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| Number | Title | Issue Date |
| 7686033 | Valve connector A connector housing of a valve connector integrally has a tube connecting portion on one axial end thereof, a pipe inserting portion on the other axial end thereof, and a valve housing between the tube connecting portion and the pipe inserting portion. A valve housi... | 03/30/2010 |
| 7552745 | Valve connector A valve connector has a connector housing with a through-path and an internal valve disposed in the connector housing for opening and closing the through-path. The internal valve has a valve body with a plurality of guides. Each of the guides is provided with a supp... | 06/30/2009 |
| 7448408 | Check valve An inlet, a valve chest having a diameter larger than that of the inlet, and an outlet are formed in a valve casing. An annular valve seat is formed between the inlet and the valve chest. A valve element for opening and closing the annular valve seat is disposed wit... | 11/11/2008 |
| 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 |
| 7290562 | 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. ... | 11/06/2007 |
| 7270147 | Adjustable variable flow fertilizer valve A valve assembly comprising a body member forming a channel having first and second ends, forming a seat surface within and at the first end of the channel about an orifice that faces in the direction of the second end, the channel forming a first coupler at the sec... | 09/18/2007 |
| 7231938 | Check valve for pump of electronically controlled brake system A check valve for a pump of an electronically controlled brake system includes a valve body provided with a fluid path, a spring seat placed in an outlet of the fluid path of the valve body, a valve rod fitted at a lower end thereof into an inlet of the fluid path o... | 06/19/2007 |
| 7228869 | Pressure limiting valve What is disclosed is a a pressure limiting valve comprising a valve body, the axial movement of which is damped by means of a damping device. In accordance with the invention, the damping device includes a damping chamber formed on the return side, that is subjected... | 06/12/2007 |
| 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 chamber and downstream chamber in the valve body responsive to a fluid pr... | 06/05/2007 |
| 7222637 | Connector equipped with a valve A connector housing of a valve-equipped connector is integrally formed from a tube connection section at a first axial side; a pipe insertion section at a second axial side; and a valve housing section between the tube connection section and the pipe insertion secti... | 05/29/2007 |
| 7188622 | Filtering face mask that has a resilient seal surface in its exhalation valve A filtering face mask 10 that has a mask body and a new exhalation valve 14. The mask body is adapted to fit at least over the nose and mouth of a person to help define an interior gas space when the mask is worn. The exhalation valve 14 permits... | 03/13/2007 |
| 7163027 | Air tap assembly An air tap assembly includes a mounting seat, a gasket, a connecting member, and an end cap. Thus, the sealing portion of the first mounting cap of the connecting member is rested on the gasket to interrupt the connection between the vent holes of the first mounting... | 01/16/2007 |
| 7096884 | Check valve A check valve comprising a poppet urged by a conical spring to annularly seal uniformly around its entire periphery to assure more uniform cracking pressure about its entire periphery. The cracking pressure may be adjusted by means of an adjustable plate which reduc... | 08/29/2006 |
| 7074020 | Sanitary pump and sanitary valve A sanitary pump and sanitary valve is provided employing a dual action piston for providing a constant pressure metering and delivery of fluids utilizing a drive shaft positively driven and controlled by a drive motor for sanitary applications. The sanitary pump may... | 07/11/2006 |
| 7051756 | Two stage metered relief check valve A pressure relief valve includes a cylindrical poppet having a fluid metering stem. The valve is configured such that the effective surface area of the transverse aspect of the poppet exposed to fluid pressure during a closed valve condition is greater than the effe... | 05/30/2006 |
| 7036523 | Serviceable check valve Within a check valve, a spring urges a poppet into the closed position. If the fluid flow through the valve attempts to reverse, the poppet will seal against the valve seat by a combination of spring resistance and fluid pressure, thereby preventing all or a signifi... | 05/02/2006 |
| 7007591 | Steam valve for a coffee maker A steam valve for a coffee maker comprises a valve, a valve seat, a valve block, a spring, a steam tube and a cap, wherein the valve has a plate on the top, the valve seat has a through hole, notches interconnected with the through hole, and a conical hole underneat... | 03/07/2006 |
| 6953325 | Safety device to limit pressure in an axial-piston compressor housing A safety device limits the pressure in an axial-piston compressor with variable piston displacement. The compressor has as wobble plate or swash plate whose tilt angle can be variably controlled by the pressure differential between the high pressure in the discharge... | 10/11/2005 |
| 6929088 | Power steering system A power steering system includes a rotary slide valve which has a housing, an input shaft and an output shaft which can be rotated relative to each other to a limited extent. A centering piston is provided which is non-rotatably and axially movably connected with th... | 08/16/2005 |
| 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 |
| 6910871 | Valve guide and spring retainer assemblies Valve guide and spring retainer assemblies are described for use in plunger pump housings that incorporate structural features for stress-relief. These pump housing structural features accommodate correspondingly-shaped valve guides and/or spring retainers that are ... | 06/28/2005 |
