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Class 251/170 - Seat pressed to valve


Subclass of Class 251 - Valves and valve actuation
Definition: Devices having means to press or urge a seat against a valve
No. of patents: 35
Last issue date: 03/04/2008


NumberTitleIssue Date
7337797Ball valve and method of manufacture
A ball valve having a ball valve assembly disposed within a unitary, elongated tube is provided. The unitary, elongated tube has a first, inlet end, a medial portion having a cross-sectional area, and a second, outlet end. The first, inlet end is a swedged tube havi...
03/04/2008
7303147Sprinkler having valve module with reciprocating valve seat
A sprinkler includes an outer case and a riser mounted for reciprocation within the case. The riser supports a nozzle, an impeller, and a drive linkage connecting the nozzle and the impeller. A diaphragm valve is mounted in outer case beneath the riser and includes ...
12/04/2007
7267323Ball valve with cartridge
A ball valve has a valve body having a chamber, aligned inlet and outlet passages providing flow therethrough, and an access passage communicating with the chamber. A replaceable cartridge assembly is seated in the chamber and includes a generally spherical ball hav...
09/11/2007
7210667Redundant 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
7134450Interior structure of water control valve for faucets
An interior structure of a water control valve for faucets includes a control valve body, a control valve stem, and a valve plug wherein the control valve body has an upper coupling end with a valve stem hole defined therein disposed at the upper step thereof, a pai...
11/14/2006
7066194Valve design and configuration for fast delivery system
Embodiments of the present invention relate to a method and apparatus for rapid delivery of pulses of one or more reactants to a substrate processing chamber. One embodiment of a valve body includes a first inlet, a second inlet, and an outlet. A valve chamber is in...
06/27/2006
6994321Reciprocating 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 45 degrees in relation to the axis connecti...
02/07/2006
6902145Regulating slide valve
Regulating slide valve comprising a valve body having a valve opening, and a valve plate which has two side surfaces and which is displaceable along a displacement path between an initial position in which it releases the valve opening and an end position in which i...
06/07/2005
6672563Ball valve having a magnetic seat sealing device
A ball valve having a magnetic seat sealing device comprises a valve body, a valve seat, a valve ball, a valve stem and a valve bonnet, wherein the valve seat is disposed within a valve body cavity of the valve body, the valve ball being rotatably dispose...
01/06/2004
6648001Valve with seat assembly
A rotary plug valve is disclosed in a preferred embodiment that has two telescoping seat assemblies that fit into respective recesses provided in the valve body surrounding a passageway through the plug valve. A valve chamber is formed in the valve body i...
11/18/2003
6378841Quarter-turn rotary plug valve with seats reciprocable during operation
A method and apparatus for controlling fluid flow with a quarter-turn plug valve with seats operated to lift off the sealing surface of the plug prior to plug rotation and to reseat upon completion of plug rotation. One embodiment shown relates to a quart...
04/30/2002
6340029Apparatus for opening/closing a valve and method thereof
A method and an apparatus for opening/closing a valve are provided. The method includes the steps of varying a position of a seat assembled into an inner side of a fluid passage of a valve body using a pneumatic pressure or a magnetic force so as to be se...
01/22/2002
6213450Valves
The invention provides a valve 10,30 for connecting first and second conduits 12,14. The valve 10,30 comprises; a valve member 16 rotatably mounted in a housing 18, to define a space 22 between the valve member 16 and the housing 18; and inflatable seal m...
04/10/2001
6123319Damper valve having an adjustable seat
A damper valve includes a base, a valve blade pivotally mounted on the base and two serially arranged valve seats. Each valve seat comprises adjustable valve seat portions on opposite sides of a pivot axis of the valve blade, the valve seat portions being...
09/26/2000
5681028Valve assembly
A valve assembly 20 includes a housing or bonnet 22 and a stem 24. The valve assembly 20 further includes a thrust washer 26, an O-ring 28, a reversible stop 30 and a retainer 32. A coupler 34, a rotatable ceramic disk 36, a fixed ceramic disk 38 and a bo...
10/28/1997
5676347Valve with adjustably pressurized sealing gaskets
A valve mechanism for installation in a pipe line for controlling the movement of a flowable material therein that comprises a central body section with end sections connected thereto and forming therewith a valve stopper chamber, the end sections each ha...
10/14/1997
5549275Valve with adjustably pressurized sealing gaskets
A valve mechanism for installation in a pipe line for controlling the movement of a flowable material therein which comprises a central body section with end sections connected thereto and forming therewith a valve stopper chamber, the end sections each h...
08/27/1996
5338001Valve apparatus
