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公开(公告)号：US20200240236A1
公开(公告)日：2020-07-30
申请号：US16756834
申请日：2017-10-16
申请人： Pamala Ranee CRESS
发明人： Pamala Ranee CRESS , Dianne Nadine DIAZ , Stephen Jay GERIG , Blake Morgan MULLINS , Stephen Michael SEYMOUR
摘要： A high-pressure float valve for positioning downhole within a well to control fluid flow includes a valve cage having a pair of side seal grooves each for receiving an exterior elastomeric seal therein and a plurality of cutouts provided on the top end of the valve cage. The valve cage can undergo nitride heat treatment and the internal components are made from 1018 hot rolled steel. The dimensions of a Model 5RF plunger-type valve and Model 5RG flapper-type float valve can be modified to meet the high pressure of a 10 ksi rating.
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公开(公告)号：US10718274B2
公开(公告)日：2020-07-21
申请号：US15758755
申请日：2016-08-29
发明人： Kazutami Aizawa
摘要： The present invention provides an exhaust gas pressure control valve which allows discharge of exhaust gases from entire cross-sectional area of the exhaust gas pipeline when the exhaust gas pressure control valve completely. An exhaust gas pressure control valve is mounted on a gas pipeline having a first cross-section where exhaust gas from engine communicates and disposed upstream or downstream of a muffler. The exhaust gas pressure control valve comprises: a housing having a first cross-sectional surface and a second cross-sectional surface larger than the first surface and connected to the gas pipelines for communicating the exhaust gas; the valve axis supported along the second cross-section not overlapping with the first cross-section when viewed from the flowing direction, the valve axis supported by the housing in a crossing direction to the flowing direction; and a valve element connected to the valve axis and adjusts flow of the exhaust gas communicating to the gas pipeline.
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公开(公告)号：US20200173568A1
公开(公告)日：2020-06-04
申请号：US16781372
申请日：2020-02-04
发明人： Christian WILHELM , Stefan EFFMANN
摘要： A respirator directional valve (10) includes a valve housing (12), a plurality of valve flaps (16-18), which can be moved by a gas stream or by a flowing medium and are arranged at the edge, and a number of support surfaces (20-22) as a valve seat. A number of support surfaces (20-22) corresponds to a number of valve flaps (16-18). Each valve flap (16-18) is adapted to a surface of a respective support surface (20-22). The support surfaces (20-22) are sloped in relation to a cross-sectional surface through the valve housing (12). The support surfaces (20-22) together form a tip pointing in the flow direction of the respirator directional valve (10). A method for manufacturing such a respirator directional valve (10) is provided including method features relating to the use of such a respirator directional valve (10).
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公开(公告)号：US20200166146A1
公开(公告)日：2020-05-28
申请号：US16573246
申请日：2019-09-17
摘要： A check valve comprises an annular housing defining a generally circular opening. A plurality of radially extending arms extend across the circular opening from the centre of the valve housing to respective nodes at the periphery of the valve housing. A plurality of cross arms extend between circumferentially adjacent nodes, thereby dividing the circular opening into a plurality of primary, generally triangular radially inner openings and a plurality of secondary, generally segment shaped radially outer openings. A plurality of primary, generally triangular flapper elements close the primary openings and a plurality of secondary, generally segment shaped flapper elements close the secondary openings. Respective mounting posts are arranged at a respective node and a respective hinge pin is mounted between respective circumferentially adjacent mounting posts.
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公开(公告)号：US10591072B1
公开(公告)日：2020-03-17
申请号：US16525957
申请日：2019-07-30
申请人： Marty L. Wysinger
发明人： Marty L. Wysinger
摘要： A sewer back-up prevention device for a recreational vehicle utilizes a T-shaped unit of tubing having a recreational vehicle sewer line hook-up on a first end, a sewer hose hook-up on a second end, and a trap cleanout access point disposed therebetween. Disposed within the T-shaped unit is a one-way flapper valve.
