Axes Of Ports Co-axial Patents (Class 137/493.9)
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Patent number: 11964726Abstract: A shock absorber includes: a damper tube accommodating a piston in a reciprocally movable manner; a suspension spring for urging the damper tube and a piston rod in opposite directions; a first male screw provided on an outer peripheral surface of the damper tube; a first nut screwed into the first male screw so as to enable a spring load of the suspension spring to be adjusted; a second nut screwed into the first male screw so as to enable a position of the first nut in an axial direction of the damper tube to be fixed; a second male screw having a reverse screw configuration to the first male screw and provided on the outer peripheral surface of the damper tube; and a damper head screwed into the second male screw so as to enable the damper head to cover one end portion of the damper tube.Type: GrantFiled: August 21, 2020Date of Patent: April 23, 2024Assignee: HITACHI ASTEMO, LTD.Inventor: Yuka Kubotera
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Patent number: 11795049Abstract: A flow-through pressure-vacuum valve includes a valve body having a tank-side opening and a vent-side opening. A pressure relief valve (e.g., a ball held in a corresponding seat by gravity) is positioned within a first passageway through the body. The ball is moved from the first valve seat to open the first passageway when pressure at the tank-side opening exceeds pressure at the vent-side opening by a predetermined pressure differential. A vacuum relief valve is positioned within another passageway (e.g., a serpentine passageway). The vacuum relief valve (e.g., also a ball held in a corresponding seat by gravity) is positioned within the serpentine passageway. Analogously, the ball is moved from the valve seat to open the serpentine passageway when pressure at the tank-side opening is less than the pressure at the vent-side opening by a predetermined pressure differential.Type: GrantFiled: December 30, 2021Date of Patent: October 24, 2023Assignee: Vapor Systems Technologies, Inc.Inventors: Rodger Preston Grantham, Douglas Alan Harty, Gregg Marshel
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Patent number: 11578711Abstract: A fluid routing plug for use with a fluid end section. The fluid end section being one of a plurality of fluid end sections making up a fluid end side of a high pressure pump. The fluid routing plug is installed within a horizontal bore formed in a fluid end section and is configured to route fluid between an intake and discharge bore. The fluid routing plug comprises a plurality of first and second fluid passages. The first and second passages do not intersect and are offset from one another. The first fluid passages are configured to direct fluid delivered to the horizontal bore from intake bores towards a reciprocating plunger. The second fluid passages are configured to direct fluid pressurized by the plunger towards a discharge bore.Type: GrantFiled: February 10, 2022Date of Patent: February 14, 2023Assignee: Kerr Machine Co.Inventors: Micheal Cole Thomas, Christopher Todd Barnett, Kelcy Jake Foster, Nicholas Son, John Keith, Mark S. Nowell
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Patent number: 11306686Abstract: A fluid control valve includes a housing body, a valve member, and a cap. The housing body includes a pipe part and a valve housing part. The valve housing part includes a valve opening, a pair of flat surfaces and an open end. In addition, the valve housing part houses the valve member configured to open and close the valve opening. The valve housing part has a central axis oriented perpendicular to a central axis of the pipe part. The cap closes the open end of the valve housing part. The flat surfaces are formed on opposite sides of a plane including the central axis of the valve housing part and the central axis of the pipe part. Each of the flat surfaces extend perpendicularly to the central axis of the valve housing.Type: GrantFiled: May 29, 2019Date of Patent: April 19, 2022Assignee: Aisan Kogyo Kabushiki KaishaInventors: Katsuhiko Makino, Yasuhiro Tsuzuki
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Patent number: 11105437Abstract: A valve assembly for a fluid pump includes a valve body; an inlet disk movably disposed in the valve body; an outlet disk movably disposed in the valve body; and a valve seat fixed within the valve body. The valve seat includes a first aperture defined axially through the valve seat in a radial central portion thereof, and one or more second apertures disposed at least partly around the first aperture. The inlet disk is biased in a closed position against the valve seat along a first surface thereof, the closed position of the inlet disk covering the one or more second apertures of the valve seat. The outlet disk is biased in a closed position against the valve seat along a second surface thereof.Type: GrantFiled: June 29, 2018Date of Patent: August 31, 2021Assignee: Continental Automotive Systems, Inc.Inventors: James Fochtman, John Walters, Tyler Craven
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Patent number: 11015407Abstract: A downhole tool having a flapper valve assembly for controlling the backflow of fluid into a tubing string that includes at least one flapper. The downhole tool also includes a deformable element that maintains the at least one flapper in an open position after the deformable portion is deformed. A downhole tool having a flapper valve assembly for controlling the backflow of fluid into a tubing string that includes at least one flapper. The downhole tool also includes a sleeve slidably disposed within at least a portion of the flapper valve assembly and the downhole tool. The downhole tool includes a deformable and dissolvable seat disposed uphole and adjacent to the sleeve and a dissolvable fluid blocking member to engage with the seat to shift the sleeve from first position to a second position within the downhole tool. Methods of using these downhole tools are provided.Type: GrantFiled: May 25, 2018Date of Patent: May 25, 2021Assignee: Thru Tubing Solutions, Inc.Inventors: Brock Watson, Roger Schultz, Andy Ferguson
