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Match Document Document Title
9010363 Drain valve  
A drain valve allows for drainage of fluids while preventing backflow of gases from a drainage system through the drain valve. A drain valve can have a first, sealed position in which a component...
8967189 Hollow valve plate  
The hollow valve plate 1 of a piston compressor for liquid-cooled reed valves comprises a single half-shell 3 with cooling channels 4 which are open on the cylinder side, which said half-shell is...
8951026 Poppet valve assembly  
A novel valve assembly is provided. In one embodiment, the valve assembly includes a seat plate having a plurality of fluid conduits. The valve assembly may also include a plurality of poppet...
8944098 Airflow restricting valve assembly  
A valve assembly is disposed within a water supply line upstream of a water meter or other delivery location and is structured to eliminate or significantly reduce the passage of air there through...
8887871 Check valve of cylinder head  
A check valve of a cylinder head controls an oil supply amount to the cylinder head according to oil pressure of a hydraulic pump. The check valve of the cylinder head according to the exemplary...
8876017 Variable flow screen nozzle  
A variable flow control nozzle has a head, a tube, and a valve. The head disposes adjacent an opening and has a screen for passage of fluid flow into and out of the head's interior. The tube...
8869828 Check valve with self-trapping insert  
A check valve is provided and includes a body including a seat, a hinge bifurcating the seat to define openings and a housing coupled to the hinge and a self-trapping insert of compliant material....
8844563 Dual plate check valve  
A check valve in which a stop pin assembly is situated so as to prevent the movement of a flapper beyond a predetermined position. In a preferred embodiment the check valve has two flappers with...
8800596 High opening velocity check valve  
A check valve housing is provided and includes a base having opposite sides which are configured to form linear contact surfaces with check valve flappers pivotably disposed on either side of the...
8726930 Dual disk check valve with slotted stop bar  
A dual disk check valve is provided and includes a mechanical stop. The mechanical stop has a central portion and includes bars disposed in the central portion. The bars have substantially...
8714190 Metal plate for dual plate check valve  
A metal plate for a dual plate check valve includes a substantially circular segment shaped plate member of a predetermined substantially uniform thickness and is pivotally mounted to enable...
8689824 Disc check valve construction  
A check valve construction is provided having: a movable disc with a flat surface on a first side and a convex shaped surface on the opposing side, a first seat on for the flat surface and a...
8684030 Inflatable device with fluid controller and self-sealing valve  
A self-sealing valve comprises a valve housing having a fluid conduit, a valve seat, and a retaining member, the valve housing being configured to pass fluid through the fluid conduit, and a...
8668168 Space vehicle valve system  
The present invention is a space vehicle valve system which controls the internal pressure of a space vehicle and the flow rate of purged gases at a given internal pressure and aperture site. A...
8596994 Compressor  
A compressor includes a compressing mechanism, a discharge chamber, a housing accommodating the compressing mechanism and the discharge chamber, a discharge port communicating with the discharge...
8485801 Poppet valve assembly  
A novel valve assembly is provided. In one embodiment, the valve assembly includes a seat plate having a plurality of fluid conduits. The valve assembly may also include a plurality of poppet...
8453670 Poppet valve with sloped purge holes and method for reducing a pressure force therein  
A poppet valve is disclosed that includes a valve body, a poppet guide disposed inside the valve body so as to form a flow passage from an inlet to an outlet of the valve, a poppet shutter...
8413277 Pneumatic lift with unidirectional valve  
A pneumatic lift including inflatable mattresses stacked one atop another and arranged in air flow communication with one another, but with each being independently deflatable.
8414368 Fan damper  
A damper assembly for use with an axial fan to prevent air from entering the discharge side of the fan when the fan is at idle. The damper assembly includes a damper door having multiple sections....
8408864 Device for regulating the flow rate of air feeding a turbine ventilation cavity of a turbomachine turbine section  
A device for regulating the flow rate of air feeding a turbine ventilation cavity of a turbomachine turbine section is disclosed. The device includes at least one tubular duct opening into a...
8353311 Anti-flooding device  
An anti-flooding device (10) including a duct (12) for passage of a flow of liquid, and a limiter (14) inserted along the duct (12) for passage of liquid and defining a section for passage of the...
8302622 Unbalanced inlet fuel tube for a fuel pressure regulator  
A pressure regulator (10) includes a fuel tube (30) having an inlet end (35), an outlet end (180), and a fuel chamber (40). The outlet end defines a valve seat (70). A valve element (80) engages...
8291707 Multi-stage check valve  
A multi-stage check valve includes a valve housing defining an internal valve chamber. A main valve member within the valve chamber of the valve housing has an internal valve chamber. In the first...
8291936 Non-return valve, in particular for medical uses  
A nonreturn valve includes a first tube connection housing and a second tube connection housing and a diaphragm disk between the first and second tube connection housings. The disk can be lifted...
8282368 Check valve  
A check valve. An illustrative embodiment of the check valve includes a valve body, a plurality of discharge port openings having at least one of a non-uniform width and a non-uniform position...
