Patents by Inventor Preston Weintraub
Preston Weintraub has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11976738Abstract: A hydraulic control circuit component such as a valve is configured which sliding surfaces. At least one of the sliding surfaces is configured as a single crystal material, such as ruby or sapphire.Type: GrantFiled: February 17, 2020Date of Patent: May 7, 2024Assignee: Proserv Operations, Inc.Inventor: Preston Weintraub
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Publication number: 20230332705Abstract: A pressure relief valve includes a valve body including a monitored pressure inlet leading to a monitored pressure region, a piston having a shear seal bore and a surface facing the monitored pressure region, a vent passage and a the shear seal assembly comprising a seal plate having a sealing surface thereon, and the shear seal assembly includes a sealing surface facing the seal plate and having a first annular area, and a first surface having an annular surface area at least twice as large as the first area of the sealing surface, the first surface facing away from the first area, and a biasing seal in contact with the first surface.Type: ApplicationFiled: June 26, 2023Publication date: October 19, 2023Inventors: Andy PATTERSON, Gerardo MARTINEZ, Preston WEINTRAUB
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Patent number: 11713824Abstract: A shear seal includes a seal plate having a first seal surface and a sliding seal assembly having a second seal surface, and at least one of the first and second sealing surfaces comprise an insert comprising a material different than that of the seal plate or the sliding seal connected to the seal plate or sliding seal assembly by a compressed member disposed between the insert and the adjacent surface of seal plate or sliding seal assembly.Type: GrantFiled: July 2, 2021Date of Patent: August 1, 2023Assignee: Proserv Gilmore Valve LLCInventor: Preston Weintraub
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Patent number: 11686402Abstract: A pressure relief valve includes a valve body including a monitored pressure inlet leading to a monitored pressure region, a piston having a shear seal bore and a surface facing the monitored pressure region, a vent passage and a the shear seal assembly comprising a seal plate having a sealing surface thereon, and the shear seal assembly includes a sealing surface facing the seal plate and having a first annular area, and a first surface having an annular surface area at least twice as large as the first area of the sealing surface, the first surface facing away from the first area, and a biasing seal in contact with the first surface.Type: GrantFiled: February 28, 2022Date of Patent: June 27, 2023Assignee: Proserv Gilmore Valve LLCInventors: Andy Patterson, Gerardo Martinez, Preston Weintraub
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Patent number: 11578558Abstract: A choke includes a cage having a plurality of openings extending therethrough, a first fluid port and a second fluid port, the openings in the cage fluidly interposed between the first and second fluid ports, and a selectively positionable blocking member positioned with respect to the openings to selectively overlie all of a portion of the openings, wherein the surface of the opening extending through the cage are a single crystal material. The single crystal material may be provided as an insert, having an opening therethrough, secured in position with respect to the cage.Type: GrantFiled: August 5, 2021Date of Patent: February 14, 2023Assignee: Proserv Gilmore Valve LLCInventors: Preston Weintraub, Ryan Bludau
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Publication number: 20220243831Abstract: A pressure relief valve includes a valve body including a monitored pressure inlet leading to a monitored pressure region, a piston having a shear seal bore and a surface facing the monitored pressure region, a vent passage and a the shear seal assembly comprising a seal plate having a sealing surface thereon, and the shear seal assembly includes a sealing surface facing the seal plate and having a first annular area, and a first surface having an annular surface area at least twice as large as the first area of the sealing surface, the first surface facing away from the first area, and a biasing seal in contact with the first surface.Type: ApplicationFiled: February 28, 2022Publication date: August 4, 2022Inventors: Andy PATTERSON, Gerardo MARTINEZ, Preston WEINTRAUB
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Patent number: 11261982Abstract: A pressure relief valve includes a valve body including a monitored pressure inlet leading to a monitored pressure region, a piston having a shear seal bore and a surface facing the monitored pressure region, a vent passage and a the shear seal assembly comprising a seal plate having a sealing surface thereon, and the shear seal assembly includes a sealing surface facing the seal plate and having a first annular area, and a first surface having an annular surface area at least twice as large as the first area of the sealing surface, the first surface facing away from the first area, and a biasing seal in contact with the first surface.Type: GrantFiled: June 22, 2020Date of Patent: March 1, 2022Assignee: Proserv Gilmore Valve LLCInventors: Andy Patterson, Gerardo Martinez, Preston Weintraub