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Patent number: 11001334Abstract: A mechanism and method for externally adjusting the mid-valve stiffness is described and enables adjustment of a mid-valve functionality without disassembly of a suspension system incorporating the invention. The effect of this adjustment on the damping curve is far greater than either low-speed compression adjusters or conventional high-speed compression adjusters. The apparatus combines the valve-stiffening system of a high speed compression adjuster with the sensitivity of the mid-valve. Externally accessible adjustment members are operatively coupled to the mid-valve components located internally in a fork so that manipulation of the adjustment members causes adjustment of the mid-valve and the damping force created by the mid-valve. The apparatus may be utilized in closed cartridge suspension forks (CCSF) and open cartridge suspension forks (OCSF) and other shocks or suspension dampers.Type: GrantFiled: October 18, 2018Date of Patent: May 11, 2021Assignee: Kreft, LLCInventor: Adam Krefting
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Patent number: 10711860Abstract: The first piston body includes a first passage which has a first opening that opens to the first chamber on the coupling surface with the second piston body and extends in the axial direction, and a second passage which has a second opening on the coupling surface, extends in the axial direction and has a third opening that opens to the second chamber, the second piston body is coupled to the first piston body to prevent direct communication with the first chamber of the second opening, the second opening has an inner opening portion that opens further inward in the radial direction than the first opening, and the inner opening portion communicates with a third passage formed in the second piston body.Type: GrantFiled: January 20, 2016Date of Patent: July 14, 2020Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventor: Masahiro Ashiba
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Patent number: 10551856Abstract: A valve body and a control valve including such a valve body, the valve body including an inlet, an outlet, and a valve port defined therebetween. The valve body also includes a plurality of discrete flow channels that extend between the inlet and the valve port to distribute fluid flow to the valve port in a manner that equalizes the velocity of fluid at the perimeter of the valve port. The plurality of discrete flow channels includes (i) one or more first flow channels arranged to direct a first amount of the fluid flow to a front portion of the valve port, (ii) one or more second flow channels arranged to direct a second amount of the fluid flow to a rear portion of the valve port, and (iii) one or more third flow channels arranged to direct a third amount of the fluid flow to one or both side portions of the valve port.Type: GrantFiled: February 23, 2017Date of Patent: February 4, 2020Assignee: FISHER CONTROLS INTERNATIONAL LLCInventors: Jason G. Olberding, Thomas N. Gabriel
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Patent number: 10443301Abstract: Thief hatches with diaphragm assisted sealing are disclosed. An example apparatus includes a base attachable to a tank, and a cover attachable to the base via a hinge. The example apparatus further includes a vacuum seal assembly couplable to the cover, and a diaphragm coupled to a stem of the vacuum seal assembly. The diaphragm is moveable in response to a pressure differential between a first pressure within the tank and a second pressure exterior to the tank.Type: GrantFiled: March 27, 2017Date of Patent: October 15, 2019Assignee: Emerson Process Management Regulator Technologies Tulsa, LLCInventors: Istvan Bartha, Cristian Amza, John Cockerham, Vlad Cristinel Hanceanu, Silviu Vasile Rebreanu
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Patent number: 10295074Abstract: A check valve includes a valve case, a positive pressure valve, a spring, and a negative pressure valve. The positive pressure valve is slidably disposed in a valve chamber of the valve case. The spring urges the positive pressure valve to abut on a positive pressure valve seat of the valve case. The negative pressure valve is on the positive pressure valve to abut on a negative pressure valve seat of the positive pressure valve. The negative pressure valve closes a communicating passage in the positive pressure valve in a normal state, and opens it when a pressure in the fuel tank falls to a predetermined value or less.Type: GrantFiled: November 15, 2016Date of Patent: May 21, 2019Assignee: PIOLAX, INC.Inventor: Kosei Yamaguchi
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Patent number: 10239376Abstract: A hydraulic damper including a piston assembly having a piston body including at least two first channels and at least two second channels. The first and second channels are sloped. A compression side of each of the first channels is positioned radially outward relative to a rebound side. A rebound side of each of the second channels is positioned radially outward relative to a compression side. At least one main disc at least partially covers the rebound side of each of the first channels, and at least one main disc at least partially covers the compression side of each of the second channels. At least one supplementary channel is positioned radially inward with respect to the first and second channels. At least one supplementary disc at least partially covers at least one of a rebound side and a compression side of the at least one supplementary channel.Type: GrantFiled: August 18, 2017Date of Patent: March 26, 2019Assignee: BEIJINGWEST INDUSTRIES CO., LTD.Inventor: Pawel Slusarczyk
