Ball Valves Patents (Class 137/539)
  • Patent number: 10883593
    Abstract: A driving device in one aspect of the present disclosure includes an electric motor, a worm gear, a gear easing that stores the worm gear, a first fitting portion provided in the electric motor, a second fitting portion provided in the gear casing and fitting to the first fitting portion, and a restriction member that includes a pressure contact portion and a contact portion and restricts displacement of the worm gear along a rotation center axis thereof. The pressure contact portion is in pressure contact with one fitting portion out of the first fitting portion and the second fitting portion, and the contact portion is in contact with the other fitting portion.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: January 5, 2021
    Inventors: Wataru Sakaguchi, Toshiharu Kiriyama, Shoma Fukaya
  • Patent number: 10870345
    Abstract: A check valve for use with a hydraulic drive apparatus includes a check ball disposed in a cage portion for engaging a valve seat to close the valve. The cage portion has a plurality of flexible ribs composed of a flexible material which permits the check ball to be inserted into to ball retaining area during assembly and to be retained in the ball area after assembly. A filter housing connected to a mounting member has a pair of openings formed in a first surface, and a pair of deformable lips surrounding each opening. A filter screen permits hydraulic fluid to enter a filter housing from a sump. A pair of check valves are disposed in a pair of check valve ports. An external surface of each check valve is engaged to one of the deformable lips to sealingly engage the check valve to the filter housing.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: December 22, 2020
    Assignee: Hydro-Gear Limited Partnership
    Inventor: Ryan S. Buescher
  • Patent number: 10808667
    Abstract: An outlet valve includes an outlet valve housing with an outlet valve bore including an outlet valve seating surface. The outlet valve also includes an outlet valve member which moves within the outlet valve bore second portion between a closed position and an open position. A surface of the outlet valve bore guides the outlet valve member during movement between the closed position and the open position. The surface of the outlet valve bore and the outlet valve seating surface are provided on a continuous piece of material of the outlet valve housing. An outlet valve spring biases the outlet valve member toward the closed position and a retainer is fixed to the outlet valve housing which grounds the outlet valve spring to the outlet valve housing.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 20, 2020
    Inventor: Robert B. Perry
  • Patent number: 10746148
    Abstract: Various embodiments include a check valve for a high-pressure component in a fuel injection system comprising: a valve housing with a valve hole having an inner diameter; a valve seat and a sealing element arranged in the valve hole; and a coil spring pushing the sealing element toward the valve seat along a longitudinal axis of the valve hole. The coil spring includes a plurality of coil turns each having an outer diameter. In a non-assembled state of the check valve, the outer diameter of at least one of the coil turns is greater than the inner diameter of at least a portion of the valve hole, so that in an assembled state of the check valve, the coil spring is secured in a force-fitting manner in the valve hole.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: August 18, 2020
    Inventors: Markus Zankl, Helmut Kamm, Josef Tremmel-Burian
  • Patent number: 10415749
    Abstract: A coupler connected a hose of a grease gun includes a body having a path defined therethrough. A check valve unit and a sealing unit are located in the body. The check valve includes a spring which biases the sealing unit. A groove is defined in an outer surface of the body. A socket is mounted to the body and multiple pawls are received in the socket. The pawls each have a first end engaged with the groove, and a second end of each pawl is controlled to be connected to a fitting member. The socket has a flange extending from the inner periphery. The second ends of the pawls removably contact the flange. A trigger is pivotably connected to the body and drives the socket which is moved by pivoting the trigger so as to control the pawls to engaged with or release the fitting member.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: September 17, 2019
    Assignee: King Cho Machinery Industrial Co., Ltd.