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Publication number: 20220042394Abstract: A choke includes a cage having a plurality of openings extending therethrough, a first fluid port and a second fluid port, the openings in the cage fluidly interposed between the first and second fluid ports, and a selectively positionable blocking member positioned with respect to the openings to selectively overlie all of a portion of the openings, wherein the surface of the opening extending through the cage are a single crystal material. The single crystal material may be provided as an insert, having an opening therethrough, secured in position with respect to the cage.Type: ApplicationFiled: August 5, 2021Publication date: February 10, 2022Inventors: Preston WEINTRAUB, Ryan BLUDAU
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Publication number: 20210356052Abstract: A shear seal includes a seal plate having a first seal surface and a sliding seal assembly having a second seal surface, and at least one of the first and second sealing surfaces comprise an insert comprising a material different than that of the seal plate or the sliding seal connected to the seal plate or sliding seal assembly by a compressed member disposed between the insert and the adjacent surface of seal plate or sliding seal assembly.Type: ApplicationFiled: July 2, 2021Publication date: November 18, 2021Inventor: Preston WEINTRAUB
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Patent number: 11054050Abstract: A shear seal includes a seal plate having a first seal surface and a sliding seal assembly having a second seal surface, and at least one of the first and second sealing surfaces comprise an insert comprising a material different than that of the seal plate or the sliding seal connected to the seal plate or sliding seal assembly by a compressed member disposed between the insert and the adjacent surface of seal plate or sliding seal assembly.Type: GrantFiled: August 2, 2019Date of Patent: July 6, 2021Assignee: PROSERV OPERATIONS INC.Inventor: Preston Weintraub
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Patent number: 11022226Abstract: A valve configured to selectively communicate fluid pressure therethrough includes a valve body having an inlet, an inlet bore extending inwardly of the body from the inlet, a reduced diameter bore, a cam bore, and an outlet bore therein, the outlet bore in fluid communication with the cam bore, and the cam bore including a sloped wall therein extending inwardly on the cam bore in the direction away from the inlet bore, a first piston disposed in the a reduced diameter bore and including a piston passage therethrough fluidly communicating between the inlet bore and the cam bore, a cam disposed in the cam bore and having a self-energizing seal and a lower angled surface engagable against the sloped wall, the self-energizing seal disposed in a seal piston bore therein, and an outlet extending to the exterior of the valve body and opening into the lower angled surface.Type: GrantFiled: March 19, 2019Date of Patent: June 1, 2021Assignee: Proserv Operations, Inc.Inventor: Preston Weintraub
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Publication number: 20200408316Abstract: A pressure relief valve includes a valve body including a monitored pressure inlet leading to a monitored pressure region, a piston having a shear seal bore and a surface facing the monitored pressure region, a vent passage and a the shear seal assembly comprising a seal plate having a sealing surface thereon, and the shear seal assembly includes a sealing surface facing the seal plate and having a first annular area, and a first surface having an annular surface area at least twice as large as the first area of the sealing surface, the first surface facing away from the first area, and a biasing seal in contact with the first surface.Type: ApplicationFiled: June 22, 2020Publication date: December 31, 2020Inventors: Andy PATTERSON, Gerardo MARTINEZ, Preston WEINTRAUB
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Publication number: 20200182367Abstract: A hydraulic control circuit component such as a valve is configured which sliding surfaces. At least one of the sliding surfaces is configured as a single crystal material, such as ruby or sapphire.Type: ApplicationFiled: February 17, 2020Publication date: June 11, 2020Inventor: Preston WEINTRAUB
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Patent number: 10591076Abstract: A hydraulic control circuit component such as a valve is configured which sliding surfaces. At least one of the sliding surfaces is configured as a single crystal material, such as ruby or sapphire.Type: GrantFiled: September 14, 2017Date of Patent: March 17, 2020Assignee: PROSERV OPERATIONS, INC.Inventor: Preston Weintraub