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Patent number: 10167966Abstract: A reliable low-wear ventilating valve for mounting on a sewer pipe, to prevent the development of a negative pressure and also to prevent the escaping of unpleasant odors. The ventilating valve includes a tubular body, one end of which is configured as a fastening piece for mounting on a sewer pipe and the other end of which is configured as a ventilating valve head which has inlet openings for the inlet air into the sewer pipe, which are located between concentric rings which are arranged at a distance from the tubular body and extending symmetrically about the latter on ribs of the tubular body.Type: GrantFiled: March 24, 2016Date of Patent: January 1, 2019Assignee: Capricorn S.A.Inventor: Maciej Dobrowolski
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Patent number: 10088064Abstract: A drilling method comprising running a drill string (12) part way into a bore (11); then pumping fluid through the drill string; then running the drill string further into the bore; and then reconfiguring a check valve (20) located towards the distal end of the drill string from a running configuration, in which the valve permits flow both up and down the string, to a drilling configuration in which the valve permits flow down through the string but prevents flow up through the string.Type: GrantFiled: November 27, 2012Date of Patent: October 2, 2018Assignee: Churchill Drilling Tools LimitedInventor: Andrew Churchill
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Patent number: 10065184Abstract: The present invention is a pipette-filtration assembly having a main body defining a first channel, a second channel, a first valve, and a second valve. The first valve is associated with the first channel and permits flow in a first direction while substantially hindering flow in a second direction. The second valve is associated with the second channel and permits flow in the second direction while substantially hindering flow in the first direction. At least one filter is used to filter a fluid sample as the fluid sample flows in the first direction and/or the second direction. The pipette-filtration assembly is preferably disposable and includes one or two stages of integral filtration, primarily for use with an air-displacement pipetting or transfer system.Type: GrantFiled: December 22, 2015Date of Patent: September 4, 2018Assignee: BacterioScan Ltd.Inventors: Dana A. Marshall, Robert W. Beckmann
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Patent number: 10022876Abstract: Provided is a joint structure for a robot which can prevent leakage of a lubricant which is charged to the interior of the joint structure while improving a drip-proof property. The joint structure for the robot includes: a first arm which is hollow; a second arm which is rotatably mounted to the first arm; a power transmission mechanism which is provided adjacent to the outside of the first arm, the power transmission mechanism including a gear and an inner space which houses the gear and is charged with a lubricant; a booster section which increases a pressure in an interior of the first arm to be higher than an outside pressure; and a one-way communication section which allows the interior of the first arm and the inner space to communicate with each other and a gas in the interior of the first arm to flow into the inner space, while preventing the lubricant in the inner space from flowing out to the interior of the first arm.Type: GrantFiled: April 3, 2017Date of Patent: July 17, 2018Assignee: FANUC CORPORATIONInventors: Satoshi Kinoshita, Yasuyoshi Tanaka, Satoshi Adachi, Hideyuki Watanabe
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Patent number: 9987900Abstract: A fluid damper assembly for use in a vehicle includes a piston subassembly which includes a plurality of inflow passages and at least one rebound disk for restricting flow of hydraulic fluid through the inflow passages. A rod extends through the piston subassembly to actuate the piston subassembly between a rebound stroke and a compression stroke. An actuator supported by and within the rod includes a piezoelectric device and an amplifier for adjusting the damping force during the rebound stroke, thereby adjusting the suspension of the vehicle. A shaft within the rod is connected to a retainer to transmit motion from the amplifier to compress a spring and disengage the retainer from the rebound disk to allow the rebound disk to flex solely in response to hydraulic fluid pressure from the rebound stroke to open the inflow passages and reduce the damping force during the rebound stroke.Type: GrantFiled: October 28, 2014Date of Patent: June 5, 2018Assignee: BeijingWest Industries Co., Ltd.Inventors: Alireza Farjoud, David John Barta, Michael W. Hurtt, Michael S. Rinn, Timothy Michael Schlangen
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Patent number: 9951839Abstract: A preloading device for a piston valve of a vibration damper includes a spring element which is fitted by an inner diameter onto a radially inner centering device which serves for inner centering of the spring element in the installed state of the preloading device. To provide a preloading device for a piston valve by which a reliable inner centering of a spring element can be ensured but which can be placed with low expenditure on assembly at the same time, the spring element is axially fixed at the centering device via retaining means in that the retaining means at least partially enclose the spring element axially on both sides and are rigidly connected to the centering device in each instance.Type: GrantFiled: December 17, 2014Date of Patent: April 24, 2018Assignee: ZF Friedrichshafen AGInventors: Helmut Baalmann, Hassan Asadi, Hans Gonschorrek, Lothar Krill, Alexander Kruse, Oswald Lichtlein, Dirk Litterscheid, Thomas Manger, Heinz Sydekum, Harun Tucovic
