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| Number | Title | Issue Date |
| 8136543 | Axial flow control valves having an internal actuator Axial flow control valves are described herein. An example axial flow control valve described herein includes a valve body defining a passageway between an inlet and an outlet that is substantially parallel to a fluid flow path at the inlet and the outlet of the val... | 03/20/2012 |
| 8113228 | Suction valve A suction valve for a pipe line in which a medium flows is provided, whereby the flow can be closed and regulated and whereby back flow prevented. The suction valve includes a movable a closing mechanism (3) placed in a valve house (1), and an opposed ... | 02/14/2012 |
| 7588047 | Compressor bypass valve for use in multistage supercharging A compressor bypass valve for multistage supercharging an internal combustion engine equipped with a supercharging system. The valve includes a displacement body accommodated in a valve housing. The displacement body is divided into a first displacement part and a s... | 09/15/2009 |
| 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 |
| 7353837 | Pressure reducer with adjustable flow restrictor A pressure reducer has a housing comprising an inlet and an outlet in which a flow-around body is arranged in a flow channel connecting inlet and outlet. A flow restrictor is adjustably mounted relative to the flow-around body for varying a flow rate and is movably ... | 04/08/2008 |
| 7322373 | High accuracy low leakage valve for high pressure applications A high pressure valve assembly (10) comprising a valve sleeve (14) and a valve body (16) slidably mounted in the valve sleeve (14) is disclosed, the valve body (16) and valve sleeve (14) each having first ends (18, 56... | 01/29/2008 |
| 7284566 | Valve arrangement for guiding a liquid against a gas pressure gradient Valve arrangement for guiding a liquid against a gas pressure gradient. The valve arrangement includes first, second and third pressure areas connected in series. An intake opens into the first pressure area. An outlet opens into the third pressure area. Flow check ... | 10/23/2007 |
| 7213613 | High-flow dual poppet valve having equalized closing forces A dual-poppet valve comprising a valve body having spaced-apart coaxial valve seats and being arranged such that first and second poppets both open into the primary chamber. A first pintle shaft engages the first poppet, and a second pintle shaft engages the second ... | 05/08/2007 |
| 7178784 | Valve assembly and method The present invention discloses, among other things, a valve assembly that includes a body, a valve, a biasing mechanism, and a guide. The body includes a shaped cavity and the valve includes an elongated portion and a shaped valve head that has an exterior surface ... | 02/20/2007 |
| 7125003 | Liquid treatment injector A reagent injector and/or aerator for aqueous fluids can use a variety of different removable end caps to adapt a venturi to different types of water treatment systems. The invention is adjustable because the end caps can be removed and springs that activate poppet ... | 10/24/2006 |
| 7077158 | Velocity head compensated valve assembly A valve assembly includes a valve body configured to define a chamber forming a primary flowpath between an inlet port and a discharge port, an isolator disposed inside said chamber, and a poppet having a bore. The isolator is defined by a skirt and a stem, with the... | 07/18/2006 |
| 7040339 | Suction inlet valve for fire truck pumpers A suction inlet valve for fire truck pumpers has a male body portion and a female body portion, the portions defining a chamber therein. A cone-shaped valve element is connected to a valve stem which has a cam body thereon with a cam slot therein. The cam slot recei... | 05/09/2006 |
| 6915813 | Check valve A check valve including an outer body having a cylindrical inner bore and a shuttle within the inner bore which is arranged with an upstream, middle and downstream portion that each engage with a sliding fit the inner bore of the outer body being such that, when in ... | 07/12/2005 |
| 6752168 | System for controlling the working conditions for mechanical pumps, and a regulation valve for such a system A system for controlling the working conditions for mechanical pumps supplying associated devices with pressure fluid via a pipe system. A valve means (25) is placed between at least one of the pumps and an appurtenant device supplied by the pump, which valve... | 06/22/2004 |
| 6742539 | Co-axial control valve A flow control valve has a housing having a fluid inlet at one fitting end and fluid outlet at another fitting end, and a control body supported within the housing by support structure bridging between the control body and the housing such that for flow of fluid thr... | 06/01/2004 |
| 6684895 | Fluid control valve apparatus and method An improved fluid control valve includes a valve body with an inlet and an outlet. A sealing member is connected to the valve body conformed to seal the inlet and form a pressure chamber. A push rod is connected to the sealing member and a sleeve is provi... | 02/03/2004 |
| 6279594 | Flow actuated valve An upright cylindrical valve body has an inlet port axially aligned with an outlet port. A valve member is retained for reciprocal movement into and out of engagement with a valve seat axial aligned with fluid flow between the inlet and outlet ports. A re... | 08/28/2001 |
| 6230734 | Flow-rate controller A flow-rate controller comprises hollow casing 1, main 2 and additional 3 outlet branch pipes, and outlet branch pipe 4. Piston-type slide valve 13 with skirt 14 is located between front 5 and rear 10 guide bushes. The starting fuel component flows throug... | 05/15/2001 |
| 6132191 | Check valve for scroll compressor A series of check valves are disclosed for use in a scroll compressor which control and dampen the closing of the check valve to reduce noise during rapid pressure fluctuations encountered during normal operation and to control loss of gas in a discharge ... | 10/17/2000 |
| 5921276 | Piston-type check valve with diffuser An axial recess is formed in the downstream end of the diffuser body. An annular tail member is mounted on the downstream end of the valve piston. The tail member retracts into the recess when the piston is in the closed position and provides an extension... | 07/13/1999 |
