Valve Closes In Response To Excessive Flow Patents (Class 137/498)
  • Patent number: 10227929
    Abstract: Embodiments of a flow limiting duct vent valve (DVV) are provided, as are embodiments of a bleed air system including a flow limiting DVV. In one embodiment, the bleed air system a flow limiting DVV and a first valved device, such as a high pressure regulator. The DVV includes, in turn, a housing assembly having an inlet and an outlet. The inlet is fluidly coupled to the valved device when the bleed air system is installed on a gas turbine engine. A valve element is mounted in the housing assembly and, during operation of the DVV, moves from: (i) the closed position to an open vent position when the pressure differential across the valve element exceeds a first threshold, and (ii) from the open vent position to an overpressure shutoff position when the pressure differential across the valve element exceeds a second threshold greater than the first threshold.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: March 12, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Chris Schlarman, Adriel Reavis, Raul Velasquez
  • Patent number: 10221950
    Abstract: This disclosure is directed to couplers which significantly reduce the production of noise when disconnected from a mating coupler, thus addressing a significant occupational safety problem in the field of compressed air couplings. Accordingly, one aspect of the disclosure provides a coupler which may be used to connect/disconnect an air hose subjected to high air pressure while suppressing or dampening the noise typically produced upon disconnecting the coupler. In some examples, a coupler is provided with a valve having axial passageways that facilitate the relatively free flow of air during normal operation that become partially occluded upon an action disconnecting the coupler to significantly reduce sound levels.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: March 5, 2019
    Assignee: Stedlin Manufacturing Incorporated
    Inventor: Frank Stearns
  • Patent number: 10175701
    Abstract: Method and apparatus for air flow regulation comprise a vertically oriented tube, a sail assembly positioned in the tube and moveable therewithin responsively to air flow through the tube to regulate rate of air flow through the tube and to stop air flow through the tube upon air flow rate through the tube exceeding a preselected value with a detector for sensing when the sail assembly has stopped air flow thought the tube as a result of air flow rate exceeding said pre-selected value.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 8, 2019
    Inventor: Stephen B. Maguire
  • Patent number: 9809431
    Abstract: An oil return mechanism includes a base, a control switch, a first blocking ball mounted in the base, an elastic member mounted between the first blocking ball and the base. The base has a liquid storing cavity, a liquid returning cavity, a communicating cavity, a first communicating opening communicating between the liquid returning cavity and the communicating cavity, and a second communicating opening communicating between the communicating cavity and the liquid storing cavity. The present invention can regulate a speed of a fluid flowing from the liquid returning cavity to the communicating cavity, and has the advantages of simple structure and great reduction of cost.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: November 7, 2017
    Assignee: CHANGSHU TONGRUN AUTO ACCESSORY CO., LTD.
    Inventors: Jiang Chen, Junxue Ye, Jingfang Wang
  • Patent number: 9745830
    Abstract: Embodiments of the invention generally relate to a failsafe subsurface controlled safety valve. In one embodiment, a failsafe subsurface controlled safety valve assembly includes: a tubular housing; a closure member disposed in the tubular housing, wherein the closure member is movable between a closed position and an open position; an operating piston operable to move the closure member between the closed position and the open position; and a trigger piston operable to move the closure member from the open position to the closed position.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: August 29, 2017
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventor: Gary Benjamin Lake
  • Patent number: 9624749
    Abstract: The casing stripper device provides a housing for a stripper rubber that includes a top retainer, a base plate, and at least one rubber disc. A base place is secured within a drilling nipple. At least one disc is secured above the base plate. The number of rubber discs secured between the retainer and base plate will depend on the operation and pressure of the drilling operation. The top retainer is secured to the base plate with at least one rubber disc secured between the top retainer and the base plate.
    Type: Grant
    Filed: March 15, 2014
    Date of Patent: April 18, 2017
    Assignee: PRUITT TOOL & SUPPLY CO.
    Inventors: Grant Pruitt, Cris Braun
  • Patent number: 9624755
    Abstract: A wireline retrievable injection valve for an oil or gas well has an internal valve that is initially moved to open a flapper safety valve and also opens to allow fluid flow through the valve. The internal valve includes a sleeve that opens the flapper safety valve and shields the flapper safety valve from fluid. In this manner the flapper valve is protected from being caused to “flutter” or “chatter” due to pressure variations in the fluid flow, thereby damaging the seat.
