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公开(公告)号：US20190128435A1
公开(公告)日：2019-05-02
申请号：US16233711
申请日：2018-12-27
发明人： Nadiya Fuller , Nuder Said , Brian C. Witkowski
CPC分类号： F16K15/033 , F16K27/0227 , F16K47/00
摘要： A valve assembly adapted for use in oil and gas operations. In one aspect, the valve assembly includes a valve body defining an internal region, an inlet passageway, and an outlet passageway, the inlet and outlet passageways extending into the internal region; a valve seat connected to the valve body and defining a fluid passageway; a clapper extending within the internal region and defining an annular groove; and a seal extending within the annular groove of the clapper and adapted to sealingly engage the valve seat. In an example embodiment, the clapper is actuable between an open configuration, in which fluid flow is permitted through the fluid passageway; and a closed configuration, in which the seal sealingly engages the valve seat to at least partially restrict fluid flow through the fluid passageway.
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公开(公告)号：US20180051903A1
公开(公告)日：2018-02-22
申请号：US15240540
申请日：2016-08-18
发明人： Anthony Carroll Monk
CPC分类号： F24F13/1406 , F16K1/2007 , F16K15/031 , F16K15/033 , F16K31/084 , F24F12/006 , Y02B30/563
摘要： An apparatus includes a frame and a damper blade moveable between a closed position and an open position. A biasing member is coupled to the frame and exerts a biasing force to urge the damper blade towards a substantially closed position. A magnet coupled to the damper blade exerts a magnetic force to pull the damper blade from the substantially closed position to the closed position. When the damper blade is in the open position and an upstream airflow pressure falls below a first predetermined threshold, the biasing member moves the damper blade to the substantially closed position, and the magnetic force then pulls the damper blade to the closed position, automatically inhibiting airflow through the frame. When the damper blade is in the closed position and an upstream airflow pressure is increased to a second predetermined threshold, the damper blade is released from the closed position.
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公开(公告)号：US20180016792A1
公开(公告)日：2018-01-18
申请号：US15652071
申请日：2017-07-17
CPC分类号： E04D13/08 , A01M29/30 , E03F7/06 , E04D2013/0806 , F16K15/033 , F16K31/12 , F16L37/02 , F16L55/24
摘要： Methods, systems and devices for a check valve for deterring intrusion into downspouts include a body member having at least a first orifice and are configured to mount on a downspout, where the downspout is adapted to promote fluid flow in a single direction. Pivotably mounted on the body members are various valve members. The mounting arrangement can provide a closed position that substantially occludes the first orifice and a range of open positions when the valve member is pivoted with respect to the body member to open in the flow direction. In addition, at least one additional orifice can be provided in either the body member or the valve member to permit fluid flow irrespective of the position of the valve member.
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公开(公告)号：US09863546B2
公开(公告)日：2018-01-09
申请号：US14813422
申请日：2015-07-30
申请人： River Rock Inc.
发明人： Chao Chi Chen , Michael Chiang
CPC分类号： F16K15/033 , F16K24/06
摘要： An air admittance valve preventing mephitis overflow, having a main body with an air entry guide base defining an air entry guide; a pivot support; and a valve seat. A sealing valve group having a sealing valve body that defines a recess; a flexible member; a pivot housing; and a pivot. The valve seat is located about the air entry guide. The pivot is located in the pivot housing and the pivot support, and the pivot is located along, or adjacent to, the center of gravity of the sealing valve body. The flexible member is at least partially located in the recess and abuts the main body; and when the air admittance valve is closed, the sealing valve body abuts the valve seat.
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公开(公告)号：US20170370088A1
公开(公告)日：2017-12-28
申请号：US15632908
申请日：2017-06-26
申请人： Boxes Direct Limited
发明人： Mark Andrew Jones , Julie Jones , Joseph Doyle , Maurice Doyle
CPC分类号： E03D11/17 , E03D11/10 , F16K15/028 , F16K15/033 , F16K31/12
摘要： A method of controlling the discharge of waste water from a toilet includes the installation of a valve in the discharge outlet of the toilet, the valve including a valve body and a spring-loaded valve closure member that is movable relative to the valve body into an open position during flushing of the toilet against the action of its spring-loading and which is returned to the closed position by the action of its spring-loading on completion of the flushing operation.