    Inventor: Fu Tien Hung
  • Patent number: 10378530
    Abstract: The present invention concerns a diaphragm pump comprising a delivery chamber separated from a hydraulic chamber by way of a diaphragm, wherein the delivery chamber is respectively connected to a suction connection and a pressure connection and the hydraulic chamber which can be filled with a working fluid can be acted upon with a pulsating working fluid pressure and the diaphragm can be reciprocated between a pressure position in which the volume of the delivery chamber is smaller and a suction position in which the volume of the delivery chamber is larger.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: August 13, 2019
    Assignee: ProMinent GmbH
    Inventors: Christian Arnold, Martin Reinhard, Roland Elgetz
  • Patent number: 10369586
    Abstract: An oil jet device for supplying pressure oil which is supplied from a pressure oil supply source, includes a valve body and a supporting portion. The valve body is molded by cold-forging a metal material and accommodates a valve portion for controlling the supply of the pressure oil from the pressure oil supply source. The supporting portion is molded by cold-forging a metal material, supports the valve body, and has a first principal surface having a flat shape and configured to abut on an attachment target object.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: August 6, 2019
    Inventors: Akira Ogino, Shoji Mori
  • Patent number: 10253873
    Abstract: A stop valve assembly is provided for the locking and unlocking of at least one hydraulic chamber of a shift element that is applied with operating pressure and is coaxially arranged at a shaft in a transmission housing of an automatic transmission of a motor vehicle. At least one first stop valve for lowering the operating pressure of the shift element and at least one second stop valve for raising the operating pressure of the shift element are provided.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: April 9, 2019
    Inventors: Josef Haupt, Martin Brehmer, Stefan Brom
  • Patent number: 10071276
    Abstract: A hydraulic cylinder assembly for operating a weight lifting bench and other equipment. The hydraulic cylinder assembly comprises a hydraulic cylinder containing a hydraulic fluid, an accumulator containing a pressurized compressible fluid, and a flow control valve assembly interposed in a flow path therebetween. The flow control valve includes an axially reciprocating piston defining a flow control orifice and an axially movable plunger received in the orifice. Movement of the plunger operates to engage and open a ball check valve which in turn opens the flow path allowing hydraulic fluid to flow from the hydraulic cylinder to the accumulator. The working end may be stepped and positionable between first and second axial positions relative to the orifice to define first and second flow areas via movement of the plunger. Reciprocating movement of the piston opens and closes the flow path.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 11, 2018
    Inventors: David Vorozilchak, James J. Lennox, Kenneth Brown
  • Patent number: 10030783
    Abstract: In order to reduce a pressure loss in a check valve and simplify a manufacturing process, a check valve (10) configured to be disposed in piping of fluid is provided, which includes a valve housing (31) including a valve element (52) and a valve seat (54) therein, a casing (20) that is configured to place the valve housing therein, in which a casing flow path (60) is provided between the casing and the valve housing to make a flow of the fluid in an axial direction of the valve housing. In the valve housing, a communicating hole (38) and sealing portion (34) are formed. The communicating hole that is formed through the valve housing in a thickness direction thereof introduces the fluid, which flows through between the valve element and the valve seat at the open position of the check valve, into the casing flow path.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: July 24, 2018
    Assignees: Toyota Jidosha Kabushiki Kaisha, Nitto Kohki Co., Ltd.
    Inventors: Hirofumi Onishi, Masaaki Kondo, Akira Yamashita, Takuya Nishio
  • Patent number: 9988020
    Abstract: A washer nozzle for a screen wash system of a motor vehicle has a pre-assembled structural unit of a jet insert and a check valve. This structural unit is pressed into a shaft of a housing. This makes the washer nozzle particularly easy to install.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 5, 2018
    Assignee: Continental Automotive GmbH
    Inventors: Heiko Weitzel, Dirk Ringler, Michael Droessler
  • Patent number: 9896993
    Abstract: A device actuates a waste gate flap of an exhaust gas turbocharger of an internal combustion engine. The device has an actuator which has an actuator rod, a lever which is connected to the actuator rod and a spindle which is connected to the lever and to which the waste gate flap is secured. A resiliently mounted ball head rod is provided between the actuator rod and the lever.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: February 20, 2018
    Assignee: Continental Automotive GmbH
    Inventors: Uemit Dilalan, Bruno Ferling
  • Patent number: 9833356
    Abstract: Dispenser for dispensing pharmaceutical liquid having a housing, a liquid reservoir arranged within the housing, an exit opening through which liquid is discharged into a surrounding atmosphere, an outlet channel connecting the liquid reservoir to the exit opening and having an outlet valve, openable in a pressure-dependent manner or actuatable manually, arranged in the outlet channel. With the valve closed, the outlet channel is subdivided into a first portion upstream of the outlet valve and a second portion downstream of the outlet valve. The housing is of antibacterial design in the region of surfaces which are intended to come into contact with the liquid, wherein it is exclusively surfaces in the region of the second portion and/or of an outer surface of the housing which have this antibacterial design.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: December 5, 2017