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Patent number: 9796262Abstract: A valve assembly for a tank of a vehicle and a method of creating a vacuum are disclosed. A valve body defines a cavity and an outlet in fluid communication with the cavity for venting the tank. The assembly includes a seat disposed in the cavity of the valve body. The seat separates the cavity into first and second cavity portions. The seat defines an aperture to provide fluid communication between the first and second cavity portions. The assembly includes a cover device disposed between the seat and the outlet. The cover device defines at least one hole therethrough. The cover device is movable between a rest position engaging the seat to minimize fluid communication between the aperture and the hole and an actuated position spaced from the seat to increase fluid communication between the aperture and the hole when a vacuum is created in the first cavity portion.Type: GrantFiled: December 15, 2014Date of Patent: October 24, 2017Assignee: Eaton CorporationInventor: Vaughn Kevin Mills
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Patent number: 9784377Abstract: An embodiment provides a check valve including a valve case, a positive pressure valve having a resin ring sealing member, and a resin negative pressure valve. The positive pressure valve and the negative pressure valve are disposed in the valve case. The positive pressure valve includes a first mount surface and a second mount surface disposed on an inner diameter side of the first mount surface. In the valve case, a presser cap is mounted on the positive pressure valve so as to sandwich the ring sealing member and the negative pressure valve with the first mount surface and the second mount surface of the positive pressure valve.Type: GrantFiled: October 8, 2015Date of Patent: October 10, 2017Assignee: PIOLAX, INC.Inventor: Kosei Yamaguchi
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Patent number: 9726183Abstract: Systems and methods for preventing diffusers in pumps such as electric submersible pumps from bursting or collapsing in over-pressure and/or under-pressure conditions, where one or more diffusers in the pump includes check valves in the exterior diffuser wall. The check valves remain closed when a pressure differential between the diffuser interior and exterior is within a predetermined range, but open when the pressure differential between the diffuser interior and the interstitial space is outside the predetermined range to relieve overpressure and underpressure conditions. When the pressure differential returns to an acceptable range, the check valves close, preventing recirculation of fluid between the diffusers of the different stages. O-rings or other types of seals may be installed between each stage and the pump housing to provide some isolation of the external pressure on the diffuser of each stage.Type: GrantFiled: March 13, 2013Date of Patent: August 8, 2017Assignee: Baker Hughes IncorporatedInventors: Ryan P. Semple, Josh S. Ledbetter, Peter F. Lawson
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Patent number: 9506573Abstract: A hydraulic valve for connecting a first fluid-conducting pressure line to a second fluid-conducting pressure line in an actuator for activating a high- or medium-voltage circuit breaker includes a housing with a first channel inlet for attachment to the first pressure line, and with a second channel inlet for attachment to the second pressure line, and a cavity situated between the first and the second channel inlet. The hydraulic valve includes a sealing body which can move in the cavity and has a circumference which is greater, at least at one point, than the respective circumference of openings adjoining the cavity, of the first and the second channel inlets. The sealing body is geometrically matched to the cross-section of these openings to completely seal the openings when seated. First and second spring elements connected to the sealing body project into the cavity in the relaxed state.Type: GrantFiled: April 15, 2015Date of Patent: November 29, 2016Assignee: ABB Schweiz AGInventors: Matthias Schmidt, Niko Robens
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Patent number: 9441749Abstract: The invention described herein is a vacuum relief valve for rail way tanks, truck tanks, or any other analogous closed containers in which a valve prevents implosions from an interior vacuum pressure. The valve contains a novel biasing assembly and spring housing with constant force springs and this assembly is operatively attached to the tank. The pressure from these springs is such that only when the interior tank vacuum becomes greater than the springs' preset value will air enter the valve and the operatively attached tank. No increasing pressure from the biasing assembly is necessary to maintain the air flow into the valve at the air flow's initial rate.Type: GrantFiled: October 8, 2014Date of Patent: September 13, 2016Inventor: Barry LaCroix
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Patent number: 9358013Abstract: An intra-bronchial device placed and anchored in an air passageway of a patient to collapse a lung portion associated with the air passageway. The device includes a support structure, an obstructing member carried by the support structure that reduces ventilation to the lung portion by preventing air from being inhaled into the lung portion, and at least one anchor carried by the support structure that anchors the obstruction device within the air passageway. The anchor may engage the air passageway wall by piercing or friction, include a stop dimensioned for limiting the piercing of the air passageway wall, and may be releasable from the air passageway for removal of the intra-bronchial device. The anchors may be carried by a peripheral portion of the support structure, or by a central portion of the support structure. The obstructing member may be a one-way valve.Type: GrantFiled: February 13, 2015Date of Patent: June 7, 2016Assignee: Spiration, IncInventors: David H. Dillard, Hugo X. Gonzalez, Seung Yi, Lauri J. DeVore, Mia Park, Dean T. Corcoran, Jenni Rimbaugh, Clifton A. Alferness