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公开(公告)号：US09850798B1
公开(公告)日：2017-12-26
申请号：US14999269
申请日：2016-04-15
申请人： Alexander Borla
发明人： Alexander Borla
CPC分类号： F01N13/08 , F01N2240/36 , F01N2390/00 , F02D9/04 , F02D9/103 , F02D9/16 , F16K3/04 , F16K15/033 , F16K27/045 , F16K31/12
摘要： A fluid flow control unit, in a preferred embodiment, mounted on a section of pipe having a tubular wall forming a fluid flow passage with a flow axis, the unit having a gate section, and a gate pivot section, the pivot section having a body portion mounted on the pipe outer wall surface, a gate mounting cavity formed in the body portion and opening through the pipe wall and providing an access port for the gate section to the mounting cavity, a pivot shaft positioned in the cavity and mounted on bearing structure on the body portion, the diameter of the shaft being dimensioned to allow a laterally curved gate which is affixed to a surface portion of the shaft to pivot up against a ceiling of the pipe to thereby be out of the flow passage main stream at a full open, non-blocking position of the gate, and a gate position control structure on the unit for allowing predetermined degrees of rotation of the pivot shaft in response to the magnitude of fluid flow pressure forces directed against the gate.
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公开(公告)号：US20170292646A1
公开(公告)日：2017-10-12
申请号：US15633838
申请日：2017-06-27
申请人： Guilboa S.A.C.
发明人： Micha Hadas
CPC分类号： F16L29/007 , A01G25/023 , A01G25/165 , F16K15/033 , F16K15/063 , F16K27/0227 , F16L33/30
摘要： A valve comprising a shoulder, a movable check member having a wall facing the shoulder and a coupling member. The movable check member is adapted to prevent fluid passage through or out of the valve when in contact with the shoulder. The coupling member is adapted to displace the movable check member away from the shoulder responsive to the pressure being applied on the wall exceeding a predetermined threshold. The coupling member is further adapted to retract and maintain the movable check member secured against the shoulder responsive to the fluid flow pressure at the wall dropping below the threshold.
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公开(公告)号：US09784154B2
公开(公告)日：2017-10-10
申请号：US14863272
申请日：2015-09-23
发明人： Young-Dug Yang
CPC分类号： F01N1/163 , F01N1/165 , F01N1/166 , F01N1/168 , F01N2260/14 , F01N2390/08 , F16K15/033 , F16K15/035
摘要： A variable valve may include a housing having hinge support portions protruding from a first side thereof, and an opening at a second side thereof, a first gate rotatably coupled to the hinge support portions so as to open and close a part of the opening, a first spring mounted on the housing to apply elastic force in a direction in which the first gate is closed, a second gate rotatably coupled to the hinge support portions so as to open and close a remaining part of the opening, and a second spring mounted on the housing to apply elastic force in a direction in which the second gate is closed, in which the first spring and the second spring may have different spring constants.
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公开(公告)号：US20170225021A1
公开(公告)日：2017-08-10
申请号：US15501378
申请日：2015-08-03
CPC分类号： A62C35/68 , F16K7/126 , F16K15/033 , F16K31/02 , F16K37/0041
摘要： Automatic fluid control assemblies and methods for fire protection include an arrangement of electrically operated control points, a valve body and a controller to operate the fluid control assembly. The automatic fluid control assembly has an inlet, an outlet and a valve body to control flow between the inlet and the outlet. An electric latch includes a first electrically operated control point and a second electrically operated control point in fluid communication with a control line to control the flow of fluid from the inlet to the valve body and outlet. The methods of fluid control include controlling a plurality of electrically operated control points to perform any one of: a leak test, a trip test, a flow test, a water delivery test, and a validation test of a non-trip condition and a trip condition.
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公开(公告)号：US09611947B2
公开(公告)日：2017-04-04
申请号：US14734098
申请日：2015-06-09
IPC分类号： F16K15/03 , F02C7/26 , F16K11/052
CPC分类号： F16K15/033 , F02C7/26 , F05D2260/85 , F16K11/044 , F16K11/052 , Y02T50/671 , Y10T137/2544 , Y10T137/2554
摘要： A valve assembly includes a plenum having first, second, and third air source ports, a flapper valve assembly pivotally movable between a first position, where the first air source port is closed by the flapper valve assembly and the second and third air source ports are open and in fluid communication, and a second position, where the second air source port is closed by the flapper valve assembly and the first and third air source ports are open and in fluid communication and a method of controlling fluid flow via a valve assembly.
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