    Inventor: Matthias Wochele
  • Patent number: 9828959
    Abstract: A high-pressure fuel pump includes an outlet valve, a valve ball, a valve spring that acts on the valve ball in a closing direction, and a stop body for the valve ball. The stop body has a stop section that limits the opening stroke of the valve ball, and the valve spring is supported by the stop body. The stop body has a cut-out section that at least partially accommodates the valve spring and that has a radial inner periphery which forms a guide for the valve spring.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: November 28, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Gerd Teike, Michael Kleindl, Soeren Stritzel
  • Patent number: 9802585
    Abstract: A linkage assembly couples a plunger of a brake valve to a manually operated brake input member. The linkage assembly includes a pushrod and a resilient member. The pushrod has an end member which is engagable with the plunger. The resilient member is attached to the pushrod end member. The resilient member has an end which is engagable with the plunger when the pushrod end member is spaced apart from the plunger. The resilient member deforms to allow the pushrod end member to directly engage the plunger when the pushrod end member is moved towards the plunger. One of the end and resilient members surrounds a portion of the other of the end and resilient members. The resilient member may be a sleeve which surrounds an end portion of the pushrod. Or, the resilient member may be surrounded by a hollow end portion of the pushrod.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: October 31, 2017
    Assignee: Deere & Company
    Inventors: Michael D. Kollath, Christopher A. Bering, Scott A. Hudson, Scott A. Tebbe
  • Patent number: 9750284
    Abstract: A personal vaporizer is configured to be usable both for non-liquid vaporizing media and for liquid vaporizing media. In some embodiments an electrically conductive check valve blocks vaporizing media from leaking out of air intake apertures during periods of nonuse, and delivers electric power to a heating element during use. In some embodiments, no wick structures extend into a fluid chamber, but a wick extends from a wick holder downstream of the fluid chamber to a vaporizing chamber.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: September 5, 2017
    Inventor: J. Christian Rado
  • Patent number: 9752473
    Abstract: An oil change drain valve includes a hollow valve body and a hollow body valve actuator arranged coaxial with the valve body. The valve body is adapted for insertion into an oil pan and houses a check ball and a spring arranged to urge the check ball into a closed position. The valve actuator is adapted for temporary insertion into a lower end of the valve body and includes a bayonet at its upper end. As the valve actuator moves toward the check ball, the bayonet contacts the ball and urges it into an open position. Oil flows through the valve body and actuator unimpeded by any mechanical or moving parts.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: September 5, 2017
    Inventors: Michael R. Burns, Jerry L. Burns
  • Patent number: 9732640
    Abstract: Disclosed is a control and monitoring method via H bridge of an electromagnet including a solenoid through which a current can be passed in one direction and in the opposite direction. The solenoid delivers a signal corresponding to a mechanical locking movement. Once a current flows in the solenoid, the bridge switches automatically into high impedance with all transistors thereof blocked. A measurement is then taken at the terminals of the solenoid to verify the locked state of the electromechanical system.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: August 15, 2017
    Inventors: Angelo Pasqualetto, Jean-Marie Quintin
  • Patent number: 9599175
    Abstract: A caliper comprises a hydraulic linking channel provided in a bridge section linking hydraulic cylinders, on an inner caliper section side, and hydraulic cylinders, on an outer caliper section side, to a cylinder-side hydraulic channel disposed on the back end of each respectively. A connecting channel forming section, which corresponds to each cylinder-side hydraulic channel and the hydraulic linking channel is provided, in advance, in a core used during casting of the inner caliper section, the outer caliper section, and the bridge section, and is formed by setting in a situation to be embedded at the same time as each caliper section and the bridge section are being integrally cast.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: March 21, 2017
    Inventors: Takahiro Kawamata, Tetsuzo Nishimura
  • Patent number: 9587750
    Abstract: A diaphragm-type control valve having a valve body holding a diaphragm and a depression member is provided preferably for use in the separation of and fluid control between a fluid source and a pressurized gas volume. An inner surface of the valve body defines a chamber having an inlet and an outlet in communication with the chamber, and an elongated seat member. The depression member biases the diaphragm to a seated position within the valve.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 7, 2017
    Assignee: Tyco Fire Products LP
    Inventors: Yoram Ringer, Su Yang
  • Patent number: 9457158
    Abstract: An intravenous pump system includes an intravenous pump having an air bubble detector, a separate air trap module and a patient line. The air trap module is connectable to a set interface upon which the pump can operate. The air trap module includes an air chamber capable of receiving fluids and air, a plurality of valves controlling the flow of the fluids and air, and an air vent. The patient line is connectable to the air trap module and to a patient. The air trap module includes an actuator to control the state of the valves to enable, at least during a venting mode, the pump to push air out of the air chamber via the vent without disconnecting the patient from the patient line.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: October 4, 2016
    Assignee: Q-CORE MEDICAL LTD.