A valve assembly comprising: a valve seat having a first end, a second end, and a valve seat passageway extending therethrough from said first end to said second end; a valve ball assembly rotatably positionable adjacent the second end of the valve seat p...
08/16/1994
5165658Plastic ball valve ball seal means
A plastic ball valve having improved ball sealing means....
11/24/1992
5154397Peripheral knife gate seal
A trapezoidal shaped peripheral seal is inserted in a trapezoidal cast peripheral groove in the valve body. A relief cut-out is disposed beneath the peripheral groove. The sealing function is effected by loading the peripheral seal with the gate so as to ...
10/13/1992
5117858Top entry ball valves with cam adjustable seats
A top entry ball valve comprises a housing having an interior cavity sufficiently large to receive a conventional ball and conventional seat rings through an opening in the housing. After the ball/seat package has been inserted into the cavity, a cam arra...
06/02/1992
4815699Valve with resilient, bellows mounted valve seat
A rapid response poppet valve includes a valve body 10 with an internal cavity 16 in which a valve seat 100 is located. A poppet 70 is mounted for movement toward and away from the valve seat 100 and the valve seat 100 is resiliently biased toward the pop...
03/28/1989
4683906Trunnion type ball valve
A trunnion type ball valve arranged so that biasing means is not needed to establish a seal between the valve seats and the ball when the valve is in the closed position. There is no load on the valve seats in the open position and a sufficient load in th...
08/04/1987
4667926Ball valve
A ball valve in which, even when a connecting sleeve is removed by loosening the associated union nut, the ball and annular seals of the valve will not blow out of the valve body under fluid pressure. A ball with an integral spindle is arranged in the val...
05/26/1987
4635451Spring loaded valve for adding cryogenic liquid to a cryostat
A spring loaded valve for use with a cryostat insert is provided for selectively directing liquid cryogen to the bottom or top of a supercoolable vessel. The spring loaded valve situated at the tip of the insert extends into a housing in the top of the su...
01/13/1987
4497467Plug valve with hydraulically actuated seals
A rotary plug valve has hydraulically actuated seals for sealing between a valve body and a rotatable valve plug. The valve plug is rotated to open or close the valve. A valve handle for turning the plug can be rotatably uncoupled from the valve plug when...
02/05/1985
4424825Fast closing valve
A valve is provided for protecting the high vacuum of a particle accelera in the event of air leakage, wherein the valve provides an axially symmetrical passage to avoid disturbance of the partical beam during normal operation, and yet enables very rapid...
01/10/1984
4402337Valve provided with a thermally-actuated mechanism for pressing valve seats against a valve gate body
A valve for controlling the flow of fluids containing abrasive particles including thermally-actuated means for ensuring a tight seal between the movable valve element and the valve body in both the open and closed positions. The thermally-actuated means ...
09/06/1983
4364544Valve seat with sediment guard
Valve seat rings are provided having sediment guard recesses formed in the back face portions thereof, which recesses are in the form of annular grooves having restricted annular openings and defining an internal stop shoulder. A sediment guard is movably...
12/21/1982
4327895Ball valve
A ball valve having an externally threaded seal carrier, a ball, a seal disposed between the carrier and ball, a tubular valve body internally threaded to engage the external threads of the seal carrier and hold it in the body, an axial clearance between ...
05/04/1982
4235257Elastic seating element for a cutoff device
A seating element is positioned in a flow cutoff device. The seating element includes a central opening for conducting fluid flow. The flow cutoff device includes an apertured sealing member which slides across a seating portion of the seating element bet...
11/25/1980
4220314Butterfly valve structure
A butterfly valve construction for use particularly on pipelines through which fluid under pressure is adapted to flow and to be selectively cut off. The butterfly valve disc is rotatably supported within the valve casing. Within the valve casing at a reg...
09/02/1980
4174728Sliding-gate valve
This invention is a novel valve of the slidable-gate type. The valve is designed especially for long-term use with highly abrasive slurries. The sealing surfaces of the gate are shielded by the valve seats when the valve is fully open or closed, and the g...
11/20/1979
4174557Method of mounting valve seats in a butterfly valve
A method of mounting valve seats in a butterfly valve comprising a valve body mounted in a valve stem in a valve housing. The valve seats are attached to the valve housing so as to contact the periphery of the valve body when the valve is closed. End surf...
11/20/1979
4114639Lubricated rotary valve with concentric sealing rings
A rotary valve assembly comprising a housing defining a bore and a valve member mounted for rotation therewithin. The housing defines an opening and the valve member has a port which comes into and out of registration as the member rotates. Lubricant is s...
09/19/1978
 
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