Patents Examined by P. Macade Nichols
  • Patent number: 11512794
    Abstract: A pressure relief valve includes a valve body, a valve seat, a bonnet, and a valve actuator. The valve body has an open top, a bottom, a back and a front with a cavity formed within. A cap with a first vent is removably attached to the open top. An inlet opening and a discharge opening are in fluid communication with the cavity is formed at the bottom and front of the valve body respectively. The valve seat is circumferentially disposed around the inlet opening within the cavity. A recessed area is formed on a surface on the distal end of the valve seat that is configured to receive a lip seal. The bonnet has a closed top end with a second vent. The valve actuator is coupled within the bonnet to a set-pressure enabling means that is not a mechanical spring.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: November 29, 2022
    Inventors: Tanmoy C. Chakravarty, Gopalakrishna Salvady, Anurag Sharma, Stanunathan Venkatachalam
  • Patent number: 11505937
    Abstract: Systems, methods, and articles of manufacture for automatic backflow identification, detection, remediation, and/or management. In some embodiments, a backflow management device may comprise a threaded and electronically-enabled plug installed in a non-pressurized pipe system cleanout, branch, or stub.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: November 22, 2022
    Assignee: 900 Ethan Allen Hwy LLC
    Inventors: Andrew Mulvaney, Joseph Mulvaney
  • Patent number: 11498075
    Abstract: A receptacle for minimizing evaporation of a fluid includes a single-piece body, a fluid-tight seal, a penetrable septum, and a lid. The body includes a chamber having an opening. The fluid-tight seal is affixed to a surface of the body that defines the first opening. The fluid-tight seal covers the opening and is frangible. The septum covers the opening and the fluid-tight seal. The septum includes at least one slit forming slats. The lid has an opening axially aligned with the opening and is coupled to the body such that at least a portion of the septum is disposed between the lid and the fluid-tight seal.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: November 15, 2022
    Inventor: Byron Knight
  • Patent number: 11486509
    Abstract: Provided are a check valve which can be easily mounted, a check valve structure which includes the check valve, and a hydraulic system which has the check valve structure. A check valve structure includes a partition wall for defining a first hole including a part of a hydraulic passage, and also includes a check valve inserted in the first hole, wherein the check valve structure is provided with: a base body having a base section which closes an open end of the first hole, and having a tubular section which has one end connected to the base section; and a sphere capable of making contact with the other end of the tubular section. The tubular section has formed therein a first through-hole communicating with a second hole connected to the first hole.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: November 1, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventor: Makoto Tsuchihashi
  • Patent number: 11486508
    Abstract: An actuator sub for generating hydraulic pressure having a sub housing which includes (i) an outer surface, (ii) a main flow passage extending though the sub housing, and (iii) a wall space formed between the main flow passage and the housing outer surface. At least a first hydraulic tube is position in the wall space and an equalization port is configured to transmit pressure in the main flow passage to the first hydraulic tube. A drive motor driving an bi-directional hydraulic motor, are positioned in the first hydraulic tube, with the hydraulic motor being configured to output fluid to a fluid outlet of the first hydraulic tube, and the hydraulic motor, when not under power, allowing the reverse flow of fluid through the hydraulic motor. The actuator sub includes the absence of a check valve along a path carrying fluid between the hydraulic motor and the outlet of the second hydraulic tube.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 1, 2022
    Assignee: Superior Energy Services, LLC
    Inventors: Barry Kent Holder, Todd Chretien, James Easey, Ranjit Singh, Andre Orban, Daniel Maurice Lerner
  • Patent number: 11486506
    Abstract: A safety valve for a housing, for releasing a housing opening of the housing if a defined burst pressure is reached or exceeded in the housing. It is provided here that in a base body of the safety valve including an elastomer, a receptacle groove that is continuous in the circumferential direction is formed for the formfitting accommodation of a retaining web of the housing. The disclosure furthermore relates to an energy accumulator for storing electric energy.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: November 1, 2022
    Assignee: AUDI AG
    Inventor: Andreas Deindl
  • Patent number: 11480254
    Abstract: A block forged swing check valve body includes a fully encapsulated seat ring. The swing check valve body includes a through hole and a chamber having a shelf portion defined by a D-shaped passageway. The shelf portion overlies an annular shoulder that encapsulates the valve seat. Methods for the manufacturing and use thereof are also provided.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 25, 2022
    Assignee: Crane ChemPharma & Energy Corp.