    Inventors: Shachar Rotem, Boaz Eitan, Shaul Eitan, Omer Havron
  • Patent number: 9394088
    Abstract: A tap for a flexible package having a dosing dispenser. The tap can be coupled to a spout of a flexible bag (such as the type that is provided for bag in box packaging). The tap permits the application of metered doses from the flexible bag. As the flexible bag is emptied, the flexible bag collapses, as the dosing dispenser generally prohibits the passage of air back into the flexible bag when the flowable material is emptied therefrom.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: July 19, 2016
    Assignee: Scholle IPN Corporation
    Inventors: David Bellmore, Chris Murray, Eric Wehrli
  • Patent number: 9255590
    Abstract: A ventilation device for a hydraulic cylinder providing a housing having a fluid passageway with an inlet and an outlet, and a closure member disposed in said passageway displaceable in obstructing relation with such inlet upon application of a first fluid force in such inlet, obstructing relation with such outlet upon application of a second fluid force on such inlet and in nonobstructing relation with either of such inlet and outlet upon application of a third fluid force between such first and second fluid forces.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: February 9, 2016
    Assignee: AUDI AG
    Inventors: Dietmar Schuller, Hans-Peter Fleischmann, Mathias Jakob-Bodenhagen
  • Patent number: 9121334
    Abstract: A body of an oil jet including: an oil supply port which opens into an oil passage in a cylinder block of an internal combustion engine; a cylinder one end of which is communicated with the oil supply port and the other end of which is closed; and an oil injection port which opens on a side surface of the cylinder. A piston valve is accommodated in the cylinder. The piston valve forms in the cylinder a differential pressure room which is a closed compartment. Moreover, an orifice which makes the differential pressure room being communicated with a side of the oil supply port is formed in the piston valve. The piston valve is biased toward a position at which the oil injection port is closed by a spring. Furthermore, a leak hole which allows oil to be leaked outside of the body from the differential pressure room is formed in the body.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: September 1, 2015
    Inventors: Akihiro Honda, Motoichi Murakami, Masahiro Kawahara, Yoshitaka Yamaguchi
  • Patent number: 9074516
    Abstract: A system for cooling internal combustion engine pistons comprising an oil pump driven by the engine, jets projecting oil on the pistons, and a control device (2) interposed between the oil pump and the jets, where the control device comprises a valve (14) positioned between an oil inlet pipe (8) connected to the pressurised oil pump and a jet supply pipe (10), where said valve allows the oil to flow out from the pump to the jets when the oil pressure is at least equal to a threshold pressure, and where the device also comprises a solenoid valve (22) capable of causing the valve (14) to close by permitting the pressurised oil to be brought into contact with the closure member (16), in a direction of closure of the valve (14).
