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| Number | Title | Issue Date |
| 7434596 | Non-return valve for a pump The invention relates to a non-return valve for a pump, in particular a fuel pump, with a housing (2) in which a valve seat (3) is embodied, a closing body (4) and a cage element. The closing body (4) is arranged within the cage element, ... | 10/14/2008 |
| 7434597 | Thermostatic expansion valve with check valve A valve is provided that comprises a valve body including an inlet, an outlet, and a check valve chamber having an opening through the side of the valve body. The valve has a cover secured within the side opening in the valve body. A first valve opening is disposed ... | 10/14/2008 |
| 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 the pool pipes, including an adaptor having threads for attachment t... | 05/13/2008 |
| 7367356 | Oil flow control valve for a cam phaser An oil flow control valve (10) for a cam phaser is described comprising a spool (18), a spool housing (16) and a check valve (40), wherein the spool (18) comprises a throughbore (60) and the check valve (40) is mounte... | 05/06/2008 |
| 7353842 | Air fitting with an integral check valve An air fitting with an integral check valve includes a housing having an inlet and at least one outlet, a passage extending between the inlet and the at least one outlet with a valve seat being formed in the passage adjacent the at least one outlet with a portion be... | 04/08/2008 |
| 7237569 | Ball check valve A ball check valve includes a mounting base, a valve cage and a valve ball. The valve cage is mounted on the mounting base and includes a base, multiple holding fingers and a filtering and regulating device. The holding fingers are formed on the base and are arrange... | 07/03/2007 |
| 7204268 | Internal pressure equilibrium device for airtight space The invention relates to an internal pressure equilibrium adjustment device for airtight space with rapid operation and simple structure. The invention comprises of a pipe 8 which is mounted on the wall 9 of airtight space and has a plurality of... | 04/17/2007 |
| 7152623 | Fluid jet for providing fluid under pressure to a desired location A fluid jet for providing fluid under pressure to a desired location is disclosed wherein the valve body includes and integral valve element retaining region. Preferably, the valve body and integral valve element retaining region are die cast as a one-piece componen... | 12/26/2006 |
| 7150376 | Double-layered fluid container A double-layered fluid container which includes an upper diaphragm and a lower diaphragm, which provides alternating squeezing action so that the upper diaphragm and the lower diaphragm causes an opening and a closing action to the container. The contents in the con... | 12/19/2006 |
| 7104277 | Valve for controlling a tank internal gas pressure The invention concerns a control valve (c) for internal gas pressure of a liquid tank co-operating with an orifice (10) provided in the upper part thereof, allowing through a gas flow outside the tank when the difference between the internal pressure and the ... | 09/12/2006 |
| 7056105 | Unit utilizing current to control reciprocation for pushing fluids A unit utilizing current to control reciprocation for pushing fluids, including a chamber, a magnet, a coil connected with a circuit, a first inlet, a first outlet, a second inlet, a second outlet, a first valve and a second valve. The magnet is slidably disposed in... | 06/06/2006 |
| 6971404 | Pressure protection valve A pneumatic valve (10) for selectively controlling fluid flow through a pneumatic system of a vehicle is disclosed. The valve (10) includes a housing (12) having a cavity (28). The cavity includes an inlet (16) and an outlet (18... | 12/06/2005 |
| 6877524 | Valve for winterizing a pool A valve assembly for use in winterizing a swimming pool has a plurality of flow apertures and opens to allow water to flow out of the swimming pool pipes and conduits through a valve flow conduit and the flow apertures and into the pool, and closes under the pressur... | 04/12/2005 |
| 6840270 | Low deviation pressure relief valve for fuel pumps A low deviation pressure relief valve for a fuel pump consisting of a housing having an elongated bore having a continuous wall, an axis, shoulders arranged on the wall so as to extend toward the axis. A ball in the housing has a diameter at least less than the diam... | 01/11/2005 |
| 6685451 | Valve assembly for sucker rod operated subsurface pumps A valve assembly for an oil pumping system including a shell, a seat affixed in a lower end of the shell, a ball positioned within the shell and having a diameter greater than a diameter of the seat, and a cage positioned within the interior passageway of... | 02/03/2004 |
| 6382230 | Ball valve A ball valve comprising a seat having a first opening thereon, a housing over the seat having a second opening defined by a flap having an inner and outer diameter, and a ball in the housing, the ball having a diameter great than the inner diameter of the... | 05/07/2002 |
| 6065948 | Discharge check valve in a scroll compressor A scroll compressor has a discharge check valve assembly comprised of a valve and a valve cage. The valve is maintained open within the assembly by the flow of discharge gas from the scroll set during the normal course of compressor operation and is essen... | 05/23/2000 |
| 5992442 | Relief valve for use with hermetically sealed flexible container A pressure relief valve for use with flexible containers holding coffee, especially ground coffee, is disclosed. The valve incorporates a unique two piece structural arrangement that requires a low level of precision compared to similar valves. The valve ... | 11/30/1999 |
