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Match Document Document Title
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 at...
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. The...
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. The...
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 the...
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 of...
7325569 Butterfly valve with integral split flapper relief valve  
A valve is provided that includes a valve housing, a valve element, and a flapper. The valve housing has a passage. The valve element is rotationally mounted in the passage and moveable between an...
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...
7302967 Reverse flow preventing device and electronic apparatus  
A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of...
7302962 Vehicle pressure relief valve having peripherally secured flaps and method of manufacturing the same  
A pressure relief valve (12) for relieving air pressure from a passenger compartment (14) of a vehicle (10) includes a base (18) having a peripheral portion (30). A central opening (42) extends...
7225830 Fluid control valve  
A fluid control valve having a spring biased shuttle plunger member which opens or closes fluid flow through a plurality of radially spaced apart fluid passageways disposed between an upstream...
7219690 Flow control valve  
A two-stage fluid pressure control valve has five components. An inlet socket with separate fluid flow orifices sealably engages an outlet socket which also has separate fluid flow orifices. A...
7191796 Dual outlet air valve  
The dual outlet air valve is design feature that would greatly enhance the convenience of the standard valve stem design. In order to accomplish this the dual outlet air valve comprises a...
7143783 Fuel tank cap safety valve with splash control and overpressure release  
A fuel tank cap provides a safety valve mounted on a tubular vent stem for venting fluids from a fuel tank. The safety valve is adapted for engagement with the tubular vent stem so that the fluids...
7128091 Sexless coupling for fire hydrant-fire hose connection  
A sexless coupling for coupling a fire hose to the externally threaded neck of a fire hydrant. The coupling comprises an internally threaded collar portion for threading onto the neck of the fire...
7114518 Flow regulating valve  
A valve assembly that includes a valve body defining a fluid passage. First and second ends of the fluid passage define first and second ports for fluid flow. A spring and piston are located in the...
7059344 Discharge valve mechanism for variable displacement compressor  
A discharge valve mechanism has a plurality of discharge openings. The discharge openings are placed in an open or closed state by a plate-like valve element. Each of the discharge openings is...
7028709 One-way valve with poppet member  
The valve includes a supply portion, a delivery portion and an intermediate fluid chamber; a poppet member is positioned within the fluid chamber and is adapted to move within the chamber, the...
6969314 Air exhauster invention  
A pressure relief valve provided for installation in an opening in a motor vehicle body. In particular, the valve is configured to allow a volume of air to flow therethrough substantially...
6959726 Valve assembly for attenuating bounce of hydraulically driven members of a machine  
A member that is driven by a hydraulic actuator tends oscillate when fluid flow to the hydraulic actuator is terminated. A pressure relief device reduces that oscillation by connecting first and...
6932109 Scavenger valve assembly  
A poppet scavenger valve includes multiple cages for multiple poppets, permitting better control of the spacing of the assembly, facilitating maintenance and permitting better fluid flow through...
6901953 Fuel metering device for a turbomachine injector  
A fluid metering device including a metering valve capable of sliding in a bushing under fluid feed pressure in order to enable a fluid to be admitted and then ejected. The valve can have, at a...
6880577 Reed valve assembly  
The reed valve assembly of the present invention includes a reed cage, a retainer, and reed petals. The retainer is independently interlockable with the reed cage. As defined herein, independently...
6871664 Valve flange connection  
A flange is provided for a valve which extends in a radial direction outwardly from the valve and has a peripheral edge. The peripheral edge is comprised of a series of outer surfaces positioned at...
6837784 Ventilation device  
A ventilation device has a duct main body, a valve body, and pairs of widened portions. The duct main body has an opening. The duct main body has an upper edge defining a part of the opening. A...
6834677 Over-molded check valves for fluid delivery systems  
An over-molded fluid control value for use in fluid delivery systems. An embodiment of the fluid control valve includes a rigid substrate having a opening defined therein, and a valve structure...
6820644 Delivery valve device for refrigerant fluid compressor  
A delivery valve device for a refrigerant compressor. The delivery valve device include a valve plate with the delivery passage closed by a delivery valve fixed at one end to the valve plate and...
6817846 Gas compressor and method with improved valve assemblies  
A gas compressor and method according to which a piston assembly reciprocates in a bore to draw the fluid to be compressed into the bore during movement of the piston unit in one direction and to...
6802331 Particle-based check valve  
A check valve for a fluidic system includes a fluidic conduit having an inlet with a first particle barrier, an outlet with a second particle barrier and a fluid chamber between the inlet and the...
6796321 Pressure relief valve  
A pressure relief valve including a valve seat and a valve seat retainer abutting the valve seat. The valve seat has a central channel whereas the valve seat retainer has a number of peripheral...
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...
Matches 1 - 50 out of 404 1 2 3 4 5 6 7 8 9 >