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Patent number: 10584561Abstract: A pressure regulator for dirty fluid service includes: a body having a chamber, a pair of supply sockets, and an outlet port, each socket and the port formed through a wall of the body; a pair of supply seal plates disposed in the supply sockets and having supply passages formed therethrough; and a sliding seal assembly disposed in the chamber. The sliding seal assembly includes: a seal carrier having a piston and a supply gland; and a supply seal disposed in the supply gland. The piston is disposed in a pilot portion of the chamber. The outlet port and sockets are located adjacent to a regulated portion of the chamber. The piston is operable to move the sliding seal assembly between a supply position and a second position in response to pressure differential between the pilot portion and the regulated portion.Type: GrantFiled: May 25, 2018Date of Patent: March 10, 2020Assignee: Proserv Operations, Inc.Inventors: Preston Weintraub, Joseph Quackenbush
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Publication number: 20200049270Abstract: A shear seal includes a seal plate having a first seal surface and a sliding seal assembly having a second seal surface, and at least one of the first and second sealing surfaces comprise an insert comprising a material different than that of the seal plate or the sliding seal connected to the seal plate or sliding seal assembly by a compressed member disposed between the insert and the adjacent surface of seal plate or sliding seal assembly.Type: ApplicationFiled: August 2, 2019Publication date: February 13, 2020Inventor: Preston WEINTRAUB
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Publication number: 20190293196Abstract: A valve configured to selectively communicate fluid pressure therethrough includes a valve body having an inlet, an inlet bore extending inwardly of the body from the inlet, a reduced diameter bore, a cam bore, and an outlet bore therein, the outlet bore in fluid communication with the cam bore, and the cam bore including a sloped wall therein extending inwardly on the cam bore in the direction away from the inlet bore, a first piston disposed in the a reduced diameter bore and including a piston passage therethrough fluidly communicating between the inlet bore and the cam bore, a cam disposed in the cam bore and having a self-energizing seal and a lower angled surface engagable against the sloped wall, the self-energizing seal disposed in a seal piston bore therein, and an outlet extending to the exterior of the valve body and opening into the lower angled surface.Type: ApplicationFiled: March 19, 2019Publication date: September 26, 2019Inventor: Preston WEINTRAUB
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Patent number: 10385982Abstract: A poppet valve is provided wherein the poppet and seat are integrally aligned to a bore within a housing of the valve. The poppet is configured to reciprocate within a guide also aligned to the bore, and a spring is provided between the guide and the poppet to bias the poppet against the seat. The poppet guide is positioned, with respect to the bore, by having an alignment portion thereof fixed in a feature of the housing in which it extends, and a second housing secures the feature in the first housing. A pilot, selectively positionable by a piston, is provided to mechanically move the poppet off of the seat.Type: GrantFiled: November 21, 2016Date of Patent: August 20, 2019Assignee: Proserv Operations, Inc.Inventors: Andy Patterson, Preston Weintraub, Billy W. Pilant, Jr.
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Patent number: 10364893Abstract: A key seal preferably includes a first circular seal portion, a second rounded seal portion and a third rounded seal portion. The first circular seal portion preferably has generally circular cross-section. The second rounded seal portion preferably has a bottom side which is connected to the first seal portion, and has a cross-section which is smaller than that of the first circular seal portion. The third rounded seal portion preferably has a top side which is connected to the first seal portion, and has a cross-section which is smaller than that of the first circular seal portion. The first, second and third seal portions may be integrally formed. They key seal may be installed in a hydroseal assembly around the pin section of a hydroseal, and between a seal and a block section of the hydroseal.Type: GrantFiled: August 8, 2016Date of Patent: July 30, 2019Assignee: PROSERV OPERATIONS, INC.Inventors: Preston Weintraub, Joseph Quackenbush
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Patent number: 10196877Abstract: A directional control valve includes: a base and a slider longitudinally movable relative to the base. The base includes: a rectangular body having a longitudinal bore, a transverse bore, and a chamber formed at an intersection between the bores; supply and function seal plates, each having a stinger disposed in the transverse bore, one or more receptacles, and a passage extending from each receptacle through the stinger; and a supply, first function, and second function blocks, each fastened to the body and having a stinger disposed in the respective receptacle and a coupling for connection to a flow line. The slider includes: a sliding seal assembly disposed in the chamber; and an operating rod fastened to the seal assembly.Type: GrantFiled: October 24, 2014Date of Patent: February 5, 2019Assignee: Proserv Operations, Inc.Inventor: Preston Weintraub