    Type: Grant
    Filed: November 15, 2015
    Date of Patent: April 18, 2017
    Assignee: Tejas Research & Engineering, LLC
    Inventors: Thomas G. Hill, Jr., Robert C. Henschel
  • Patent number: 9410632
    Abstract: A shut-off valve to fill a tank with a gaseous medium. The shut-off valve includes a valve housing, a piston arranged in the valve housing for displacement in an axial direction and having an axially continuous bore, a first end piece having an outlet opening which is fluidically-connected to the axially continuous bore of the piston; and a second end piece having an inlet opening which is fluidically-connected to the axially continuous bore of the piston. A first end side of the piston and a first end side of the second end piece of the valve housing form a sealing seat upon contact therebetween.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: August 9, 2016
    Assignee: MAGNA STEYR Engineering AG & Co KG
    Inventor: Franz Mayr
  • Patent number: 9334061
    Abstract: A tank system may include a tank having a tank volume and mounted in a vehicle having a system CG and a system CG offset limit. The tank system may further include at least one outer baffle having an outer baffle port and dividing the tank volume into an inner compartment and at least one outer compartment. The outer baffle may be positioned such that when the outer baffle port is open and the combined volume of liquid in the inner and outer compartment is less than a total inner compartment volume, the system CG may exceed the system CG offset limit during a shift of a liquid CG, and when the outer baffle port is closed and the outer compartment is substantially empty of liquid, the system CG remains within the system CG offset limit during a shift of the liquid CG for at least one fill level of the inner compartment.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: May 10, 2016
    Assignee: The Boeing Company
    Inventors: Jeremie J. Albert, Jeffrey M. Thomas
  • Patent number: 9234600
    Abstract: A pipe break valve device includes a housing that has a recess continuous in a flow direction, a valve slide that is arranged displaceably in the flow direction in the recess, and a spatial volume of a throttle device that is arranged at least in regions between the outer wall of the valve slide and the inner wall of the housing. Throttle ducts that are present on the inlet side and on the outlet side are formed by a first gap and a second gap which are present in each case between the outer wall of the valve slide and the inner wall of the housing, and no sealing means are present between the inner wall of the housing and the outer wall of the valve slide.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: January 12, 2016
    Assignee: HORST THIELE MASCHINENBAU-HYDRAULISCHE GERATE GMBH
    Inventor: Ewald Thiele
  • Patent number: 9109430
    Abstract: An apparatus for containing and controlling the flow of hydrocarbons from a bore well or other earth formation includes a housing enclosing a receiving and distribution chamber, receiving and distribution chamber is in fluid communication with and sealably connected to a top vertical tubular member and a bottom vertical tubular member, wherein the top and bottom tubular members extend from the receiving and distribution chamber to the exterior of said housing. The apparatus further includes a cone aperture adapted to prevent or allow the flow of liquid into the top tubular member, at least one outlet passage between the receiving and distribution chamber and the exterior of the housing, valve means adapted to permit or prevent the flow of liquid through at least one of said outlet passages, and pump devices adapted to facilitate the flow of hydrocarbons through at least one of said outlet passages.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: August 18, 2015
    Inventor: Ruth C. Ibanez
  • Patent number: 9016310
    Abstract: An automatic water shut-off valve for low pressure includes: a body having a nipple formed at a lower portion thereof; a rubber diaphragm inserted into a protruding threaded pipe formed at an outside portion of the body; and a pressure supporter pressurizing the rubber diaphragm, wherein the pressure supporter has a drain hole and the fixing cap has a cap drain hole, so that the fluid is drained through a fluid flow hole of the rubber diaphragm in the case of compressible air fluid or at pressure lower than set pressure and is stopped when the fluid switching face of the rubber diaphragm is grounded to a fluid stop protrusion of the pressure supporter in the case of incompressible fluid or at pressure higher than set pressure.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: April 28, 2015
    Inventor: Hong Kun Shin
  • Publication number: 20150000762
    Abstract: Excess flow shutoff valve comprising a valve body, a valve plug, a partition, and an activation component where the valve plug, the partition, and activation component are disposed within the valve body. A suitable flow restriction is provided to create a pressure difference between the upstream end of the valve plug and the downstream end of the valve plug when fluid flows through the valve body. The pressure difference exceeds a target pressure difference needed to activate the activation component when fluid flow through the valve body is higher than a desired rate, and thereby closes the valve.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Micah S. Kiffer, Stephen Clyde Tentarelli
  • Patent number: 8844283
    Abstract: An exhaust-gas turbocharger is embodied with a bypass valve which is disposed in a bypass duct of a turbine between an exhaust-gas pressure line and an outlet cross section of the turbine of the exhaust-gas turbocharger and which is connected to an actuating device for controlling the throughput of exhaust-gas through the bypass duct. Through the bypass valve, a partial flow of the exhaust-gas can be guided past the turbine on demand. The bypass valve has a valve head and a valve stem. The bypass valve is axially movably held with the valve stem. The valve head, in a closed state of the bypass valve, can be placed against a valve seat in order to close the bypass duct in a gas-tight and pressure-tight manner. The side of the valve head that is connected to the valve stem faces the exhaust-gas pressure line.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 30, 2014