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: July 7, 2015
    Assignee: BONTAZ CENTRE R&D
    Inventors: Stephane Perotto, Christophe Laguetre, Marlene Mangin
  • Patent number: 9010364
    Abstract: A valve for regulating the flow of fluid through an access port in a fluid chamber includes a body having a first end and a second end, the second end being located in the access port and the first end protruding outside of the access port. An axial bore extends from the first end to the second end, an injection fitting is formed at the first end of the body in fluid communication with the axial bore, and the second end of the body includes a selective sealing interface. The body forms a sealing interface with a threaded inner wall surface of the access port. A one-way valve assembly is positioned within the axial bore, and is arranged to permit a flow of fluid therethrough in a downstream direction and prevent the flow of fluid therethrough in an upstream direction. A bypass passageway extends from the selective sealing interface separate from the axial bore. A connecting passageway connects the bypass passageway with the axial bore upstream of the one-way valve assembly.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: April 21, 2015
    Assignee: Clark Equipment Company
    Inventors: Thomas J. Tokach, William C. Shelbourn, Scott N. Schuh
  • Publication number: 20150101688
    Abstract: A device for limiting the feed of fuel out of a high-pressure supply via a controllable injector into the combustion space of an internal combustion engine comprises a housing including a pressure supply-side housing inlet, an injector-side housing outlet, and at least one duct having a throttle, and a closing member longitudinally displaceable in a chamber between an initial position and an end position, spring-prestressed opposite to a flow direction, and configured to control a flow connection between the housing inlet and the housing outlet. The housing inlet is connected to the housing outlet via the at least one duct, and the at least one duct runs radially outside the chamber.
    Type: Application
    Filed: March 28, 2013
    Publication date: April 16, 2015
    Applicant: Robert Bosch GmbH
    Inventor: Helmut Giessauf
  • Patent number: 8955544
    Abstract: An improved grease coupler 3 allows for positive, coupling and uncoupling from a grease nipple 4 via a manually operated trigger mechanism 30. The coupler includes a replaceable seal 13 and has an elongate body 10 with a grease passage 11 through the length of the body. A floating barrel plunger 42 acts as a check valve to prevent grease leaking from the discharge end of the elongate body 10 upon disconnection.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: February 17, 2015
    Assignee: Gurtech (Pty) Ltd.
    Inventor: Richard Stillard Gurney
  • Patent number: 8925574
    Abstract: A vent system for an axle of a heavy-duty vehicle includes a check valve and an exhaust tube that is connected to the check valve. The check valve includes a first end that is mounted on the axle, a second end, and a body that is disposed between the first and second ends and is in selective fluid communication with the axle interior. The exhaust tube includes a first end that is mounted on the second end of the check valve, and a second end that is open to atmosphere and is in fluid communication with the check valve body. Using any one of a number of types of configurations for the valve body, the vent system selectively exhausts air from the axle interior to atmosphere to relieve buildups of pressure in the axle, while protecting the integrity of the check valve and preventing contaminants from entering the axle.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: January 6, 2015
    Assignee: Hendrickson USA, L.L.C.
    Inventors: Matt J. Wilson, Jay D. White, Jesse W. Cervantez, Stephen H. Burke
  • Publication number: 20140345718
    Abstract: A device for removing oils, fuels and other fluids from reservoirs is disclosed that works in conjunction with engine-powered devices via a vacuum-actuated valve containing a multi-tiered U-groove. The U-groove allows a disconnection of the valve bolt shaft from the threaded end that fits inside the reservoir, trapping and holding the fluid in the reservoir.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Applicant: CLEAN PLANET MFG. & LABS, INC.
    Inventor: James C. Williams, JR.
