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| Number | Title | Issue Date |
| 8038124 | Fuel injector having a disk valve with a floating, compliant injector seat An improved disk-valve fuel injector comprising a self-centering, floating valve seat insert disposed in a valve body. The valve seat insert includes a circular first valve seat and the body includes a circular second valve seat concentric with the first valve seat.... | 10/18/2011 |
| 7418998 | Chamber sealing valve According to some embodiments, a first sealing portion is provided on a valve shaft to seal a chamber. The first sealing portion may, for example, seal the chamber when the valve shaft is inserted a first distance into an opening of the chamber. A second sealing por... | 09/02/2008 |
| 7409964 | Faucet type valve with backflow control in handle structure In a valve, the combination comprising a valve chamber, having a flow inlet and a flow outlet, a valve operator outside the chamber, a stopper in the chamber and operatively connected with the operator for movement toward and away from seat structure in the chamber,... | 08/12/2008 |
| 7357151 | Fluid control devices Improved fluid control devices are provided for metering pressure effectively in environments that may contain solid particles and in which the ambient pressure is subject to change. Such a valve comprises a valve body containing a plunger assembly contacting a firs... | 04/15/2008 |
| 7290606 | Inflow control device with passive shut-off feature Devices and methods for control flow of formation fluids respect to one or more selected parameter relating to the wellbore fluid. In one embodiment, a flow control device for controlling fluid flow into the production tubular uses a flow restriction member that is ... | 11/06/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7232106 | Tilted and stepped diaphragm for control valves A diaphragm operated valve having the diaphragm attached at its lower end to a valve closure plug, and movable therewith, and attached at its upper end to a portion of valve body that forms the pressure cavity. The diaphragm has a stepped portion between its upper a... | 06/19/2007 |
| 7232107 | Control valve having a filter screen mounted flush with a valve closure member surface A diaphragm operated valve having the diaphragm attached at its lower end to a valve closure plug, and movable therewith, and attached at its upper end to a portion of valve body that forms the pressure cavity. The diaphragm has a stepped portion between its upper a... | 06/19/2007 |
| 7210667 | Redundant testable valve apparatus Redundant valve apparatus including a first valve seat and a second valve seat located in the fluid passage of a hollow valve body between the inlet portion of the fluid passage and the outlet portion of the fluid passage and a poppet member having valve seat sealin... | 05/01/2007 |
| 7201187 | Low-flow valve A low-flow diaphragm valve is disclosed having a flexible diaphragm that cooperates with a portion of the valve body to open and close the valve. The diaphragm may have a portion for seating in a passage between the inlet and outlet of the valve and may have one or ... | 04/10/2007 |
| 7178553 | Leak-resistant solenoid valves A leak resistant solenoid valve comprises a valve body having an interior chamber, an inlet, an outlet, and at least one valve seat and valve plug located in the interior chamber. The valve plug has a sealing surface and is axially movable between open and closed po... | 02/20/2007 |
| 7168683 | Oil drain valve A drain valve to be used with numerous drain applications, such as draining fluid from an engine, includes in an exemplary embodiment a valve body, an o-ring and a cap. In another exemplary embodiment, the drain valve includes a valve body, an o-ring, a cap retainer... | 01/30/2007 |
| 7147000 | Covering device for drain A covering device for a drain includes a first cover and a second cover. The first cover defines a plurality of openings. The second cover defines a plurality of openings corresponding to the openings of the first cover. The second cover is rotationally connected to... | 12/12/2006 |
| 7108013 | Relief valve assembly A relief valve assembly is disclosed to include a casing, an one-way valve mounted in the fluid input end of the casing for guiding in a fluid, and a relief control valve installed in the casing between the fluid input end and fluid output end and controllable to re... | 09/19/2006 |
| 7090194 | Self-priming drain valve Provided is a self-priming drain valve suitable for draining liquid from a tank wherein sediment and other solid matter has accumulated. The valve includes a reverse thread, stem-down to close operation, which allows the valve stem, and attached plug, to disturb the... | 08/15/2006 |
| 7021605 | Regulator valve A control valve (1) comprises a housing (2) manufactured by a pressure die casting process, whose housing edges of upper semicircular bore hole are located exactly vertically above housing edges of lower semicircular bore hole and for this reason, the ... | 04/04/2006 |
| 7011117 | Filling valve An improved filling valve and liquid filling machine comprising such valve are herein disclosed. The filling valve comprises a housing having a base, a cap and a sidewall extending between the base and the cap thereby defining a chamber. The base has a ramp which sl... | 03/14/2006 |
| 6959718 | Valve There is provided a valve enabling complete prevention of leakage and a backflow and having durability and less noise, and further there may be implemented a valve capable of predicting the tendency of occurrence of damage on the functions of the valve before the fu... | 11/01/2005 |
| 6955186 | Electromagnetic double switching valve An electromagnetic dual-action control valve with a housing (2), with connections (15, 16, 17) for inflow and outflow lines for a pressure medium, with a solenoid (3) and with two armatures arranged to move within the solenoid (3) for ope... | 10/18/2005 |
| 6953056 | Metering valve assembly A metering valve assembly is provided with a valve stem having one or more tapered channels formed therein for selective engagement with a valve seat to provide incremental regulation of fluid flow through a valve housing. An adjustment knob provides one manner of r... | 10/11/2005 |