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Patent number: 9234601Abstract: Described herein is a pressure relief valve that vents contents from a rail tank car or similar container at two preset pressures. The lower preset pressure is attained whenever specific valve attachment devices melt well below the spontaneous combustion temperature of the contents of a rail tank car or similar container. When these attachment devices melt, formerly attached corresponding constant force spring assemblies disconnect from a spring plate. Without these operative attached spring assemblies there is less force to oppose the pressure from the contents of rail tank car or similar container. With less opposing force, the contents of the rail tank car or similar container escape from under a dislodged sealing disk before the rail tank car or similar container (i) over pressurizes and causes the tank shell to fail or (ii) the contents self-combust, and both of which events cause an explosion.Type: GrantFiled: April 12, 2014Date of Patent: January 12, 2016Assignee: Kelso Technologies Inc.Inventors: Barry LaCroix, Mario Nunez
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Patent number: 9181944Abstract: A valve body is provided with a discharge relief portion. A relief valve outlet is formed in an end face thereof on a central axis of the valve body. Discharge valve inlets are point-symmetrically formed with respect to the central axis. A discharge valve outlet is formed in another end face thereof and relief valve inlets are point-symmetrically formed with respect to the central axis. A discharge valve outlet and the discharge valve inlets communicate with each other. A flow of fuel from a pressurization chamber to a fuel discharge port is restricted by a discharge valve member capable of closing the discharge valve outlet. The relief valve outlet and the relief valve inlets communicate with each other. A flow of fuel from the fuel discharge port to the pressurization chamber is restricted by a relief valve member capable of closing the relief valve outlet.Type: GrantFiled: March 29, 2012Date of Patent: November 10, 2015Assignee: DENSO CORPORATIONInventors: Masatoshi Kuroyanagi, Shinobu Oikawa, Tatsuro Koga
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Patent number: 9163738Abstract: Described herein is an improved externally mounted pressure relief valve that is especially adapted for rail tank cars or other large closed containers that contain or transport fluids, including liquids and gases. The pressure relief valve comprises a plurality of spring assemblies, and each spring assembly contains a pre-determined number of spring leaves. Each spring assembly is coiled upon a corresponding spring drum, and each spring drum is penetrated by a corresponding spring drum bolt. The spring assemblies are preferably aligned in at least two horizontal planes that are parallel to each other and normal to the vertical length of a spring block. The spring block and sealing disk are mounted vertically over the valve seat and within the confines of vertically extending spring brackets.Type: GrantFiled: September 28, 2013Date of Patent: October 20, 2015Assignee: Kelso Technologies INc.Inventor: Barry LaCroix
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Patent number: 9073521Abstract: A reservoir for storing and dispensing a fluid, the reservoir comprising a hollow vessel for holding a volume of fluid, an inlet port located on the hollow vessel for filling the reservoir with fluid, an outlet port located on the hollow vessel for dispensing the fluid, and a vent outlet located on the hollow vessel to permit venting during filling and dispensing operations. The vent outlet is provided in the form of a vent tube having a vent seal located at a base thereof. The vent seal allows for venting as required, while also serving as a flow restrictor to reduce the leakage of fluid from the vent tube in the event of sloshing within the reservoir.Type: GrantFiled: September 23, 2011Date of Patent: July 7, 2015Assignee: Salflex Polymers LimitedInventors: Jarek R. Gorecki, Kulbir Singh Dhillon, Dirk Alfred Biese, Karl-Willi Meyer, Robert Virtu
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Patent number: 9027590Abstract: A ventilation arrangement for the head space of the fuel tank of a vehicle comprises a switchable main valve intended for adjusting an arbitrary pressure in the head space of the tank. By way of the opening position of the main valve, a connection between a connection (5) intended for connection to the head space and a connection (6) intended for connection to the surrounding atmosphere is established, wherein the main valve is assigned a pilot valve, which opens during a first path element of a switching movement, wherein the main valve only opens following this first path element. Because of the small cross section of the pilot valve and the pressure relief that materialized through its opening, the switching power can be reduced and a smaller size drive can be employed.Type: GrantFiled: September 14, 2012Date of Patent: May 12, 2015Assignee: A. Kayser Automotive Systems GmbHInventors: Torsten Gerlich, Gerhard Müller-Riederer
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Patent number: 8993181Abstract: A valve-closing pressure chamber and a valve-opening pressure chamber are arranged on both sides of a main diaphragm inside an outlet shutoff valve. An upper supply/discharge tube and a lower supply/discharge tube are connected to a housing forming the outlet shutoff valve. The upper and lower supply/discharge tube supply and discharge air to and from the valve-closing pressure chamber and the valve-opening pressure chamber, respectively. An opening end, which is on the pressure chamber side, of each supply/discharge tube is obliquely cut relative to the direction of axis of the supply/discharge tube, which increases the opening area of the opening end. This prevents water present in the pressure chamber from adhering to the opening end of each supply/discharge tube and prevents the adhered water from freezing. As a result, operation performance of the outlet shutoff valve is enhanced.Type: GrantFiled: January 25, 2012Date of Patent: March 31, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masahiro Takeshita
