealing the opening, and is further capable of moving a proper distance and rotating a proper angle relative to the opening so as to open or seal the opening. | 08-04-2011 |
20120061601 | GATE VALVE - A high temperature gate valve including a valve body formed to define first and second ports and an exit, each of which has a length-wise dimension greater than a height-wise dimension, and a door, having a length-wise dimension greater than a height-wise dimension, coupled to the valve body to occupy and move between positions at which the door prevents fluid communication between one of the first or the second port and the exit and intermediate positions at which fluid communication between the first and the second port and the exit is permitted. | 03-15-2012 |
20120181467 | WEAR INTERFACE FOR BUTTERFLY VALVE - A butterfly valve comprises a housing including a bore, a rotatable shaft passing through the bore, a disc mounted to the shaft for controlling the flow of a fluid through the bore, a thrust load reacting section and a wear interface. The thrust load reacting section includes a thrust plug assembled in a thrust reacting end of the shaft and a thrust plate secured to the housing. The thrust plate has a well for axially retaining the thrust plug and the thrust reacting end of the shaft. The wear interface includes a first contact region on the thrust plug with a first contact surface and a second contact region at the base of the well with a second contact surface. A portion of the first contact surface is spherical and in contact with a portion of the second contact surface. | 07-19-2012 |
20120211689 | INLET CONTROL VALVES FOR USE WITH FUEL DELIVERY SYSTEMS - Inlet control valves for use with fuel delivery systems are described. An example inlet control valve includes a first body portion having a first coupling to define an inlet of the control valve and one of a plurality of fasteners or a plurality of slots opposite the inlet. A second body portion coupled to the first body portion to define a fluid flow passageway, where the second body portion has a second coupling to define an outlet of the control valve and the other one of the plurality of fasteners or the plurality of slots opposite the outlet. The first plurality of slots receives the first plurality of fasteners when the first body portion is coupled to the second body portion. A valve is pivotally coupled relative to the first and second body portions to control fluid flow through the passageway. | 08-23-2012 |
20120267556 | GATE VALVE - In a gate valve including a valve plate connected to a valve plate mounting portion of at a tip end of a valve rod with a connecting plate and configured to open and close a communicating hole of a valve box with the valve plate, the valve plate includes a mounting hole, a joint flat surfaces coming into press-contact with each other, the valve rod includes a depressed-shaped joint shoulder portion, the joint shoulder portion is formed with an inclined surface configured to guide the valve plate in the direction in which the joint flat surfaces are brought into press-contact with each other, and the coupling plate couples the valve plate and the valve rod with each other. | 10-25-2012 |
20130248746 | OBJECT-SENSING VALVE FOR A VACUUM GRIPPER - An object-sensing valve configured for integration in the suction duct ( | 09-26-2013 |
20140048733 | Double Flap Valve with Quick-Change Replaceable Wear Surface - A flap-gate valve having a replaceable wear surface, methods of replacing a wear surface with a replacement wear surface, and methods of retrofitting an existing flap-gate valve with components adapted to work in conjunction with a replaceable wear surface. | 02-20-2014 |
20140264122 | FLUID VALVE - Described herein is a fluid valve assembly includes a body that defines a fluid cavity. The body includes an inlet through which fluid enters the fluid cavity and an outlet from which fluid exits the fluid cavity. The fluid valve assembly includes at least one arm rotatably coupled to the body and positioned within the fluid cavity. Additionally, the fluid valve assembly includes a flap coupled to the at least one arm. The flap includes a domed portion and a flat portion extending radially outwardly away from the domed portion. | 09-18-2014 |
20150323080 | ENGINE CONTROL VALVE WITH IMPROVED SEALING - The invention relates to an engine control valve including a body defining an inner duct and comprising a flap ( | 11-12-2015 |
20160040788 | SLIDE VALVE - A slide valve comprises: a casing having a pair of facing flow channels; a slide plate inserted into and removed from a space between the flow channels; and an annular sealing body slidingly moving in a facing direction of the flow channels inside the casing and coming into contact with the slide plate inserted between the flow channels to bring the slide valve into a closed state. A first sealing member sealing a gap between the sealing body and the inner peripheral wall surface is disposed on an inner peripheral surface of the annular sealing body and a second sealing member sealing a gap between the sealing body and the outer peripheral wall surface is formed on an outer peripheral surface of the annular sealing body. | 02-11-2016 |
251302000 | Bifaced | 2 |
20140264123 | MIXED MEDIA ORBITAL VALVE - Embodiments of the invention described herein thus provide improved flush valves that are designed with improved venting features and improved inlet designs. The described venting features and inlet designs, either alone or in combination, can help prevent ingestion of waste into the interior of the valve. | 09-18-2014 |
20160053898 | MIXED MEDIA ORBITAL VALVE - Embodiments of the invention described herein thus provide improved flush valves that are designed with improved venting features and improved inlet designs. The described venting features and inlet designs, either alone or in combination, can help prevent ingestion of waste into the interior of the valve. | 02-25-2016 |
251303000 | Biased | 4 |
20090194725 | Liquid Purge Valve - A liquid purge valve comprising a housing for sealingly fitting at an uppermost end of a substantially vertical pipe, an outlet tube extending from the housing and projecting into the pipe, an outlet port fitted with a sealing boundary and sealable by a sealing member pivotally secured within the housing so as to pivotally displace between a closed and an open position, a biasing member biasing the sealing member into its open position, and a mass articulated to the sealing member and extending downwards into the pipe. The mass applies a force at an opposite direction of the biasing member such that the resultant force acting on the sealing member determines its position such that when water level rises within the pipe the sealing member displaces into the open position. | 08-06-2009 |
20110108749 | DYNAMIC FLAPPER AND METHOD - An adjustable moment arm flapper including a flapper defining a cavity there within and a moveable mass system disposed within the cavity, a center of mass of the flapper changeable based upon position of the movable mass and a method for dynamically controlling a flapper. | 05-12-2011 |
20110186762 | FLAP TRANSFER VALVE WITH PIVOTABLE VALVE CLOSURE BEAM - A flap transfer valve is disclosed for the transfer of semiconductor elements or substrates into a semiconductor or substrate processing process chamber having an elongated first opening, which is surrounded in the form of a frame by a first sealing surface on a first sealing plane, and an elongated valve closure beam, having a second sealing surface which corresponds to the first sealing surface, can be brought into gas-tight contact with it, and is located on a second sealing plane. A support is arranged on the rear face of the valve closure beam, which is arranged such that it can pivot through a limited pivoting angle about a tilting axis. The support together with the valve closure beam can pivot about a pivoting axis, which lies on the first sealing plane, and the tilting axis lies on the second sealing plane. | 08-04-2011 |
20120153205 | DEVICE FOR REGULATING THE FLOW OF MATERIALS INTO AN ENCLOSURE OR CONDUIT AND A SYSTEM AND APPARATUS INCLUDING SAID DEVICE - The device of the invention for regulating the passage of adherent or tacky materials to an enclosure comprises:
| 06-21-2012 |