    Inventors: Sudhir K. Kulkarni, Sachin S. Chaudhari, Ranjit N. Bhalkar
  • Patent number: 11480257
    Abstract: A valve arrangement to allow a fluid flow in a first direction and block it in a second direction opposite the first direction. The valve arrangement includes: a fluid channel, a valve seat and a closing body arranged in the fluid channel. The closing body prevents fluid flow in the second direction when resting against the valve seat and allows fluid flow in the first direction when the closing body is lifted off the valve seat; a closing body holder in the fluid channel configured to restrict movement of the closing body in the first direction when the closing body is lifted off the valve seat. The closing body holder held on an inner circumferential wall of the fluid channel in a frictional fit and/or movable in the first direction in a position in which the closing body holder is held on an inner circumferential wall of the fluid channel.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: October 25, 2022
    Assignee: Schwäbische Hüttenwerke Automotive GmbH
    Inventors: Gerd Jäggle, Michael Ehringer, Georg Wiebel
  • Patent number: 11466789
    Abstract: A valve includes a valve housing, a piston, a support element, and a spring. The piston and the valve housing are arranged coaxially to each other on an imaginary valve axis. The piston is received in the valve housing in an axially movable manner against the spring force of the spring. The spring is supported on the support element and on the piston. The valve housing is provided with a first opening through which a fluid can flow and which can be closed by a piston base of the piston. The valve housing is provided with a second opening which can be at least partly closed by a piston casing of the piston and through which the fluid can flow. The piston casing extends outwards from the piston base in the axial direction of the support element and surrounds the valve axis.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: October 11, 2022
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Lukas Kuhn, Horst Hartmann, Georg Draser
  • Patent number: 11460120
    Abstract: A sealing assembly for controlling a flow of fluid through a fluid line has a housing having a first end opposite a second end with a hollow interior extending therebetween and an elastically resilient plug disposed within the hollow interior of the housing. The plug has a body engagable with a seat within the housing and a tension member having a first end connected to the body and a second end connected to the housing. The tension member is pre-loaded in tension to urge the body of the plug against the seat to seal the hollow interior of the housing. The body is movable away from the seat when the plug is acted upon by a fluid pressure greater than a pre-load force of the tension member.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: October 4, 2022
    Inventor: Michael L. Hodak
  • Patent number: 11428327
    Abstract: There is provided a check valve capable of effectively suppressing the generation of chattering. The check valve includes: a housing including an inlet channel, a valve chest, and an outlet channel; a seat member provided around the inlet channel, the seat member including a seat portion; a valve element pressed against the seat portion to close the inlet channel; a biasing member configured to push the valve element toward a valve seat; a guide portion provided at the housing and configured to guide the valve element when the valve element moves in an axial direction; and a damper chamber communicating with the valve chest through a space between the valve element and the guide portion, the damper chamber being configured to attenuate axial moving force of the valve element. The biasing member is arranged in the valve chest.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: August 30, 2022
    Inventors: Yuki Kato, Noritaka Nakamura, Kodai Kato, Yukinobu Sakata, Hiromitsu Kiyose
  • Patent number: 11428337
    Abstract: The invention relates to a non-return valve, in particular for a refrigeration circuit or thermal circuit, which is insertable into a connection point (76) of a connection device (71), which comprises a supply opening (72) for supplying a medium and an outlet opening (74) for discharging the medium, comprising a multi-part housing (12, 14), which comprises a valve housing (14) and a main housing (12), which is interconnectable by means of connection elements (41, 42) via an interface (16), comprising a regulating space (24) formed between the main housing (12) and the valve housing (14), in which space a valve-closing member (25) is provided which abuts a valve seat (23) of the valve housing (14) in a closed position (54), and closes an opening (22) in the valve housing (14) and is movable into an operating position (55) counter to an actuating force of a return element (33) and releases the valve opening (22), wherein the valve housing (14) and the valve-closing member (25), which is arranged so as to be mov
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: August 30, 2022
    Assignee: OTTO EGELHOF GmbH & Co. KG
    Inventors: Andreas Auweder, Eike Willers, Betina Jahnke, Bernhard Wagner
  • Patent number: 11421794
    Abstract: A method of manufacturing a check valve may include forming an upper housing as cylindrical body with (i) an internal surface including an upstream internal surface and a downstream internal surface having a projection and (ii) an external surface, forming a T-shaped filter member and mounting the T-shaped filter member in the internal surface of the upper housing. The method may further include forming a lower housing with a support portion at a central portion thereof, mounting a flexible valve member on the support portion, and coupling the upper housing with T-shaped filter member mounted therein onto the lower housing with flexible valve member mounted therein such that the T-shaped filter member is disposed upstream of the flexible valve member.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: August 23, 2022
    Assignee: CAREFUSION 303, INC.