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Patent number: 8967193Abstract: A device for ventilating and aerating a fuel tank includes a tank shut-off valve and two tank pressure control valves. One of the tank pressure control valves opens in response to an overpressure in the fuel tank and the other one of the tank pressure control valves closes in response to a negative pressure in the fuel tank. A valve unit which is formed from one or multiple of the valves is mountable vertically or horizontally and has a fuel connection which communicates with the fuel tank and a filter connection which communicates with an activated carbon filter. The two connections are generally oriented parallel and point downwards in vertical mounting position of the valve unit and in sideward direction(s) in horizontal mounting position of the valve unit and are arranged at or near the bottom side of the valve unit.Type: GrantFiled: December 16, 2011Date of Patent: March 3, 2015Assignee: Audi AGInventor: Harald Hagen
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Publication number: 20140216573Abstract: A check valve includes a casing including a positive pressure valve seat, a positive pressure valve urged by a positive pressure valve spring and including a negative pressure valve seat, and a negative pressure valve assembled to the positive pressure valve and urged by a negative pressure valve spring, where the positive pressure valve includes an inner cylinder, an outer cylinder that is connected with an outer circumference of the inner cylinder via ribs, and passages formed between the inner cylinder and the outer cylinder, where the positive pressure valve spring is disposed the casing and the outer cylinder, and where the negative pressure valve spring is disposed in the inner cylinder.Type: ApplicationFiled: March 30, 2012Publication date: August 7, 2014Inventor: Kosei Yamaguchi
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Patent number: 8789557Abstract: A ventilation arrangement for the head space of the fuel tank of a vehicle consists of a valve assembly received in a housing (30), which assembly is arranged to produce a maximum pressure, which is not to be exceeded, a minimum pressure below which the pressure must not fall, and a random pressure, for example, for the tank filling process, within the head space. For this purpose a valve which is biased by a spring (25) in the direction towards an atmospheric connector (6) and is characterised by a sealing plate (17), and a valve biased by a spring (19) in the direction towards a connector (5) intended for connection to the head space, and a valve characterised by a sealing head (24) are provided, the latter of which is simultaneously connected to an electromagnetic drive in order to produce the random pressure.Type: GrantFiled: September 2, 2011Date of Patent: July 29, 2014Assignee: A. Kayser Automotive Systems GmbHInventors: Gerhard Müller-Riederer, Bernd Kipp
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Patent number: 8776822Abstract: An inflow protection device for preventing liquids and other contaminants from entering a water-carrying pipeline through an air valve connected to the pipeline. The inflow protection device includes an adaptor and an elongated vent pipe. The adaptor has a first end for coupling with an outlet of the air valve and second end. The vent pipe has a first end configured for directly or indirectly coupling with the second end of the adaptor and a second end extending out of and above a vault in which the air valve is installed. The vent pipe is of a length sufficient to position its second end above a flood plain level so that the second end allows air to be exhausted from and admitted into the air valve even when the vault in which the air valve is located becomes flooded.Type: GrantFiled: July 27, 2012Date of Patent: July 15, 2014Assignee: Odor Control Specialties, LLCInventor: Mark McIntire
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Patent number: 8757198Abstract: A spring retaining sleeve includes a cylinder press-fit connection surface which has a press-fit diameter and a press-fit length. To enable cost-effective production of a stable press-fit assembly, at least one end of the cylinder press-fit connection surface, an optimized insertion chamfer for long press-fit assemblies is provided with a ratio of press-fit diameter to press-fit length of greater than thirty five percent.Type: GrantFiled: March 6, 2009Date of Patent: June 24, 2014Assignee: Robert Bosch GmbHInventors: Angelo Santamaria, Jochen Aleker
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Patent number: 8672364Abstract: A quick disconnect device for connecting a sprayer tank to a portable pump assembly has a tubular body with an internal passageway for conveying gas between the sprayer tank and the portable pump assembly. A first plunger member is mounted within the internal passageway of that device for moving reciprocally between the sprayer tank and the portable pump assembly. A second plunger member, mounted within the internal passageway, moves reciprocally between the sprayer tank and the portable pump assembly. A first resilient member urges the first plunger member away from the sprayer tank to prevent gas from flowing into the sprayer tank. A second resilient member urges the second plunger member toward the sprayer tank to prevent gas from flowing out of the sprayer tank. The first plunger member moves toward the sprayer tank to overcome the spring constant of the first resilient member to direct gas from the portable pump assembly into the sprayer tank.Type: GrantFiled: November 9, 2010Date of Patent: March 18, 2014Assignee: Forefront Product Design, LLCInventors: Phillip B. Schrum, Mark A. Verosky, David J. Krygowski