| 6939032 | Cover slip mixing apparatus A cover slip mixing apparatus having a support and a flexible cover slip positioned over and forming a chamber between the support and the cover slip. A device is positioned with respect to the support and cover slip for applying a force on the cover slip and flexin... | 09/06/2005 |
| 6935369 | High pressure oxygen valve A high pressure valve for oxygen service comprises a valve body (10) with a gas passage (12) and a valve seat (18) associated with the gas passage (12). An obturation unit (22) is movable between a first position, wherein it is spa... | 08/30/2005 |
| 6790548 | Staged venting of fuel cell system during rapid shutdown A venting methodology and system for rapid shutdown of a fuel cell apparatus of the type used in a vehicle propulsion system. H2 and air flows to the fuel cell stack are slowly bypassed to the combustor upon receipt of a rapid shutdown command. The bypass... | 09/14/2004 |
| 6685167 | Double-seated shutoff valve A new valve device adapted specifically for use with hot erosive flow streams is provided. This valve device has an inner plug head, which modulates and throttles the amount of flow passing through the valve when the valve is open. The inner plug head is ... | 02/03/2004 |
| 6655653 | Method and mechanism to reduce flow forces in hydraulic valves A mechanism for controlling forces in a valve assembly such as flow induced forces. The valve assembly comprises a valve body defining first and second flow passages. A valve is movable in the valve body along an axis to control fluid flow between the fir... | 12/02/2003 |
| 6375154 | Seat and holding valve A hydraulic seat and holding valve for hydraulically controlling and holding a hydraulic load in a leakproof manner comprises a seat pairing, whose valve cone, which is part of the piston, is capable of adapting itself to the conical valve seat. To this e... | 04/23/2002 |
| 6286770 | Fuel injection of an improved type Fuel injector, comprising a main tubular body, provided with at least one through pipe which ends in a spray nozzle which can spray the fuel present inside the through pipe, and a shutter unit, which is mobile axially inside the through pipe, from and tow... | 09/11/2001 |
| 6206021 | Sleeve valve with clean out section A sleeve valve comprises a sleeve and a gate. The sleeve includes an intake, a discharge nozzle section, and a clean-out section. The discharge nozzle section includes a plurality of nozzles. The sleeve is adapted for fluid flow from the intake through a ... | 03/27/2001 |
| 6192920 | Chain link float valve A valve for maintaining a given level of liquid in a tank, reservoir, or other container having a liquid-gas interface. Said valve being actuated by a float that rises and falls along with the liquid in the container. Said valve float actuates a series of... | 02/27/2001 |
| 6095186 | Plural valve seating arrangement A valve arrangement comprises a valve housing and a shutoff device. The valve housing has a flowthrough passage extending between an inflow opening and an outflow opening. The shutoff device is for closing the flowthrough passage. The shutoff device has a... | 08/01/2000 |
| 5878993 | Shielded globe valve seal mechanism A globe valve is which uniquely shields and effects sealing compression of a soft seal (10) such the valve can be used to control and fully stop flow of fluids of a variety of extremes of pressure, temperature, corrosive capacity and erosive capacity or c... | 03/09/1999 |
| 5878771 | Precision gas blender Apparatus and methods for precision batch or continuous flow blending of gases are described. Pulsatile precision metering valves having substantially zero dead space are employed to introduce gases to a mixing chamber or manifold in predictable uniform q... | 03/09/1999 |
| 5791631 | Valving assembly A novel valving assembly that provides redundant control, eliminates separate gasketing, and assures proper valve seating, which includes a dual valve disk construction having a laterally extending integral web membrane.... | 08/11/1998 |
| 5618025 | Protected soft seat with secondary hard seat A fluid control valve operable in erosive fluid conditions includes a primary soft seat protected by a secondary hard seat. Two dead band areas control the fluid flow on valve opening and closing to spacially separate the soft seat from the flow stream. A... | 04/08/1997 |
| 5603483 | Solenoid valve A normally open solenoid valve is provided for brake system operation which includes a poppet utilizing a spherical end in conjunction with a valve seat to provide the primary control orifice of the valve. A sleeve is inserted into the main body of the va... | 02/18/1997 |
| 5540251 | Precision gas blender Apparatus and methods for precision batch or continuous flow blending of gases are described. Pulsatile precision metering valves having substantially zero dead space are employed to introduce gases to a mixing chamber or manifold in predictable uniform q... | 07/30/1996 |
| 5462253 | Dual slope flow control valve A fluid flow control valve actuated by a solenoid to selectively position the valve by balancing electromagnetic forces, spring forces and fluid forces within the valve. The valve includes a plurality of flow control orifices in series that provide flexib... | 10/31/1995 |
| 5454546 | Water faucet mechanism A water faucet includes an inlet, an outlet and an opening formed between the inlet and outlet. A cylindrical member extends upward from the opening. A sleeve is secured to the body. A rod is threadedly engaged in the sleeve. A cap is secured to the lower... | 10/03/1995 |
| 5445143 | Humidifier with dual float valves A humidification chamber for a respiratory humidifier water is maintained by the use of floats which actuate valves to control the passage of water through a water inlet. Two floats are each provided with actuating mechanisms to separately control the res... | 08/29/1995 |
| 5431188 | Flow trim for choke The flow trim has inner and outer, spaced apart, tubular cylindrical, coextensive, ported walls which project across the inlet of the choke. A tubular throttling collar may be advanced longitudinally through the annular space between the ported walls, to ... | 07/11/1995 |