| 5715857 | Multi-use valve A multi-use flow control and pressure reducing valve includes an inlet chamber, an intermediate chamber, and an outlet chamber. An hydraulic gate member forms the outlet chamber and controls communication between the intermediate chamber and outlet chambe... | 02/10/1998 |
| 5540252 | Pneumatically stabilized inline valve A variable area inline valve receives a pressurized fluid and regulates the amount of pressurized fluid flowing through the valve. The valve includes a piston assembly which slides longitudinally along a center line of the valve to control a variable flow... | 07/30/1996 |
| 5435337 | Inline control valve for controlling fluid flow An inline control valve (10-10F) having a fixed diverter member or plug (34-34F) positioned centrally of the flow passage (30-30F) and a sleeve (40-40F) mounted for movement between open and closed position relating to the plug (34-34F). One embodiment (F... | 07/25/1995 |
| 5375621 | Check valves A diaphragm- and spring-less check valve for gaseous media comprising an inlet housing (41) having a sealing edge (51), an outlet housing (11) and a closure body (30) disposed in between the housings, which is guided so as to be axially (14) movable and c... | 12/27/1994 |
| 5320130 | Valve block assembly for I.S. machine A valve block assembly for controlling the flow of air at either of two pressures to the air operated mechanisms of a section of an I.S. machine comprising a plurality of valves each having a cylindrical sleeve and a valve element axially displaceable wit... | 06/14/1994 |
| 5314299 | Speed governor for a pneumatic power tool A speed governor for a pneumatic power tool which comprises a housing (10) with pressure air supply means (16-18) and an air turbine (20) including a turbine wheel (22) drivingly coupled to an output spindle and a number of air nozzles (25) for directing ... | 05/24/1994 |
| 5141420 | Scroll compressor discharge valve A scroll type hermetic compressor is disclosed which incorporates an improved disc type check valve in the discharge conduit exiting from the compressor shell. The check valve operates to prevent return of high pressure refrigerant which may cause reverse... | 08/25/1992 |
| 5104038 | Thermostat apparatus An apparatus wherein a thermostat is mounted within a sleeve, with the sleeve positionable as a junction between a plurality of hoses, or alternatively, the sleeve formed with a sealing boss, with the sealing boss extending radially beyond the sleeve, and... | 04/14/1992 |
| 5080122 | Non-return valve A valve body having an opening closed by a cover through which may be mounted or demounted a non-return obturator which is mobile along an upstream-downstream axis, the obturator being installed by first securing a first member to the valve body and then ... | 01/14/1992 |
| 4911196 | Inline check valve An inline check valve (10) has a valve body (12) with an enlarged diameter valve chamber (14) in which a cage assembly (44) is mounted. Cage assembly (44) has a cylindrical body (48) fitted about the outlet flow passage (18) and projecting in unsupported ... | 03/27/1990 |
| 4747426 | Check valve A check valve or non-return valve has a valve body (9) which is connected with a piston (15) by a rod (14). The piston is guided by a sleeve (17) mounted inside an inner housing of the valve. The sleeve is provided with two radially extending openings (21... | 05/31/1988 |
| 4732189 | Fast opening valve A fast opening plug valve especially for release of high pressure gas. The plug has an internal chamber and is held in the closed position by the pressure of gas within this chamber which acts on a fixed wall. The opening stroke is driven by valve inlet p... | 03/22/1988 |
| 4681130 | Combined pressure regulated and check valve A combined pressure-regulated and check fluid flow valve is disclosed which is adapted to be installed directly on the pipeline and serve also as a protection against water hammer in case of sudden pressure failure in the line. The valve is installed with... | 07/21/1987 |
| 4651768 | Servovalve for pipe flange connection The flow controlling valve, particularly mounted in a pipe flange structure, comprises a cylindrical housing, a flow passage whose cross section is controllable, a valve seat, and a valve member and at least one auxiliary valve mounted in the housing. The... | 03/24/1987 |
| 4638832 | Nonreturn piston slide valve A nonreturn piston slide valve has an inner housing operatively held in an outer housing and a spring operated piston operatively held in the inner housing for cooperation with a valve seat. A flow passage is formed between the piston face and the valve s... | 01/27/1987 |
| 4637428 | Fluid flow control valves A fluid flow control valve which is responsive to the pressure drop occurring across the valve in order to maintain a substantially constant volume of fluid flow regardless of the pressures appearing at the upstream and downstream sides of the valve has a... | 01/20/1987 |
| 4516600 | Pressure regulating valves Pressure regulating valves intended primarily for use as pressure regulating shut-off valves are disclosed. The valves utilize a simple piston assembly operative between a valve open position and a valve closed position responsive to a spring biasing the ... | 05/14/1985 |
| 4479507 | Fluid pressure operated valve A fluid pressure operated valve device for connection to the inlet and outlet sides of a pilot valve has a two part, axially separable hollow cylindrical body with axially aligned inlet and outlet passageways, a side ported hollow cylindrical liner of sma... | 10/30/1984 |
| 4474207 | Pressure regulator A fluid pressure regulator is described including a movable regulator member and means biassing same to its fully-open position, the regulator member being exposed to the outlet pressure for moving same in the opposite direction and including a pressure-s... | 10/02/1984 |
| 4437485 | Check valve A check valve (10) for checking reverse flow as well as excessive forward flow includes a housing (15) and a pair of valve elements (20 and 25) which are operated by flow over both inner and outer faces thereof. A first of the valve elements (20) is unsea... | 03/20/1984 |
