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| Number | Title | Issue Date |
| 7628169 | Safety relief valve having a low blow-down value and spring therefore A safety relief valve is provided that comprises a body comprising a chamber therein and an inlet and an outlet, the inlet comprising an inlet valve seat; a disk member closable on the inlet valve seat; and a mechanism in the body biasing the disk member to rest on ... | 12/08/2009 |
| 7565914 | Control stop and flushing system A control stop for a flush valve for a urinal or toilet fixture includes a housing defining a flow chamber divided by a valve seat into inlet and outlet sections. A valve structure is biased toward the valve seat by a spring applying a valve closing spring force. Th... | 07/28/2009 |
| 7357150 | Safety shut-off device A safety shut-off device for sections of fluid circuits, which in case of damage or the like, have to shut off from each other on safety considerations. The safety shut-off device includes at least two valves connected to each other via a control chamber. A first pr... | 04/15/2008 |
| 7337796 | Safety relief valve having a low blow-down value and spring therefore A safety relief valve is provided that comprises a body comprising a chamber therein and an inlet and an outlet, the inlet comprising an inlet valve seat; a disk member closeable on the inlet valve seat; and a mechanism in the body biasing the disk member to rest on... | 03/04/2008 |
| 7334603 | Check valve A check valve has an elastic valve body portion and an inelastic valve body portion and a valve seat. The valve body is fixed to a valve shaft, and a valve body abutment plate for abutting the elastic valve body portion is supported to the valve shaft. The valve bod... | 02/26/2008 |
| 7322557 | Chemical liquid control valve A chemical liquid control valve is provided with a barrier on an outer circumferential end portion of a protruding part (an outer circumferential bottom portion of a valve seat). The barrier is placed so that an angle between the center line of an outlet passage and... | 01/29/2008 |
| 7267288 | Polyurethane in intimate contact with fibrous material A sprayable polymeric material and a process for preparing the material which contains a fibrous material, dispersed throughout the polymeric material. A restriction free spray nozzle is provided for mixing and spraying the polymeric material having a fibrous materi... | 09/11/2007 |
| 7264024 | Valve for closing a container, container and a system and method for filling container A valve for closing a container and for enabling the container to be filled has a housing (20) with an inlet port (30) and an outlet port (40). A closing member (60) is provided for sealingly closing the valve at the inlet port (30... | 09/04/2007 |
| 7245474 | Circuit arrangement and method for controlling a bistable magnetic valve A circuit arrangement and also a method for controlling a bistable magnetic valve in which a magnetic valve is to be supplied with a pulse of electrical current in order to switch over the magnetic valve from a first stable state into a second stable state, comprise... | 07/17/2007 |
| 7240768 | Flapper finger valve A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherei... | 07/10/2007 |
| 7234486 | Pressure limiting valve for fuel injection devices A pressure limiting valve is provided which has a valve body assigned on the high-pressure side to a valve seat and an operating piston combined with the valve body to form a unit. The valve body and the operating piston are jointly spring-loaded and bound a pressur... | 06/26/2007 |
| 7210497 | Pressure relief device with increased flow rate A pressure relief device for electrical equipment housing, includes a valve body having a pedestal that projects above a mounting flange and a table on the pedestal that supports a two-stage valve assembly that can be sized in diameter independently of the working a... | 05/01/2007 |
| 7201188 | Fluted reciprocating ball valve The device described herein is a valve suitable for the control or shut-off of fluid flow in a piping system. It comprises a valve housing having inlet and outlet ports and a cylindrical bore whose axis is slanted at about 90 degrees in relation to the axis connecti... | 04/10/2007 |
| 7125377 | Valve assembly The present invention relates to a valve assembly adapted to be positioned into a urethra in a mammal, including humans, the valve assembly comprising a) a valve holder and b) a valve housing comprising a valve controlling an urine flow from a patient's bladder, the... | 10/24/2006 |
| 7121813 | Reverse rotation preventing structure of centrifugal compressor The invention relates to a reverse rotation preventing structure of a centrifugal compressor. The reverse rotation preventing structure of the centrifugal compressor comprises: a discharge pipeline of the centrifugal compressor; a suction pipeline of the centrifugal... | 10/17/2006 |
| 7111637 | Enclosure system for pressure relief device An enclosure for a pressure relief device, particularly pressure relief devices mounted on electrical equipment housings, is pre-assembled together with the pressure relief device. The enclosure, which provides for temporarily confining and directing fluids discharg... | 09/26/2006 |
| 7077157 | Spring-loaded pressure relief valve, particularly for containers of pressurized fluids A spring-loaded pressure relief valve, particularly for containers of pressurized fluids, comprising a valve body that is associable with a container and forms a discharge port that is controlled by a main piston; an auxiliary valve is further provided, which contro... | 07/18/2006 |
| 7066201 | Valve device having solid engaging structure A valve device includes a housing including a peripheral valve seat extended into a chamber, to separate the chamber into two separated spaces. A valve member includes an outer peripheral groove to receive a sealing ring for engaging with the peripheral valve seat o... | 06/27/2006 |
| 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 |