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Patent number: 8607825Abstract: A non-return valve includes a valve housing having at least one inlet, at least one outlet, a first valve seat and a second valve seat; and an at least partially flexible sealing member forceable into a scaling engagement with the first valve seat in response to a first differential pressure and forceable into a sealing engagement with the second valve seat in response to a second differential pressure.Type: GrantFiled: January 24, 2011Date of Patent: December 17, 2013Assignee: Eagle Actuator Components GmbH & Co. KGInventors: Torsten Gerlich, Volker Daume, Markus Porsch
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Valve assembly for a differential pressure sensor with automatic zero point calibration and flushing
Patent number: 8602053Abstract: A valve assembly (1) included in a system for measuring differential pressures in a fluid system and where the valve assembly (1) includes a valve body (7) with an inlet (13) and an outlet (14) for connection to the fluid system, ducts (32, 33) for communication with a differential pressure sensor (12) for registration the differential pressure, a cavity (22) including a calibration cone (10) which is movable in the cavity (22) between a measuring position and a position for zero point calibration/flushing via the valve assembly (1). In instances when the measuring position of the device does not exists, the calibration cone (10) separates the differential pressure sensor (12) from the fluid system, i.e., in its initial position, and, at the same time, the valve assembly (1), in this position, is automatic flushed so as to get rid of any enclosed air in the valve assembly (1).Type: GrantFiled: May 27, 2011Date of Patent: December 10, 2013Assignee: TA Hydronics AGInventor: Daniel Jjilderos -
Patent number: 8602054Abstract: A valve assembly (1) for measuring differential pressures in a fluid system where the valve assembly includes a differential pressure sensor (12) for registration of differential pressures, a first cavity (22) with a calibrating cone (10) displaceable between measuring and a zero point calibration/flushing position. The valve assembly (1) includes a valve body (7) with two connections (13, 14) and a second cavity (15) arranged with a safety valve cone (8) which protects the differential pressure sensor (12). The safety valve cone (8), by differential pressures higher than a dimensioned value, is moved in a direction towards the low pressure side and, as a result, a passage between high and low pressure side is opened, from one connection (13) to the other connection (14) via the second cavity (15) and via provided cavities (24) and recesses (25) in the safety valve cone (8), whereby a pressure equalizing occurs.Type: GrantFiled: May 27, 2011Date of Patent: December 10, 2013Assignee: TA Hydronics ABInventor: Daniel Jilderos
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Patent number: 8561638Abstract: A check valve includes a main-casing, a sub-casing, a positive-pressure valve and a negative-pressure valve. The positive-pressure valve has through holes and a negative-pressure valve seat. The negative-pressure valve has leg portions. A cap is disposed within the positive-pressure valve. A positive-pressure spring is disposed between the positive-pressure valve and the sub-casing, and a negative-pressure spring is disposed between the positive-pressure valve and the cap. A positive-pressure flow path for releasing fuel vapor is formed between an outer circumference of the positive-pressure valve and an inner circumference of the main-casing, at further outward position than the positive-pressure spring. A negative-pressure flow path for introducing outside air is formed between an inner circumference of the positive-pressure valve and the leg portions and an outer circumference of the cap and between the through holes and the leg portions, at further outward position than the negative-pressure spring.Type: GrantFiled: August 21, 2009Date of Patent: October 22, 2013Assignee: Piolax Inc.Inventor: Kosei Yamaguchi
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Patent number: 8561637Abstract: A valve includes a housing configured to interengage with a container, a first and second poppets axially movable between open and closed positions, a first seal between the first poppet and the housing, a second seal between the first poppet and the second poppet, and first and second resilient members disposed within the housing and urging the first and second poppets toward the closed position.Type: GrantFiled: September 8, 2010Date of Patent: October 22, 2013Assignee: Girard Equipment, Inc.Inventors: Joseph Petrarca, Chris Lynch, Tim Girard, Michael Fernandez
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Patent number: 8528591Abstract: A micro valve includes a first valve chamber and a second valve chamber as well as a closing element, which is adjustable between an opening position, in which the valve chambers are connected to each other, and a closing position in which the valve chambers are separated from each other. A reference chamber is provided, which is delimited by the closing element.Type: GrantFiled: July 4, 2008Date of Patent: September 10, 2013Assignee: Robert Bosch GmbHInventors: Tjalf Pirk, Michael Stumber
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Patent number: 8490720Abstract: A mud saver valve is constructed so that the valve seats self align preventing the loss of fluid when the valve is in the closed position. One or both seats can skew their longitudinal axes to get the alignment.Type: GrantFiled: August 13, 2010Date of Patent: July 23, 2013Inventors: Tace Parley Hart, Albert Augustus Mullins