| 6729347 | Device for pressure regulation The invention relates to a device (10) for pressure regulation, having a housing (11) and a closing body (12) received axially movably therein, wherein the housing (11) has at least one pressure medium inlet (21) and one pressure m... | 05/04/2004 |
| 6623259 | High pressure plunger pump housing and packing Y-block or right-angular fluid section plunger pump housings have cylinder, suction, discharge and/or access bores which are transversely elongated within transition areas for interface with other bores to provide internal access, stress relief and a redu... | 09/23/2003 |
| 6532987 | Relief valve A relief valve having a cylindrical case with one side thereof communicated with a fluid-pressure source, a relief piston accommodated in the cylindrical case and slidable therein, a return spring for pressing the relief piston against the fluid-pressure ... | 03/18/2003 |
| 6397884 | Connection structure and valved connection member A connection member includes a nipple portion formed at one end and a first end face portion formed at an end part of the nipple portion. A valve cap includes a small-diameter portion; a large-diameter portion; a valve seat portion having a valve seal sur... | 06/04/2002 |
| 6343724 | Unitary one-way valve for fluid dispenser A valve assembly for a fluid dispensing unit, particularly for a soap dispenser, comprising a resilient valve member secured within a chamber. Valve member comprises a sealing member, a support member and a securement member. The support member carries se... | 02/05/2002 |
| 6314753 | Supercooling degree-controlled expansion valve To achieve a silent, noiseless operation supercooling degree-controlled expansion valve 10 wherein vibration of a valve element 14 induced by refrigerant flow changes is suppressed and a spring 18 presses valve element 14 in an oblique direction inclined ... | 11/13/2001 |
| 6209527 | Pressure regulating valve A pressure regulating valve has a valve chamber having an inlet for connecting to a pressure source, a discharge chamber communicating through a valve opening with the valve chamber, a valve member, a valve seat surrounding the valve opening, a valve clos... | 04/03/2001 |
| 6009895 | Free rotating inlet check valve for inflatable devices An inlet check valve for use with inflatable buoyancy tubes such as are used on life rafts and escape slides. The inlet check valve being freely rotatable within the flange affixed to the raft fabric thereby allowing for easier packing and deployment due ... | 01/04/2000 |
| 6006782 | Snubber valve A snubber valve is described which comprises a valve member slidable within a bore provided in a valve body. The valve member includes a region arranged to engage a seating, a spring biasing the valve member towards the seating. The spring engages a sprin... | 12/28/1999 |
| 5996619 | Control valve A control valve having a sliding valve member body movable into valve closing position against a valve seat in an outflow conduit. The body has a conical outer end for controlling the flow through the valve and a plurality of fins extending radially from ... | 12/07/1999 |
| 5921274 | Internal relief and bypass valve for pumps and piping systems A pressure relief or fluid bypass valve is provided which includes a valve body comprising a first piston, a second piston and a seating land disposed between the first and second pistons. The first piston is directed toward the discharge side of the flui... | 07/13/1999 |
| 5918619 | Safety pressure relief valve assembly, components therefor and methods of making the same A safety pressure relief valve assembly is provided wherein the safety pressure relief valve assembly has a first tubular body with a first end and a second end, a wall of given thickness with a bore through the body with an internal flange and a valve su... | 07/06/1999 |
| 5901743 | Valve system, especially for use in veterinary syringes A valve system, especially for use in a veterinary syringe, comprises a valve body which is arranged in a valve space formed between a first part having a valve seat and a second part which presses the valve body against the valve seat under influence of ... | 05/11/1999 |
| 5692538 | Undersea hydraulic coupling member An undersea hydraulic coupling member is disclosed having angled flow ports to prevent ingress of debris into the hydraulic lines, and having a bleed passage to allow trapped hydraulic fluid to bleed off when the coupling members are disconnected. The pop... | 12/02/1997 |
| 5605449 | Suction and discharge valve arrangement for a high pressure piston pump There is provided a fluid side of a high pressure water pump is to be used with a pump having a power side which has at least one piston and at least one stuffing box. The fluid side consists of a unitary substantially block shaped fluid end which defines... | 02/25/1997 |
| 5511583 | Compressor valve A valve for intake or exhaust of gas with respect to a compressor comprises a seating plate and a guard plate releasably attached in opposed relation. The seating plate has a plurality of clusters of holes extending from an outer side of the seating plate... | 04/30/1996 |
| 5482077 | High pressure abrasive slurry check valve A piston check valve for use in a system which conveys abrasive materials includes a gland nut which connects the valve to the piping system, a valve body mounted on the gland nut, a valve seat mounted on the valve body, and a piston mounted within the va... | 01/09/1996 |
| 5462413 | Disposable relief valve seat for positive displacement pump A positive displacement pump includes a relief valve comprising an valve seat, a needle within the valve seat, a spring forcing the needle within the valve seat, a set screw pressing the spring against the needle and a spacer for mounting the set screw to... | 10/31/1995 |
| 5332000 | Low pressure sensitive valve A close tolerance fluid pressure relief or check valve includes a one-piece silicone poppet within a valve body. The poppet makes line contact with a concave seat surface at the inlet end of the body when the poppet is closed. A stem of the poppet extends... | 07/26/1994 |
