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| Application No. | Application Title | Issue Date |
| 20120103442 | RELIEF VALVE FOR OIL PUMP A relief valve for an oil pump, may include a housing defining a relief space, a plunger slidably disposed in the relief space and dividing the relief space into a housing chamber and a plunger chamber, an elastic member elastically supporting the plunger and being comp... | 05/03/2012 |
| 20110277850 | FULL FLOW PRESSURE RELIEF VALVE A full flow pressure relief valve includes a housing having an inlet opening on its bottom and an outlet opening on one of its side. A piston is positioned inside the housing adapted to move from a set position where the piston seals the inlet opening to a sprung positi... | 11/17/2011 |
| 20110217157 | CONTROL VALVE WITH RADIAL SEALS A control valve is provided that includes a valve body, a valve element, a first radial seal, and a second radial seal. The valve body forms an inlet, an outlet, and a fluid flow passage therebetween. The valve element is disposed at least partially within the valve bod... | 09/08/2011 |
| 20110162732 | ANTI-SIPHON CHECK VALVE An anti-siphon check valve assembly 20 has an upper portion 4 body housing with a shut off seat 9 or seal 6 and a lower portion 3 body housing for attachment to the upper portion 4 body housing. Inside the body housing is an int... | 07/07/2011 |
| 20110107768 | Variable Performance Valve A variable performance valve for use in a fuel nozzle is presented. The valve includes a spring, an inner spool having a port, an outer sleeve, and an orifice, which in a fuel nozzle application may be a calibration orifice. In a low flow condition, the inlet to downstr... | 05/12/2011 |
| 20110079302 | Pump Valve with Full Elastomeric Contact on Seat This invention relates to valve assemblies having a valve seat body having an axial bore therethrough; wherein the valve seat body has an inclined seat surface located on an upper end of the seat body. The valve assemblies further include a valve member having a valve b... | 04/07/2011 |
| 20110067767 | SEQUENCE VALVE Sequence valves 10 (FIGS. 1-7) and 210 (FIG. 8) are disclosed for use in a hydraulic circuit (FIG. 2). Sequence valve 10 provides a control signal through a control signal port 20, 60 to a pressure responsive flow ... | 03/24/2011 |
| 20100283338 | OIL FILTER BYPASS VALVE ASSEMBLY FOR A GENERATOR A bypass valve assembly for a generator includes a spring cover with a flange which extends in a radial direction from a spring cover body. The spring cover body defines an overall length dimension, the overall length dimension to an end of the spring cover body to the ... | 11/11/2010 |
| 20100281997 | FLOW CONTROL ASSEMBLY A flow control device for automatically controlling the flow of a fluid at a predetermined rate that is capable of taking measurements of the pressure of the fluid within the device while the device is functioning and that is capable of real-time adjustment of the flow ... | 11/11/2010 |
| 20100252640 | THERMOSTATIC MIXING VALVE A thermostatic mixing valve (TMV) including a low-flow passageway and a high-flow passageway connecting a mixing chamber and a sensing chamber, and a check valve received in the high-flow passageway adapted to open and allow additional flow from the mixing chamber to th... | 10/07/2010 |
| 20100206405 | PILOT OPERATED CHECK VALVE A hydraulic valve having a first fluid chamber hydraulically connected to a pressure source, a second fluid chamber hydraulically connected to a pressure operator, and a blocking member for controlling fluid flow between the first and second chambers. The blocking membe... | 08/19/2010 |
| 20100096028 | ANTI-BACKFLOW VALVE An anti-backflow valve, including a valve seat and a plug slidingly disposed in the valve seat, is provided. The valve seat has a ring portion protruding inwards at a middle section of a flow passage thereof. The ring portion has a seat portion extended outwards on one ... | 04/22/2010 |
| 20100084028 | Soft seat pilot-to-open check valve A pilot-to-open soft seat check valve having a soft seat and zero leakage is described. The check valve includes a valve body with a poppet bore and an annular valve seat around the bore; a poppet moveable axially between open and closed positions within the bore, the p... | 04/08/2010 |