  • Patent number: 8833389
    Abstract: A check ball valve cartridge assembly is provided for regulating fluid flow through a fluid pressure line in an automotive transmission. The assembly includes a cartridge having a side wall forming a hollow interior cavity in the cartridge and a lip extending from the side wall toward a central axis of the cartridge. The assembly also has a check ball, which is disposed at least partially within the interior cavity of the cartridge. The lip of the cartridge is configured to prevent the check ball from exiting the interior cavity of the cartridge. A biasing member is disposed at least partially within the interior cavity of the cartridge and contacts the check ball. The assembly may include a pair of orientation features extending from the side wall of the cartridge for aligning the cartridge for installation within the automotive transmission.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: September 16, 2014
    Assignee: GM Global Technology Operations, LLC
    Inventors: Robert Alan Dziurda, Frederic Zenczenko
  • Publication number: 20140109544
    Abstract: In one featured embodiment, a closure sleeve for a valve comprises a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end. The sleeve body has an internal cavity that is enclosed at the downstream end and is open at the upstream end. The internal cavity is defined in part by a piston contact surface that is defined by an inner diameter. The piston contact surface is configured to slide against a piston to be received within the internal cavity, and a ratio of the inner diameter to the overall length is between 1.0 and 1.5.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Aaron Rickis, Francis P. Marocchini
  • Publication number: 20140109983
    Abstract: In one featured embodiment, a spring assembly for a valve comprises a spring, a spring seat including a cup-shaped portion for seating one end of the spring, and a ball received within a recess formed within the cup-shaped portion of the spring seat. The ball is defined by a ball diameter. A disc prevents the ball from contacting a piston. The disc is defined by an outer diameter and includes a center opening defined by an inner diameter. A ratio of the inner diameter to the ball diameter is between 0.60 and 0.65.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
  • Patent number: 8696330
    Abstract: The invention relates to a reciprocating piston pump for delivering a liquid. The pump includes a solenoid with an actuator and an outlet port. A check valve with a seat body is assigned to the outlet port for keeping a return flow of the liquid out of the reciprocating piston pump. The seat body bears an impact damping face at a front face facing away from a valve seat of the check valve, and the valve seat of the check valve and the impact damping face are made from the same elastomer material.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: April 15, 2014
    Assignee: Thomas Magnete GmbH
    Inventors: Olaf Ohligschlaeger, Axel Mueller, Michael Mueller, Andreas Monzen, Stefan Quast, Bernd Koehler, Michael Feckler
  • Patent number: 8689825
    Abstract: A flow control valve for use in oxygen systems. The flow control valve has a body within an inlet and an outlet. A seat is located within the body and a ball retainer is located within the body. The ball retainer is able to capture a ball. The flow control valve also has biasing means connected to the ball retainer. Furthermore, the biasing means is movable between a flow and a non-flow position. The ball retainer is in a closed position when the ball, captured by the ball retainer, engages the seat to prevent gas flowing through the seat.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: April 8, 2014
    Assignee: Oxycheck Pty Ltd
    Inventors: Peter James Nelson, John Robert De Wit, Theodore Aaron Steinberg
  • Patent number: 8684029
    Abstract: Disclosed is a check valve of a hydraulic brake system. The check valve includes a valve housing which includes a tapered front end having a smaller diameter than a middle end, the cylindrical middle end extending from the front end by a predetermined length to allow the ball and spring to be accommodated within the middle end, a rear end stepped from the middle end to have a greater diameter than the middle end, and a flange circumferentially bent from the rear end to have a greater diameter than the rear end, and a valve seat having an outer diameter equal to an inner diameter of the rear end so as to be press-fitted into the rear end of the valve housing. The check valve having a simplified configuration achieves size and weight reduction and is manufactured at low cost and high processing efficiency using pressing.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: April 1, 2014
    Assignee: Mando Corporation
    Inventor: Chung Jae Lee
  • Publication number: 20140007955
    Abstract: A check ball valve cartridge assembly is provided for regulating fluid flow through a fluid pressure line in an automotive transmission. The assembly includes a cartridge having a side wall forming a hollow interior cavity in the cartridge and a lip extending from the side wall toward a central axis of the cartridge. The assembly also has a check ball, which is disposed at least partially within the interior cavity of the cartridge. The lip of the cartridge is configured to prevent the check ball from exiting the interior cavity of the cartridge. A biasing member is disposed at least partially within the interior cavity of the cartridge and contacts the check ball. The assembly may include a pair of orientation features extending from the side wall of the cartridge for aligning the cartridge for installation within the automotive transmission.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 9, 2014
    Inventors: Robert Alan Dziurda, Frederic Zenczenko
  • Patent number: 8578964
    Abstract: The invention relates to a device for bleeding a hydraulic system. The bleeding device comprises a venting passage which can be closed by means of a valve arrangement. In order to simplify such a bleeding device regarding the operation thereof while preventing air from being delivered in an uncontrolled manner during the bleeding process, the valve arrangement is provided with a valve member (S) which can be lifted from a valve seat (8) of the valve arrangement counter to the force of a spring element (7) in an open position of the bleeding device while being fixed to the valve seat (8) in a closed position of the bleeding device. The invention further relates to a venting screw which encompasses such a valve arrangement according to the principle of a check valve and is to be mounted in a caliper (18).
