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| Number | Title | Issue Date |
| 8104505 | Two-way actuator and method Disclosed herein is a two-way actuator. The actuator includes, a tubular, movably positionable within a structure between at least a first position and a second position, the tubular having a first density selected such that buoyancy forces urge the tubular toward t... | 01/31/2012 |
| 7748404 | Multi-purpose exhaust valve spring An exhaust valve includes a valve body that is fixed for rotation with a shaft supported by at least one bushing. A single spring is used to bias the shaft to hold the valve body in a valve closed position, and to exert an axial load on the shaft to seal the shaft a... | 07/06/2010 |
| 7600534 | Valve closing device An apparatus capable of moving a shiftable valve member into a closed position, the shiftable valve member mounted in a valve housing having a bore and being moveable between at least one open and at least one closed position relative to the bore, includes at least ... | 10/13/2009 |
| 7395633 | Rainwater collection and diverging system A rainwater collection and diverging system includes a housing that has a bottom wall and a perimeter wall. A door is positioned in the bottom wall. A hinge hingedly couples the door to the bottom wall and a biasing member is attached to the door and biases the door... | 07/08/2008 |
| 7370675 | Flow conditioner for a fluid transport pipe The flow conditioner for a fluid transport pipe, comprises a support-forming substantially tubular main body, at least one flow rectifier disposed inside the main body essentially perpendicularly to the axis XX′ thereof, and a porous plate disposed inside the main... | 05/13/2008 |
| 7357023 | Modular inserts comprising check valves for flow meters The present invention relates to an apparatus and method for upgrading fluid meters with improved modular check valve technology. The check valve module is secured within the meter using only external fasteners. The check valve module may also include a seal. The se... | 04/15/2008 |
| 7311740 | Snap acting split flapper valve A filter bypass valve is disposed in parallel with an aircraft cabin air filtration system air filter. During normal operation, air is filtered through the air filter at an air flow that meets air flow requirements of the system. The bypass valve is designed to rema... | 12/25/2007 |
| 7284971 | Hermetic compressor A hermetic compressor comprising a discharge valve, and a stopper for restricting an opening degree of the discharge valve. The discharge valve includes a body portion configured to cover a discharge port formed at a valve plate, and a first protrusion extending fro... | 10/23/2007 |
| 7284565 | Fluid flow regulator for swimming pool cleaning system A fluid flow regulator useful with swimming pool suction cleaners includes a flow passage conduit for connection between a suction pump and the pool cleaner. A flow bypass conduit is connected to the flow passage conduit for injecting an ambient fluid into a bypass ... | 10/23/2007 |
| 7275560 | Pressure relief door for air duct work A pressure relief door system for use in a duct for relieving positive or negative pressure within the duct includes a frame to be mounted in the duct; a gasket in the frame; a hinged door mounted on the frame and sealing against the gasket; and an adjustable pressu... | 10/02/2007 |
| 7275564 | Pigging ball valve A pigging ball valve with a housing and ball core supported for rotation within the housing. The ball core sits on a valve seat, which is supported by a seat carrier. The valve seat carrier has three distinct diameters that locate the seat in the housing and thus pr... | 10/02/2007 |
| 7270191 | Flapper opening mechanism Methods and devices for operation of a flapper valve. A valve assembly is described with a flapper element and a valve opening assembly that will mechanically open the flapper element. The valve opening assembly is particularly valuable where the flapper element fai... | 09/18/2007 |
| 7240378 | Flange valve A flange valve to deter entry of rodents and pests, insertable on existing devices, comprising a unidirectional swinging door attached on an inner wall of a frame, the door and the inner wall of the frame having a clearance between them of a dimension not allowing e... | 07/10/2007 |
| 7195032 | Unidirectional, adjustable flap valves The invention provides a flap valve for controlling the air pressure within a protected space defined by walls, the flap valve including a valve frame attachable to an opening made in the walls, a valve flap, articulated at least indirectly to the frame and being su... | 03/27/2007 |
| 7137405 | Low pressure check valve A check valve for preventing backflow of media including a valve movably coupled to a carrier body, the valve including a flexible membrane disposed therein such that the flexible membrane flexibly engages an aperture in the carrier body to prevent backflow of media... | 11/21/2006 |
| 7128090 | Water-hammer preventing unit for check valve In a water-hammer preventing unit for a check valve according to the present invention, a retainer pipe having openings at two edges thereof is provided inside a short pipe to form a circular space with the short pipe, and openings are formed on this retainer pipe. ... | 10/31/2006 |
| 7117745 | Process seal for process control transmitter A process control instrument for coupling to a process is attachable to a metal flange. The flange has a first passageway adapted to be filled with process fluid. The process control instrument includes a body having an opening adjacent to the first passageway for r... | 10/10/2006 |
| 7108010 | Check valve position detector A position detector for a check valve, including a bracket with a support arm, adjustable securing members adapted to rigidly secure the bracket to a check valve arm, a tilt switch, a connector, a circuit status indicator, a wire connector for both the tilt switch a... | 09/19/2006 |
| 7083400 | Valve arrangement for a small hermetic compressor A suction and discharge valve arrangement for a small hermetic compressor of the type presenting a compression cylinder (1), which has an end closed by a valve plate (10) and which has a suction pipe (5) adjacent to the valve plate (10) a... | 08/01/2006 |
| 7080558 | Process seal for process control transmitter A process seal for a process control transmitter is provided. The seal includes a contact region which provides a metal to metal seal against a coupling flange. ... | 07/25/2006 |