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公开(公告)号：US10578224B2
公开(公告)日：2020-03-03
申请号：US15622252
申请日：2017-06-14
发明人： Modest Reszewicz , Pawel Czarnecki
摘要： A valve housing for a check valve comprises a housing body for mounting a pair of flapper elements and a pair of valve openings extending through said valve body. The valve openings are separated by a web which extends from one side of the valve body to an opposed side of the valve body. The valve body and web define sealing surfaces around the valve openings on one face of the valve housing. The web comprises a slot extending into the web from a face thereof on said one face of said valve housing and extending along a length of the web.
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公开(公告)号：US10571036B2
公开(公告)日：2020-02-25
申请号：US15542295
申请日：2016-01-08
摘要： A link couples a support body and a valve body in a first arrangement where a first link-forming member is rotationally movably supported by the support body and in which a second link-forming member is rotationally movably supported by the valve body. The link includes: a link length that is a length of the first link-forming member, as measured between a rotation axis with respect to the support body and a rotation axis with respect to the second link-forming member; and a link length that is a length of the second link-forming member, as measured between a rotation axis with respect to the valve body and a rotation axis with respect to the first link-forming member. The link lengths differ from each other. The link is also configured to enable coupling between the support body and the valve body in a second arrangement inverted with respect to the first arrangement.
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公开(公告)号：US10557557B2
公开(公告)日：2020-02-11
申请号：US15788829
申请日：2017-10-20
摘要： An apparatus to allow or stop an air flow into an enclosed environment or piping system comprises (a) a housing, (b) a first valve seat, (c) a first sealing member, (d) a second valve seat, (e) a second sealing member, (f) at least one locking mechanism configured to limit a movement of the first sealing member and/or the second sealing member; wherein the first sealing member moves away from the first valve seat when the second pressure is greater than the first pressure in a predetermined pressure difference; wherein the second sealing member moves away from the first valve seat when the third pressure is greater than the second pressure in a predetermined pressure difference; wherein the first pressure communicates with a system pressure in the piping system; and wherein the third pressure communicates with an ambient air pressure.
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公开(公告)号：US10480666B2
公开(公告)日：2019-11-19
申请号：US15525694
申请日：2015-11-03
申请人： Nederman Holding AB
发明人： Piotr Balcarczyk
IPC分类号： F16K15/03 , F16K17/164 , B01D46/00
摘要： The present invention relates to a back pressure flap valve arrangement (1) comprising a housing (2) having an inlet opening (3) and an outlet opening (4). A flap (7) is pivotably hinged about a shaft (8) extending transverse a flow direction through the housing (2). A lever (10) is rigidly connectable to the shaft (8) and forming an angle thereto. The lever (10) has a stop face (11) arranged at a distance from the connection between the lever (10) and the shaft (8) such that the stop face (11) is arranged to move along an arc shaped path when the flap (7) pivots about said shaft (8). The arrangement (1) further comprises a stopper (12) having a slot (14) having an open end (16) and a longitudinal extension along a center line (CL) of the slot (14). The stopper has a first deformation zone (19) along a first side of the slot and a second deformation zone (20) along a second side of the slot, opposite the first side of the slot. The slot (14) is arranged to receive the stop face (11) and allow the stop face (11) to move in the slot (14) in the longitudinal extension thereof while engaging said first and second deformation zones (19, 20).
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公开(公告)号：US20190234646A1
公开(公告)日：2019-08-01
申请号：US16341234
申请日：2017-10-12
申请人： Dae Wan SEO
发明人： Dae Wan SEO
CPC分类号： F24F13/105 , F16K15/031 , F16K15/036 , F24F13/02 , F24F13/10 , F24F13/24
摘要： Provided is a duct damper comprising: a hollow housing provided inside the duct so as to enable ventilation; a blocking plate provided in the housing and opening and closing the hollow; a fastener detachably fixing the blocking plate to the housing; and shape maintaining members respectively provided on the sides of the blocking plate so as to respectively maintain half of the shape formed by the blocking plate. According to the present invention, even if both sides of the blocking plate are bent with a center bar as an axis, since the shape maintaining members half and half support the both sides of the blocking plate, respectively, so as to maintain the shape, vibrations are not generated at either side of the blocking plate, thereby preventing noise.
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