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: November 12, 2013
    Inventors: Martin Maszull, Peter Rösler, Thomas Wittrock
  • Patent number: 8523541
    Abstract: The invention relates to a one-piece plastic element having an inlet valve cover and an inlet valve seat element for an inlet valve of a piston pump of a hydraulic brake system of a motor vehicle. The inlet valve is designed as a check valve, and the inlet valve cover and the inlet valve seat element are connected to each other by a designed fracture point. The invention further relates to a piston pump having an inlet valve cover and inlet valve seat element made of a one-piece plastic element. The invention further relates to a method for assembling the inlet valve designed as a check valve.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: September 3, 2013
    Assignee: Robert Bosch GmbH
    Inventor: Harald Hermann
  • Patent number: 8511339
    Abstract: A fuel pressure controller used in a fuel supply device of an automobile has an open-close ball insertion groove formed to be protruding from a side of a valve pressing member. The valve pressing member has a predetermined open area in a circumferential direction and in a radial direction to prevent separation of an open-close ball even at the time of an operation, such that pressure may be accurately controlled and noise may be reduced.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: August 20, 2013
    Assignee: Coavis
    Inventors: KyungHwan Kim, Se-Dong Baek, DongHeon Mo, Jeongsik Kim
  • Patent number: 8511347
    Abstract: A system and method for installing and removing a flow restrictor assembly in a shower, while prevents tampering with the flow restriction system thus installed. Tampering is prevented by concealing the flow restrictor assembly behind a shower wall, attached directly to a water supply line. The system further prevents tampering by concealing the tool-hole necessary for its removal behind a flow restrictor disk, so that there are no visible means of removing the flow restrictor assembly. The flow restrictor assembly threads onto a showerhead arm and the flow restrictor assembly with the attached showerhead arm threads directly into the water line. When the showerhead arm is unthreaded, the flow restrictor assembly remains connected to the water line by an external screw thread. The flow restrictor must be removed to reveal the tool-hole which may only then be engaged by a tool for removal.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: August 20, 2013
    Assignee: D.S. Magic Tech LLC
    Inventor: David Schwartz
  • Patent number: 8506270
    Abstract: A variable displacement vane pump including a relief valve which includes a valve bore, a spherical valve element in the valve bore, a valve seat fixed onto one axial side of the valve bore and having a through hole and an annular seat surface on which the valve element is seated when the relief valve is in a closed position, a coil spring disposed on the other axial side of the valve bore, and a valve element retainer disposed between the valve element and the coil spring, wherein the seat surface is configured such that when the relief valve is in the closed position, a center of the valve element is located offset from a central axis of one winding seating portion of the coil spring which is disposed on an opposite side of the seat surface, in a radial direction of the valve bore.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: August 13, 2013
    Assignees: Hitachi Automotive Systems, Ltd., Hitachi Automotive Systems Steering, Ltd.
    Inventor: Jun Soeda
  • Publication number: 20130199636
    Abstract: Disclosed herein is a check valve of a brake system to enable easy processing and assembly through a simplified structure. The check valve for brake systems includes a valve sheet housing press-fitted to a step of a hydraulic block provided with an oil passage, the valve sheet housing including an upper part having an opening and a lower part having an open/close hole to form an oil channel in an inner part, a ball provided in the valve sheet housing to open or close the oil channel, and a spring to elastically support the ball, wherein the valve sheet housing is provided in the upper part thereof with a plurality of fixing protrusions that protrude in an inside diameter direction along a circumference of the opening to support the spring.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 8, 2013
    Inventor: Mando Corporation
  • Patent number: 8499787
    Abstract: A pressure control valve has a non-uniformly tapered valve bore that has an increasing diameter as it extends downstream. An interface angle, defined in part between a valve ball and the valve bore in the area of the smallest gap between them, increases as the valve ball is increasingly displaced away from a valve seat of the valve bore.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: August 6, 2013
    Assignee: TI Group Automotive Systems, L.L.C.