| 20100037965 | Check valve with separate spherical spring guide A check valve for use with a pump is disclosed. The check valve may have a body at least partially defining a central bore with an open end and a closed end, and a spring guide separate from the body and disposed within the closed end of the central bore. The check valv... | 02/18/2010 |
| 20100037615 | 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 position thereof the main valve member blocks fuel below a predetermined ... | 02/18/2010 |
| 20090302250 | SOLENOID VALVE In one embodiment, a solenoid valve includes a supply port that fluidly communicates with a source of compressed air, a delivery port, a bore that selectively fluidly communicates with the supply and delivery ports, an armature in the bore, a pole piece in the bore, and... | 12/10/2009 |
| 20090159824 | POPPET VALVES A subsea coupler has an internal chamber (6) adapted for the reception of fluid under pressure, a passageway (7) for the ingress of fluid to the chamber, a valve seat (9) in the passageway, a poppet comprising a body (4) which is engageable w... | 06/25/2009 |
| 20090114289 | RELIEF VALVE INCLUDING A CHECK VALVE IN A DAMPING CHAMBER A relief valve includes a body, a damping chamber in the body, a poppet in the body, wherein the poppet includes an end in the damping chamber, and a check valve in the damping chamber. The damping chamber is located adjacent an inlet side of the relief valve, and the c... | 05/07/2009 |
| 20090101218 | Valve means A valve means has a valve housing, in which an inlet duct for pressure fluid extends, the duct opening into a valve chamber, in which a valve member is held by spring means in a closed position engaging a valve seat, the valve member opening at a predetermined opening p... | 04/23/2009 |
| 20090032122 | Check Valve Structure for Use in Pump of Hydraulic Cylinder A check valve for use in pump of hydraulic cylinder comprises a check valve including a tubular member disposed therein and having a sheath member received therein, a pump including a chamber provided in an output pipe thereof for receiving the check valve, wherein the ... | 02/05/2009 |
| 20090032123 | Check Valve A check valve having a piston-like ball or stopper a pre-determined distance from the valve seat so that the ball or stopper seats against the valve seat only under backflow pressure.... | 02/05/2009 |
| 20090000675 | COMBINED RELIEF VALVE AND CHECK VALVE A combination check valve and relief valve has a valve body with an inlet, an outlet, and a valve chamber operatively interposed between the inlet and outlet. A check valve may be integrated with the relief valve and therefore simplify a hydraulic system. The valve incl... | 01/01/2009 |
| 20080271793 | Load-Pressure-Operated Flow Rate Regulator with Vibration Damping The invention relates to a load-pressure-controlled fees flow regulator (1) for adjusting the feed volume of an adjustable hydraulic pump (2) which feeds in a working line (3). The load-pressure-controlled feed flow regulator (1) has an adjus... | 11/06/2008 |
| 20080185045 | ENERGY RECOVERY APPARATUS AND METHOD An activatable pump is provided. The pump includes a piston in slideable communication with an inner surface of a cylinder, which has a first end and a second end. A first control valve and a second control valve are in physical communication with the first end of the c... | 08/07/2008 |
| 20080087332 | ACTIVE INTAKE PRESSURE CONTROL OF DOWNHOLE PUMP ASSEMBLIES Progressive cavity pump assemblies including one or more mechanisms adapted to regulate intake pressure of the main pump between a minimum intake pressure and a maximum intake pressure. In one embodiment, the mechanism is a sealing member configured to open at a thresho... | 04/17/2008 |
| 20070246103 | Relief valve A relief valve mounted on a pump such as an oil pump, for preventing pressure abnormality by allowing fluid to escape when a discharge fluid pressure reaches a predetermined set value, wherein influx of oil sludge into the valve can be prevented. The relief valve compri... | 10/25/2007 |
| 20070107784 | Pressure control valve A pressure control valve includes a housing, a piston within the housing, a biasing means within the housing for biasing the piston to seat in a first position for limiting fluid communication between an inlet port of the housing and an outlet port of the housing, and a... | 05/17/2007 |