8181669 Compliant check valve stop  
A check valve (10) includes a valve housing (14) having at least one valve opening (16). At least one petal (12) is located in the valve housing (14) and is configured to substantially cover the...
8122911 Adjustable orifice for coal supply conduit  
A variable orifice for use in connection with a conduit designed to convey particulate material comprising a set of semi-circular plates mounted on respective concentric shafts so that they may be...
8118574 Radial suction valve assembly for a compressor  
A suction valve for a reciprocating compressor includes a hollow cylindrical valve seat having a plurality of suction ports formed therethrough. The suction ports are covered by flaps moveably...
8069926 Method of controlling flow through a drill string using a valve positioned therein  
A downhole valve comprises a tubular body and a valve member. The valve member is normally closed and in the closed position may prevent or restrict passage of a working fluid through the body....
7997296 Air valve device  
An outdoor lighting device includes a housing, at least one power supply device and at least one arrayed lighting unit. The housing has a surface forming at least one reflection zone and the...
7992588 Open state maintainable valve device for an inflatable article  
A valve device includes a tubular member fitted into an inflatable article, a flexible diaphragm having a peripheral region which engages a valve seat of the tubular member through a mounting...
7971603 Header for a heat exchanger  
Disclosed herein is a header for a heat exchanger that has an inflow side, an outflow side, a bypass port therebetween, and a pressure-sensitive flapper valve proximal the bypass port. As pressure...
7959420 Constant torque unloader system for a compressor  
An unloader system for a reciprocating gas compressor includes an unloader valve assembly which may be installed as the suction valve assembly or the discharge valve assembly of the compressor....
7954509 Check valves with hinge shafts retained by welding  
Methods and apparatus are provided for retaining a hinge shaft of a check valve with a bushing. The check valve includes a valve body defining a flow passage therethrough; a hinge shaft; a bushing...
7950910 Piston cartridge  
A piston cartridge having a piston chamber, an inlet port, an outlet port, and a piston moveable between a first position and a second position. Also, the cartridge includes a first barrier...
7906017 Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water  
A circulation system for bodies of water. In one set of embodiments for larger bodies of water, modified horizontal plate designs are provided at the entrance of the draft hose. The plate designs...
7819131 Springless compressor valve  
A valve closure system particularly suited to reciprocating compressors employs no springs and preferably urges the valve in the closed direction by the force generated from magnets positioned to...
7779859 Flapper with insert stops for check valve  
A check valve is provided that includes a valve body, a stop bar, a flapper, and a protrusion. The valve body has a flow channel extending therethrough, a first stop support, and a second stop...
7708074 Downhole valve for preventing zonal cross-flow  
A flow control valve for use in a downhole completion tubing string, where the control valve prevents cross flow between producing zones. The control valve comprises a housing forming a plenum...
7695275 Air:fluid distribution system and method  
A valve assembly including a block forming a bore. An air inlet opening is in communication with the bore, and provides a volume of air into the bore. The bore provides communication between the...
7568498 Engineered composite quiet check valve  
A check valve is provided that includes a valve body, a stop mechanism, and a flapper. The valve body includes a flowpath extending therethrough and a pair of stop supports extending axially...
7565978 Vacuum packaging bags equipped with deflating device and deflating cylinders for use thereof  
Disclosed is a vacuum packaging bag. Three edges of the bag are sealed and one edge is equipped with a concave-convex fastener. The bag is equipped with a deflating device. The deflating device...
7562669 Check valve stop assembly and method of retention  
A check valve stop assembly and method of retaining the check valve stop assembly in a check valve flow body without external fixation means, wherein the check valve stop assembly includes a...
7540301 Compressor valve  
A steel dampening ring rests on a wafer spring in an annular groove in a compressor valve stop plate to dampen the action of the plastic valve plate to prolong the life of the valve.
7527069 Electromagnetic split flapper pressure relief valve  
A pressure relief check valve system includes a valve body, a flapper, a magnet, an electromagnet, and a pressure sensor circuit. The flapper is rotationally mounted on the valve body and is...
7517280 Air duct assembly for a vehicle  
An air duct assembly for a vehicle heating, ventilation and air conditioning (HVAC) system includes a first duct member having a pair of opposed side walls, an upper wall and a lower wall, a front...
7493770 Methods and apparatus for regulating airflow supply systems  
A check valve is provided that includes a valve housing that has a side wall and a flow path therethrough, the side wall defining the flow path. The flow path includes an inlet, an outlet, and a...
7428914 Flow control valve  
A flow control valve includes a housing, a valve element, a valve-element urger, a first valve, and a second valve. The first valve closes the communication between inlet and outlet openings of...
7422029 Linear damper for check valve  
A damping system, for a valve with a flapper movable between an open position and a closed position, comprises a main body and a piston. The main body has at least an inner wall that defines a...
7370668 Valve for winterizing a pool  
A valve assembly for use in winterizing a swimming pool closes to prevent pool water from entering into a pool pipe situated below the water line and opens to allow fluid or air to be pumped out...

Matches 1 - 50 out of 429 1 2 3 4 5 6 7 8 9 >