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Patent number: 8469089Abstract: An anchor tool having a housing, a one-way restrictor device in fluid communication with the housing, and a stabilizer affixed to the housing. The one-way restrictor device is configured to allow restricted flow in a first direction, and to allow flow in a second direction.Type: GrantFiled: January 4, 2010Date of Patent: June 25, 2013Assignee: Halliburton Energy Services, Inc.Inventors: Gary A. Maier, Jim B. Surjaatmadja, Fraser McNeil, Keith A. Rispler
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Patent number: 8459286Abstract: A pressure retention valve with integrated valve is disclosed. The pressure retention valve with integrated valve includes a housing; an outer piston positioned in the housing; a main seal between the outer piston and the housing; an inner piston positioned in the outer piston, the inner piston having a bore containing a valve; a spring between the housing and a top of the outer piston; an ambient bore in the housing above the main seal; an outlet in the housing below the main seal; and a vessel connection in the housing adjacent to the bore of the inner piston. Methods of supplying fuel to a gas consuming system using the pressure retention valve are also described.Type: GrantFiled: December 22, 2010Date of Patent: June 11, 2013Assignee: GM Global Technology Operations LLCInventors: Jurgen Thyroff, Oliver Maier
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Patent number: 8381758Abstract: A safety relief fill valve adapted to being an interface for filling and relieving excess pressure from a closed fluid system. An insert shell retains a piston member for movement between fluid input and fluid holding configurations, the piston member being resiliently biased toward fluid holding configuration. When in fluid holding configuration, the piston member sealingly engages an inlet bore of the insert shell. When in fluid input configuration, the piston member allows fluid flow through the inlet bore. A housing receives the insert shell, thereby limiting relative axial movement and forming a cavity between a portion of the housing the insert shell. This cavity provides mechanical guidance and a flow channel for an overpressure relief system having fluid retaining and fluid relief configurations, the overpressure relief system being elastically biased toward fluid retaining configuration. The elastic bias is overcome responsive to excess pressure within the closed fluid system.Type: GrantFiled: May 7, 2010Date of Patent: February 26, 2013Assignee: YSN Imports, Inc.Inventors: Shmuel Dovid Newman, Jeff Brown
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Patent number: 8375982Abstract: A hydraulic manifold has features adapted to the needs of hybrid vehicle applications. In one embodiment, multifunction valves selectively regulate fluid flow among primary and auxiliary flow paths. A normally closed butterfly valve is biased by a relatively small secondary biasing force against rotation in first and second (opposite) directions, and by a relatively large principal biasing force against rotation in the first direction past a transitional angular position at which the principal biasing force takes effect. An actuator selectively controls the transitional angular position and the magnitude of the principal biasing force. In the first direction, flow must overcome only the secondary biasing force to pass the valve. In the second direction, any flow sufficient to overcome the secondary biasing force but not the principal biasing force will divide into a first flow passing the valve and a second flow induced to enter an auxiliary path upstream.Type: GrantFiled: September 28, 2009Date of Patent: February 19, 2013Assignee: The United States of America, as represented by the Administrator of the U.S. Environmental Protection AgencyInventor: Charles L. Gray, Jr.
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Patent number: 8337470Abstract: An apparatus for facilitating fluid flow between an internal body structure and a device external to the body comprises a housing having proximal and distal chambers separated from one another by a wall and fluidly connected to proximal port and distal ports. The wall includes a valve selectively sealing first and second openings thereof and a canopy biased toward a sealing position sealingly surrounding the first opening. The bias of the canopy is set to define a first pressure differential at which the canopy is moved out of the sealing position to permit fluid transfer therepast in a first direction. A duck-bill stem extends through the second opening and includes a lumen extending therethrough with walls of the stem being biased toward a sealing position and configured so that, when a second pressure differential is applied at at least a second level, the first end opens to permit flow therepast.Type: GrantFiled: January 28, 2009Date of Patent: December 25, 2012Assignee: AngioDynamics, Inc.Inventors: Jayanthi Prasad, Tom Fisk, Jeff Gray
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Patent number: 8286658Abstract: A tank venting system is configured to regulate air and fuel vapor flow between a fuel tank and a fuel vapor recovery canister. A roll-over valve is included in the tank venting system.Type: GrantFiled: May 30, 2006Date of Patent: October 16, 2012Assignee: Stant USA Corp.Inventor: Jeffrey E. Devall
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Patent number: 8240329Abstract: Disclosed is an apparatus for providing in-line, three-state, dual flow metering, high pressure relief, for use in a system utilizing compressible or incompressible media, which includes a centrally disposed magnetically homed ball with opposing axially aligned ball mating valve seats, with a high pressure relief spring deployed to control the pressure necessary to trigger high pressure relief.Type: GrantFiled: November 13, 2009Date of Patent: August 14, 2012Assignee: Robust Systems Solutions, LLCInventors: Craig Shore, Aron Fleischmann