| 20070095404 | Pressure limiting valve with a hydraulic seal ring The invention relates to a pressure limiting valve with a hydraulic seal ring (12), characterised in that the sealing element (6), for securing the flow gap (10) between the consumer connection (3) and the pressurised fluid outlet (4),... | 05/03/2007 |
| 20070079878 | Pressure limiting valve The invention relates to a pressure limiting valve. The pressure limiting valve comprises a valve holder a valve insert connected to the valve holder a valve piston slidably supported in the valve insert and a compression spring acting on the valve piston in the closing... | 04/12/2007 |
| 20070062582 | Structure of relief valve for oil pump When oil pressure of discharged oil of a pump is increased, a plunger moves backward against spring force of a spring to open relief holes. One of the relief holes is opened in advance of the other relief hole. A part of the one relief hole which is opened in advance is... | 03/22/2007 |
| 20060267320 | Airbag device An airbag module for a motor vehicle comprises an inflatable gas bag; a gas generator for inflating the gas bag; a valve for letting gas out of the gas bag; a moveable actuating element for the valve, which can be actuated in order to open the valve; and a trigger mecha... | 11/30/2006 |
| 20060196553 | Non-return valve What is disclosed is a non-return valve comprising a sealing piston which is biased against a valve seat in the basic position inside a valve housing, and which is manufactured by a plastics injection molding technique. ... | 09/07/2006 |
| 20060185737 | Pressure relief valve with debris trap A pressure relief valve for a pump includes a recess in its surface adjacent the high pressure side of the pump. The recess acts as a trap to capture and retain debris particles in the working fluid. By capturing and retaining the debris particles in the recess, jamming... | 08/24/2006 |
| 20060151031 | Directly controlled pressure control valve What is disclosed is a directly controlled pressure control valve comprising a seat piston in a longitudinal bore of a valve housing, which is radially guided in its guidance portion through the intermediary of two circular, spaced-apart guide members in the longitudina... | 07/13/2006 |
| 20060130903 | Check valve Disclosed is a new and improved check valve for use in applications such as spray drying, for example. The check valve assembly includes a valve member or piston mounted for movement within an axial bore defined within the valve body. The piston controls the flow of flu... | 06/22/2006 |
| 20050173005 | Pressure relief valve with direct hydraulic damping To protect hydraulic assemblies, in particular to protect hydraulic brace systems, pressure relief valves 1 are used, the closing part 10 of which is formed by a piston 15, which is connected to the connection 4, and the valve spring retainer... | 08/11/2005 |
| 20050166970 | Low pressure drop check valve A check valve includes a valve housing having a first housing portion including an inlet and a second housing portion having an outlet. A poppet valve is received in the housing and includes an outer surface having a diameter greater than the diameters of the inlet and ... | 08/04/2005 |
| 20050161093 | Backflow prevention valve A backflow prevention valve includes a cylindrical case member having a plurality of holes formed in an upper end at a periphery thereof, a valve member disposed in the case member to be movable in an axial direction thereof, an urging device disposed in the case member... | 07/28/2005 |
| 20050067023 | Fuel return valve A fuel return valve comprises a housing and a closing unit, a first passage, which is line-connected to a fuel pump, a second passage, which is line-connected to an internal combustion engine, and a third passage, which is line-connected to the fuel tank, as well as a p... | 03/31/2005 |
| 20050051217 | Valve A valve is disclosed for an air-bag for use as a safety device in a motor vehicle. The valve comprises a fixed component (1) which has a mount such as a mounting flange (2) for mounting the fixed component (1) to an air-bag or gas generator housing.... | 03/10/2005 |