| 7077742 | Pressure relief valve and method of forming the same A pressure relief valve (10) includes a housing (12) with a peripheral side wall defining at least one central airflow passage and at least one flap valve element (14). The housing (12) and the flap valve element (14) have a molded... | 07/18/2006 |
| 7024945 | Flow sensing apparatus A flow sensing apparatus for detecting fluid flow rate and direction is described. The flow sensing apparatus includes a flow-responsive element projecting into the fluid flow path, and a position sensor which detects the degree and direction of any change in positi... | 04/11/2006 |
| 7021386 | Safety valve having extension spring closure mechanism A safety valve having an extension spring closure mechanism. In a described embodiment, a valve for use in a subterranean well is provided which includes a biasing device and a closure member having open and closed positions. The biasing device has a length which de... | 04/04/2006 |
| 7014433 | Shaped valve seats in displacement compressors A valve assembly including a valve seat and a valve member movable relative to the valve seat between an open position and a closed position and defining in the closed position a high pressure side and a low pressure side, the valve member further being deformable t... | 03/21/2006 |
| 7004194 | Check valve with pressure relief feature A check valve has a valve body and flapper. The flapper has a gasket which is sandwiched between a flapper base and a flapper cover. The flapper base has a flapper base stem which extends through an aperture in the gasket is retained within an aperture in the flappe... | 02/28/2006 |
| 6986360 | Valve for inflatable objects A self-sealing valve comprises a valve housing having a fluid conduit, a valve seat, a flexible diaphragm and a support member. The valve housing is configured to pass fluid through the fluid conduit. The flexible diaphragm provides a self-seal of the fluid conduit,... | 01/17/2006 |
| 6974122 | Gates for throttle valves Gate for throttle valves composed of a central supporting portion constituted by a thermoplastic material and an edge portion constituted by a thermoplastic elastomeric material belonging to the same chemical family as the thermoplastic material; the gate is produce... | 12/13/2005 |
| 6948526 | Valve mounting assembly for voice prosthesis-cartridge and ring The valve mounting system of the invention incorporates a hard cartridge with a grove on its outer, distal surface and a slot communicating distal from the end of the cartridge with the grove and a specially configured elastomeric valve attached to an outer band wit... | 09/27/2005 |
| 6932100 | Flapper type fill tube check valve A flapper valve for push-in snap-lock attachment to a spud to be welded to a fuel tank and attached to a flexible filler tube hose. The flapper has an annular flexible seal overmolded thereon, preferably of elastomeric material. The flapper has a pair of trunnions, ... | 08/23/2005 |
| 6915896 | Cleaning drain apparatus for an auger assembly A drain apparatus for the intake end of an auger is disclosed. The drain apparatus comprises a bearing with radial arms, a cover with a cover portion, a drain and a drain cap for removably closing the opening of the drain. The drain apparatus facilitates a clean in ... | 07/12/2005 |
| 6901954 | Safety relief valve A safety relief valve is provided for use in association with a liquid storage tank. The safety relief valve generally includes a valve base, a valve seal plate, a hinge mechanism and a lever mechanism. The valve seal plate is pivotally coupled to the valve base by ... | 06/07/2005 |
| 6883317 | Adjustable turbocharger wastegate controller suitable for after-market installation An adjustable turbocharger wastegate controller suitable for after-market installation is disclosed. The invention makes use of the existing factory wastegate mechanism to form a fully adjustable turbine-inlet pressure relief. The factory wastegate valve assembly an... | 04/26/2005 |
| 6810920 | Fuel drip prevention method The novel use of a one-way valve (13) to prevent drips of fluid such as fuel from a fluid delivery conduit after an intended flow shut-off is disclosed. At least one embodiment involves the use of a biased, one way valve that is reconfigurably responsive to a... | 11/02/2004 |
| 6796327 | Check valve with multiple doors A check valve having a faceplate and an insert assembly. The faceplate and insert assembly have a stepwise cross-section in the direction of a forward fluid flow through the check valve. The stepwise cross-section is designed for placement of the faceplate and inser... | 09/28/2004 |
| 6789568 | Fluid flow control mechansim A fluid flow control mechanism includes a crossover fuel assembly which controls fuel flow between tanks such that an engine fuel intake pipe remains submerged. It is for a work vehicle with a fuel system which has two tanks, three flexible couplings, a tube assembl... | 09/14/2004 |
| 6789575 | High efficient valve assembly of compressor A high efficient valve assembly of a compressor has a valve plate having more than one discharging valve; a discharging valve for opening and closing the discharging valve, one end of the discharging valve is settled at the valve plate between the valve plate and a ... | 09/14/2004 |
| 6782916 | Flapper valve system A fuel system for a work vehicle such as a tractor includes a pair of fuel tanks located on either side of the vehicle that are connected by a cross feed fuel line. The fuel line permits fuel to flow from both tanks to a common fuel suction line, which, in turn, fee... | 08/31/2004 |
| 6755208 | Valve for inflatable objects A self-sealing valve for controlling the volume of fluid within an inflatable device. The valve includes a housing having a fluid conduit, a valve seat and a valve assembly that selectively seals the fluid conduit to provide a self-seal. The valve assembly includes ... | 06/29/2004 |
| 6736160 | Valve structure for engine exhaust system A support member 10 having a tubular portion 11 is joined at an end portion of a muffler pipe 1. The support member 10 forms a flange 12 as a valve seat and a support bracket 14. The support bracket 14 has a valve dis... | 05/18/2004 |
| 6705593 | Valve closing device An apparatus capable of moving a shiftable valve member into a closed position, the shiftable valve member mounted in a valve housing having a bore and being moveable between at least one open and at least one closed position relative to the bore, includes at least ... | 03/16/2004 |