| 5971015 | Check valve A check valve having a housing (2, 4) and a ball (22) movably disposed therein on a guide member (28) and driven by a flowing medium, and able to come in contact with a seat (24) due to the force of gravity. The check valve is designed such that, even in ... | 10/26/1999 |
| 5967180 | Check valve A check valve (12) includes a cage (14) having a tubular side wall (16) including outward and inward undulations (28,30) that provide fluid flow through the check valve and externally thereof as well as providing guiding of an associated valve element bal... | 10/19/1999 |
| 5853162 | Electromagnetic control valve responsive to positive and negative pressures An electromagnetic control valve having a coil housing and a valve housing provided with a connector for inlet into the valve housing of a medium whose pressure is to be controlled. The valve housing has a chamber connected to ambient atmosphere and a pre... | 12/29/1998 |
| 5785083 | Tubular refrigerant check valve with snap-together internal valve cage structure A check valve connectable in a refrigerant line is economically fabricated from only four parts--(1) a copper tubing body connectable in the refrigerant line, (2) a nonmetallic shutoff ball, (3) an annular valve seat member having a diametrically opposite... | 07/28/1998 |
| 5680881 | Valve system for hermetic reciprocating compressor The present invention relates to a valve system for the hermetic reciprocating compressor, and more particularly, to reduce the gap volume of the spouting hole so as to help smoothly spout out the refrigerant through the spouting hole formed at the valve ... | 10/28/1997 |
| 5653258 | Vent valve A vent valve for a thermostatic valve of a coolant circuit of an internal combustion engine has a ball with a radius and a diameter and serving as a sealing element, and a one-piece metal cage for the ball. The cage has a pot-shaped part with an inside di... | 08/05/1997 |
| 5249597 | Digestor tank having a pressure relief valve A pressure relief valve selectively permitting fluid flow through the valve if the pressure on one side of the valve exceeds the pressure on the other side of the valve by a set amount, the pressure relief valve including a first valve member having a val... | 10/05/1993 |
| 5195552 | Check valve with exchangeable valving elements A check valve wherein the housing has an inlet and a seat at one end and an outlet at the other end. The other end can receive a removable and reinsertable cage which serves to confine a selected one of several spherical and/or otherwise configurated valv... | 03/23/1993 |
| 4966535 | Non-return valve for admitting a liquid to be sprayed into a pump chamber, and utilization thereof Some precompression pumps currently used for spraying a liquid include a non-return valve formed by a gasket (3) held captive between the base of the pump body (1) and a sleeve (2). This non-return valve determines the extent to which the pump chamber (19... | 10/30/1990 |
| 4936846 | Pannus formation preventing heart valve The invention is relative to a cardiac valve. This valve is of the type which comprises a means inserted with a controlled and limited clearance into a casing (2) comprising a ring (2.1) and a wire framework constituting arches, which ring comprises a per... | 06/26/1990 |
| 4907616 | Check valve assembly A check valve for use in a vehicle engine fuel system comprising a fuel storage tank, a fuel feed line for delivering fuel from the tank to the engine, and a fuel return line for returning unused fuel from the engine to the tank. The valve is mounted on t... | 03/13/1990 |
| 4679777 | Hydraulic-elastomeric mount displacement decoupler A hydraulic-elastomeric mount has a pair of liquid filled chambers formed by elastomeric walls and separated by a rigid partition having an orifice that connects the chambers to effect damping. The partition supports a rigid damping decoupler for free rec... | 07/14/1987 |
| 4531543 | Uni-directional flow, fluid valve The valve has a seat and plate coupled together to define a shallow chamber therebetween, and a thin, metal, valving disc is freely movable, through the chamber, between the seat and plate. The disc has a metering orifice in the center thereof for communi... | 07/30/1985 |
| 4391295 | Hot water system and valve A hot water system in which a damped, gravity operated, check valve is interposed between the hot water heater and the hot water delivery pipe network. The valve opens when a tap is opened allowing hot water to pass into the pipes and to the tap. The valv... | 07/05/1983 |
| 4369808 | Disc-type check valve The valve comprises a bored housing formed of two segments. A discrete annular seat member is positioned on an annular shoulder formed in one segment. A guide member, comprising spaced apart legs and an apertured end wall is positioned on the seat member.... | 01/25/1983 |
| 4275759 | Closure member A closure member comprises a casing having a plurality of stripe recesses as fluid passages, a valve seat inserted in said casing having a flange portion for sleeving a ring magnet and a high strength material adopted on the flange portion, a piston made ... | 06/30/1981 |
| 4100935 | Check valve for heat pump systems An improvement in ball-type check valves of the type used in heat pump systems. The valve is designed so that the pressure differential across the ball is significantly higher than in prior art devices. This assures that the ball is held away from the sea... | 07/18/1978 |