    Inventor: Edward J. Talaski
  • Patent number: 8403428
    Abstract: A check valve having a spherical valve body received in a valve chamber, a valve seat for blocking the flow of fluid from the valve chamber toward an inflow port when having the spherical valve body seated thereon, and a plate-like resilient member arranged across the valve chamber. The resilient member has an annular fixed portion fixed on a circumferential wall of the valve chamber and a tongue piece portion radially extending from a radial one side of the annular fixed portion to extend an end thereof beyond an inner edge on a radial other side of the annular fixed portion. The tongue piece portion is formed to be deflected toward the valve seat side from the fixed portion and is resiliently contacted with the spherical valve body at a center part thereof for disengageably pressing the spherical valve body against the valve seat.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: March 26, 2013
    Assignee: Advics Co., Ltd.
    Inventor: Fumitoshi Koyama
  • Patent number: 8397749
    Abstract: An oil jet assembly includes a body, a tube, a cap insert, a ball, and a spring. The body includes a bore passing longitudinally through the body; a tube aperture passing through the body near a first end of the body; and an opening at a second and opposite end of the body. The tube is attached to the body and in fluid communication with the tube aperture. The cap insert is positioned within the bore of the body. The cap insert includes a bore that passes longitudinally through the cap insert to form a wall. The cap insert also includes an oil exit aperture passing though the wall and is in fluid communication with the bore of the body. The ball and spring are positioned within the bore of the insert cap. The spring is positioned between the ball and the first end of the body.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: March 19, 2013
    Assignee: Metaldyne Company LLC
    Inventors: Jose Correa Neto, Truman Allen Potter, Jr., George Lanni
  • Publication number: 20130066278
    Abstract: Various embodiments are directed to a modular valve apparatus. The modular valve apparatus includes a retaining component having an opening on either end. The modular valve apparatus further includes a cap component having a hole bored through. The cap component may be adapted to be coupled with the retaining component. A generally annular spring component may be disposed within the retaining component and seated on a lower end extending axially toward an upper end of the retaining component. A check ball may be disposed within the retaining component and seated on the spring component. The check ball may be adapted to block the opening bored through the cap component while being held in place by the spring component.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 14, 2013
    Applicant: KMQ, INC.
    Inventors: James B. Holland, George Hsu
  • Patent number: 8376737
    Abstract: Provided is a hot air blower comprising a fuel tank for storing fuel, an air compression pump for sucking air and compressing the air, a pressure regulation valve installed at the air compression pump to reduce the pressure of the compressed air, a burner assembly for receiving the fuel from the fuel tank and the air from the air compression pump, and a combustion chamber for receiving the fuel from the burner assembly and combusting the fuel, wherein the pressure regulation valve includes a high pressure regulation valve and a low pressure regulation valve, and a valve opening/closing means is installed at the low pressure regulation valve.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: February 19, 2013
    Assignee: Paseco Co. Ltd.
    Inventor: Jae seok Kwak
  • Publication number: 20130025713
    Abstract: A poppet valve for a hydraulic coupling member has an internal, spring-loaded check valve (which may be a ball check valve) in fluid communication with a bleed passage. The check valve may be configured as a pressure-relief valve which bleeds off excess hydraulic fluid pressure within the coupling member to a preselected value. A poppet valve according to the invention may be used in female coupling members and/or male coupling members. Certain embodiments of the invention may be retrofitted to coupling members of the prior art.
    Type: Application
    Filed: August 24, 2011
    Publication date: January 31, 2013
    Applicant: National Coupling Company, Inc.
    Inventor: Robert E. Smith, III
  • Publication number: 20120325331
    Abstract: A pressure regulator valve replacement assembly for maintaining a flow of transmission fluid to various fluid circuits within a Honda automatic transmission during low torque operation of a torque converter is disclosed. To accomplish this, the pressure regulator valve replacement assembly includes a valve piston subassembly having control diameters, and a valve chamber containing a check ball.
    Type: Application
    Filed: June 27, 2011
    Publication date: December 27, 2012
    Inventors: Todd V. Mangiagli, Edward J. Lee