    Inventors: Raymond P. Feith, Eugene Mason
  • Patent number: 11421793
    Abstract: A check valve includes an upper housing having an inlet of the check valve, a lower housing axially coupled to the upper housing and having an outlet of the check valve, a valve portion cooperatively formed by the upper and lower housings, a passageway extending between the inlet and outlet, a first filter included in the upper housing to limit passage of undesirable matter in fluid flowing through the check valve, a second filter included in the lower housing to limit passage of undesirable matter in fluid flowing through the check valve, each of the first filter and the second filter including a plurality of vertical structures disposed in the valve portion and extending axially and radially in the valve portion, and a valve member positioned in the valve portion to selectively permit fluid to flow through the check valve.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: August 23, 2022
    Assignee: CAREFUSION 303, INC
    Inventors: Raymond Feith, Siddarth K. Shevgoor, Eugene Mason, Mark Kaplan
  • Patent number: 11415237
    Abstract: A drill string safety valve device (1) has a body (2) with a through-going flow bore (25) and connectors (3, 4) at respective ends (19, 18) for connection to tubulars, such as pipe joints. A valve member (7; 29) is movably arranged in said flow bore (25) and configured for being set in one of two states: a first state of the valve member allows fluid to flow in both directions though the flow bore, and a second state of the valve member allows fluid flow through the flow bore in only one direction. The valve member may be a rotatable ball valve (7) with a through-going flow bore (21).
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: August 16, 2022
    Assignee: Moonshine Solutions AS
    Inventors: Jan Georg Tveiterås, Helge Hope, Alf Breivik
  • Patent number: 11415092
    Abstract: To provide a fuel tank check valve making it easy to assemble a cap to a valve element housing. This fuel tank check valve has a body tube provided with a valve element housing, a valve element, a cap, and a spring, wherein the valve element housing has a base end side frame, a tip end side frame to which the cap is mounted, and a first coupling frame connecting the both frames, the tip end side frame is provided with a retraction portion having a shape in which a circumferential part is retracted from the tip end surface thereof to the base end side frame side, the cap is formed with a notch whose circumferential part is notched, and the cap is assembled to the valve element housing so that the notch is positioned in the retraction portion.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 16, 2022
    Assignee: PIOLAX, INC.
    Inventors: Takahiro Sakai, Yusuke Ochiai
  • Patent number: 11415234
    Abstract: A valve may include a valve body forming a central passage extending from a first side of the valve body to a second side of the valve body. A valve pin may be located within the central passage, where the valve pin includes a sealing head that selectively contacts a valve seat of the valve body to control flow of a fluid through the central passage. A spring may have a first end that is fixed relative to the valve pin. A spring seat may be fixed relative to a second end of the spring, where the spring is fixed relative to a calibration plunger, and where the calibration plunger is secured to a threadless calibration wall of the valve body via an interference fit.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 16, 2022
    Assignee: Schrader-Bridgeport International, Inc.
    Inventor: Major H. Gilbert
  • Patent number: 11415236
    Abstract: A gas pressure regulating device is provided which comprises an upper housing and a lower housing, a pressure regulation cavity is disposed between the upper housing and the lower housing, a diaphragm assembly is disposed in the pressure regulation cavity, a gas inlet and a valve port for communicating the gas inlet with the pressure regulation cavity are disposed at one end of the lower housing. The gas pressure regulating device provided in the present invention has a simpler structure and fewer parts and is capable of effectively lowering the risks of dangerous accidents such as product leakage resulting from part failure, thus effectively ensuring stable pressure regulation performance.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: August 16, 2022
    Inventors: Feng Zhang, Yunnan Wei, Yanhua Wang, Hongbin Ren
  • Patent number: 11408443
    Abstract: A servovalve includes a supply port and a control port; a moveable valve spool arranged to regulate flow of fluid from the supply port to the control port in response to a control signal and a drive assembly configured to axially move the valve spool relative to the fluid transfer assembly in response to the control signal to regulate the fluid flow; wherein the drive assembly comprises a first fluid channel providing a flow path for fluid from the supply port to a first end of the spool and provided with a first flow control orifice. The assembly also includes a second fluid channel providing a rotating element provided with a cam profile located between the first flow control orifice and the second flow control orifice. The assembly also includes drive means arranged to rotate the rotating element.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 9, 2022
    Inventor: Zbigniew Jaśkiewicz
  • Patent number: 11401841
    Abstract: An annular groove has: a side peripheral surface that is shaped in a ring form and is formed such that the side peripheral surface inwardly extends from a bottom surface of the annular groove in a radial direction of a tubular member and is joined to an inner peripheral wall of the tubular member; and a specific shape surface that is formed along at least a part of the side peripheral surface between a bottom surface side end part and an inner peripheral wall side end part of the side peripheral surface such that a diameter of the specific shape surface is progressively reduced in an axial direction of the tubular member from one axial side, at which the bottom surface is placed, toward another axial side, at which the inner peripheral wall is placed.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: August 2, 2022
    Inventor: Tetsuro Mitsutani