Class 251/365 - Retained by seat deformation

Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter in which the seat is retained in position
No. of patents: 24
Last issue date: 06/07/2011

Number	Title	Issue Date
7954788	Methods and apparatus to align a seat ring in a valve Methods and apparatus to align a seat ring in a valve are described. An example fluid valve includes a valve body having a curved internal surface to receive a seat ring and a seat ring having a sealing surface to receive a movable control member and a curved surfac...	06/07/2011
7360558	Control valve for drinking water fountain A control valve for a drinking water fountain includes a valve housing having an inside formed with a receiving chamber, and a valve seat mounted in the receiving chamber of the valve housing. The valve seat is forced into the receiving chamber of the valve housing ...	04/22/2008
6929244	Interference-fit seal for gate valves A gate valve has seat rings pressed into counterbores to form seals. Each counterbore is located at an intersection of a flow passage with a central cavity of a body of the gate valve. The counterbore has a cylindrical constant diameter sidewall. The seat ring has a...	08/16/2005
6832750	Back seating valve with service port A back seating valve includes a valve body enclosing a valve plug with a threaded through-bore; and a valve element with a threaded valve stem and valve head. The valve plug and valve stem are initially preassembled, and then inserted into the valve body. The valve ...	12/21/2004
5697382	Heart valve assembly method A method of assembling a heart valve is provided for use with an inner and a spreadable outer stent. The outer stent is mounted onto a spreading tool including a spreading ring, and expander, and a plunger. A protective cap is placed over the outer stent ...	12/16/1997
5522885	Assembly tooling for an autologous tissue heart valve An assembly tool for a bioprosthetic heart valve is disclosed. The tool assembles a valve having an inner and a spreadable outer stent, and includes a spreading ring with an elevated lip to hold the spread outer stent, an expander having fingers which con...	06/04/1996
5323811	Fluid coupling with automatic sealing valves A fluid coupling wherein a tubular socket has a first terminal connectable with a first pipe and a section for reception of a section of a tubular plug further having a second terminal connectable with a second pipe. The axial passage of the socket contai...	06/28/1994
5267723	Self-aligning lead-in chamfer for a valve seat Lead-in of a valve seat member being pressed into a valve body bore has larger angle initial lead-in portion followed by smaller angle transition lead-in portion leading to press-fit outside diameter. This prevents a maximally misaligned valve seat member...	12/07/1993
5184804	Contamination containment device A saw-tooth shaped groove around the outside of a valve seat cooperates with the wall of a bore into which the valve seat is pressed to capture material displaced from the wall of the bore during the step of pressing the valve seat into the bore....	02/09/1993
5183076	Unidirectional flow limiter The unidirectional limiter comprises a body, each of the ends of which is provided with a connection, a closure member mounted movably between a seat and an abutment element and a throttle ring mounted rotatably on the body of the valve for modifying the ...	02/02/1993
5131627	Diaphragm valve A diaphragm valve includes a single layer, metal diaphragm cooperating with a plastic valve seat. The surface area and volume of the valve seat is limited. Additionally, the central portion of the diaphragm is generally hemispherically offset and extends ...	07/21/1992
4766927	Abrasive fluid control valve with plastic seat A valve to control abrasive fluids under high pressure has a plastic seat. A circular ridge peripherally formed on the valve cartridge sealingly engages the seat. A means is provided within the valve cartridge to support the seat axially and radially. The...	08/30/1988
4691734	Valve seals A pressure relief valve adapted in use to relieve excess pressure within a vessel. The valve comprises a valve seat (20) and a moveable valve member (28) which is resiliently biased towards the valve seat (20) by coil springs (30) to maintain the valve in...	09/08/1987
4676482	Valve seat insert The present invention provides a valve seat insert (10) design which has improved heat transfer properties and thus results in improved engine performance. The insert (10) includes a pilot flange (12), a locking flange (15), and an annular groove (20) def...	06/30/1987
4660805	Device for shutting off a pipe The invention relates to a device for shutting off a pipe using generally U-shaped spring steel strips as sealing elements, each such element comprising a pair of arms which converge toward one another form an arcuate web at an acute angle. The deformatio...	04/28/1987
4531710	Expanding gate valve There is disclosed an expanding gate valve having seats which are press-fitted into annular recesses in the valve body on opposite sides of the gate, each seat including a ring having at least one annular rib on its outer end which is of a harder material...	07/30/1985
4527773	Shut-off valve with a seal formed from an elastic strip A shut-off valve, particularly for use in a pipeline for conveying gases, includes a valve casing, a valve member mounted for movement between a valve open position and a valve closed position, and a casing seal mounted on at least one of the valve casing...	07/09/1985
4501299	Plunger-type valve A three-way valve assembly having a reciprocable valve plunger movably controlled by a solenoid. The valve housing has an elastomeric orifice member seated thereon, which orifice member controls flow of pressure fluid from a source. The valve plunger has ...	02/26/1985
4477055	Valve seat for ball valves A ball valve structure (10) having a valve seat assembly (46) positioned in annular seat pockets located in a flow passage (14) on opposed sides of a ball valve member (18). Each valve seat assembly is mounted for limited longitudinal movement toward and ...	10/16/1984
4266753	Butterfly valve In a butterfly valve comprising a valve housing including a cylindrical fluid passage and a disc-shaped valve body rotatable within the housing, a hard annular seat provided in the housing and a hard annular rim defined on the periphery of the valve body ...	05/12/1981
4141537	Valve seat construction for butterfly valves A butterfly valve assembly having a corrosive resistant metal valve seat made of stainless steel or the like and supported in the passage of the body member of the valve assembly, the valve assembly further having a valve disc with an annular resilient se...	02/27/1979
4047697	Valve seat-to-seat connection for easy installation and removal of seat A valve seat - to - body connection, and an installation therefor. A resilient metallic ring having an inside diameter slightly smaller than the outside diameter of a valve body in which the seat member is to be installed, is placed around the section of ...	09/13/1977
3967808	Irrigation valve with metal seat A diaphragm-type irrigation valve having a molded plastic body, and including a metal valve-seat ring with sidewalls embedded in the plastic body. The seat ring has a generally U-shaped cross-section, at least one ring sidewall being non-parallel to a cen...	07/06/1976
3948480	Rotary ball valve A rotary ball valve includes a seat support integral with the valve body, a rotatable ball, a movable seat support, a retaining ring, and, on opposite sides of the ball, thin annular seating rings made from a material, such as tetrafluoroethylene. When th...	04/06/1976

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Class 251/365 - Retained by seat deformation