| 7036756 | Anti-sputter fluid flow control apparatus for paint sprayers A fluid spray apparatus with a controlled supply of pressurized fluid delivered through a network of tubes to a spray head having a plurality of stop flow valves and nozzles that will automatically shut off the flow of fluid out of the nozzles when the pressure of t... | 05/02/2006 |
| 7028702 | Automatic water pressure control valve balancing temperature of mixed water The present invention discloses an automatic water pressure control valve balancing the temperature of mixed water, eliminating a cylinder enclosing the pressure control piston and multiple seal rings, to reduce the number of parts and to minimize the production cos... | 04/18/2006 |
| 7017605 | Valve assembly A valve assembly (112) includes a first member (120) having a cavity (136). A poppet (142) is located in the cavity (136) in the first member (120). The poppet (142) is axially movable relative to the first member ( | 03/28/2006 |
| 6935362 | Pilot valve There is provided a pilot valve (50), suitable for use in water and gas supply systems, the valve including biassing means (57), to control a gate (55), for controlling fluid flow through a control chamber (51), and a second chamber (5... | 08/30/2005 |
| 6899199 | Flapper finger valve assembly A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherei... | 05/31/2005 |
| 6668853 | Pressure relief valve with field-replaceable high corrosion-resistant components A pressure relief valve has a gasketed main body fastened to a vessel wall adjacent to a vent port, the body having a recess surrounding the port which receives a plastic insert removably coupled to the body by a retaining ring fastened to the main body. ... | 12/30/2003 |
| 6651696 | Relief valve A relief valve with two outlet ports increases the flow capacity of the valve when open. In an alternative embodiment, a relief valve with two outlet ports also has at least two springs stacked vertically. Alternative seal assemblies can be used with the ... | 11/25/2003 |
| 6516828 | Snap-type safety relief valve having a consistent low blow-down value A snap-type safety relief valve is provided that is designed for use under specified operating conditions on a pressure vessel or a flow line having a pressurized gas therein. The safety relief valve comprises: (a) a body attachable to the pressure vessel... | 02/11/2003 |
| 6514232 | Vacuum adjustment valve, particularly for thoracic drainage devices A vacuum adjustment valve, particularly for thoracic drainage devices, which comprises a valve body arranged in the air intake duct and tuning a first region connected to the intake duct and a second region connected to the drainage device. A regulator is... | 02/04/2003 |
| 6497248 | Pressure relief device with one piece gasket Disclosed is a pressure relief valve for attachment to a closed vessel having an opening to vent gas and liquids from the housing should the internal housing pressure rise to unacceptable levels. The pressure relief valve includes a single gasket that sea... | 12/24/2002 |
| 6488049 | Super sensitive, full flow, adjustable pressure valve A high volume pressure valve accurately adjustable to within 0.25 PSIG for attachment to a pipe outlet. A flanged valve body and a cap are connected by a compression spring to permit the opening of the valve when the predetermined outlet pressure setting ... | 12/03/2002 |
| 6354810 | Variable capacity type compressor with check value A variable capacity type compressor has a swash plate, pistons reciprocating in the cylinder bores, a suction chamber, and a discharge chamber. A check valve arranged in the compressor. The check valve has a valve seat member having a flow passage and a v... | 03/12/2002 |
| 6283138 | Pressure relief valve monitoring device A pressure relief valve monitoring device is provided. The monitoring device includes a sensor input module located proximate to a pressure relief valve, a microcontroller located within the sensor input module, and a real time clock/calendar also located... | 09/04/2001 |
| 6273116 | Method and device for opening a valve, especially a load changing valve of an internal combustion engine In a method for opening a valve, which valve separates a flow channel from a working chamber or connects it therewith and which is embodied as a plate valve that projects upon opening into the working chamber, energy is withdrawn from a flow from the work... | 08/14/2001 |
| 6237623 | Nonsurgical intraurethral bladder control device An improved self contained automatic bladder control device includes a valve assembly mount for releasibly receiving a valve assembly. The preferably cylindrical mount has a textured outer surface designed to interact with urethral tissue. Thus the mount ... | 05/29/2001 |
| 6189562 | Overflow valve For operating pumps above the respective system resistance for all volume flows, for a spring-loaded, directly acting overflow valve for limiting the pressure in a system in which a liquid is lifted by a positive-displacement pump and flows through the sy... | 02/20/2001 |
| 6174151 | Fluid energy transfer device A trochoidal gear pump or engine uses a coaxial hub with the outer and/or inner rotor and an associated rolling element bearing assembly that preferably uses pre-loaded bearings to precisely set the rotational axis and/or the axial position of the rotor w... | 01/16/2001 |
| 6125822 | Two stage pressure relief valve A two stage pressure relief valve for releasing a fluid under pressure includes a body having a bore extending from an inlet and terminating in an outlet. A first chamber which communicates with the inlet and a second chamber which communicates with the f... | 10/03/2000 |
| 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 |
| 5844137 | Purge system To measure flow rates, the cross-sectional shape of the flow path is changed by inserting a multiple position gate into the flow path and altering the position of the gate to maintain the head of liquid constant with a reduced flow cross section. The posi... | 12/01/1998 |
| 5791373 | Fluid sealing disc and seat mechanism A fluid sealing mechanism suitable for use in valves. This mechanism is capable of self aligning to ensure precise and repeatable sealing of the valve inlet to outlet. Sealing is accomplished by a plurality of standoffs on one surface which engage a plura... | 08/11/1998 |