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Jens Kühlmeyer, Dirk Hagelstein, Eduard Lippert
  • Patent number: 8739825
    Abstract: A device for the protection against the rupture of pipes carrying a fluid includes two or more flow channels and a closing element which interrupts the flow of fluid if a predetermined permissible volume flow is exceeded. At least one of the flow channels can be closed by a test closure in order to increase the flow speed in the remaining flow channels and for test purposes to bring about a movement of the closing element into the closing position. In this way, devices for the protection against the rupture of pipes integrated into complex systems carrying a fluid can be tested in situ to verify their proper functioning.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: June 3, 2014
    Assignee: Airbus Operations GmbH
    Inventor: Juergen Laude
  • Patent number: 8714189
    Abstract: A flow valve that may act as either an excess flow valve or a pressure relief valve has a seat and a valve body for sealing against the seat. The valve body has an integral spring arm for biasing the valve body towards or away from the seat to seal or open a flow of fluid, and a magnet cooperating with the spring arm to position the body relative to the seat to maintain the body in a first position during a normal flow condition and maintain the body in a second position in an abnormal flow condition.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: May 6, 2014
    Assignee: Brasscraft Manufacturing Company
    Inventors: Mark Moses Koeroghlian, Michael Merlyn Klein
  • Patent number: 8701693
    Abstract: A check valve includes a valve body having a valve seat, a diffuser, a disc coupled to the diffuser, and a compression spring. The diffuser is positioned inside the valve body and has a forward face. The disc is coupled to and movable relative to the diffuser and has an upstream face and a downstream face. The compression spring biases the disc into a normally open position during forward flow. A check valve apparatus further comprises at least one test bore through the valve member in communication with the disc. A method for testing the operation of a passive check valve is also disclosed.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: April 22, 2014
    Assignee: Curtiss-Wright Flow Control Corp
    Inventors: Abraham Shelcoviz, Haykaz Mkrtchyan
  • Patent number: 8561639
    Abstract: The present invention provides, in part, a valve assembly and method that maintains balance of flow to pressure. In one embodiment, the present invention includes a main body component, a chamber body component, a fluid control plate and seal, and a chamber cap. The chamber body component is adapted to slidingly engage the main body member. A spring assists in biasing the chamber body component in position within the main body component. The chamber cap with a sealing ring assists in preventing backflow of fluid into an outer body or tube member while also providing an opposing force to movement of the chamber body member within the main body member. A sealing ring is also provided around the head portion of the chamber body member. An additional sealing ring can be provided in a cavity on the outside of the main body member.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: October 22, 2013
    Assignee: Quick Fitting, Inc.
    Inventors: David B. Crompton, Libardo Ochoa Dias
  • Patent number: 8534314
    Abstract: Disclosed is an explosion protection valve comprising a closing member (4) which is movable inside a housing (2), is guided along a guide bar (3), and can be displaced in a moving direction from a predefined open position into a sealing closed position in case of a shock wave or suction wave. The explosion protection valve further comprises a spring arrangement that is effectively connected to the closing member (4) in order to maintain the open position on the guide bar (3). Said spring arrangement is provided with a first spring element (5, 5?) and a second spring element (6, 6?) in relation to the respective moving direction. The spring elements are disposed such that the second spring element (6, 6?) can be impinged upon only following a predetermined spring travel (a) when the closing member (4) is displaced into the closed position.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: September 17, 2013
    Assignee: Rico-Sicherheitstechnik AG
    Inventor: Jurg Zellweger
  • Publication number: 20130133559
    Abstract: A fluid flow regulator of the present invention comprises in combination a stationary hollow duct housing having a first end and a second end through which fluid flows. The device also incorporates a movable member aligned concentric with the duct having an end essentially similarly shaped and sized to the first end of the housing. The member may be spaced apart from the duct so that fluid can enter the duct housing through an opening defined by the space between the end of the member and the first end of the duct, with the movement of the member serving to change the size of opening. The movement of the member is controlled by the movement of a float located within the duct.
    Type: Application
    Filed: May 30, 2012
    Publication date: May 30, 2013
    Applicant: FLSMIDTH A/S
    Inventor: John S. Salmento
  • Patent number: 8408242
    Abstract: Improvements in an Overflow Shutoff Valve (OSV) that is designed to automatically shutoff water flow when water flows above a rated amount. It is a self-cleaning design with automatic resetting function. The valve consists of an outer body with an inlet and outlet port with an internally installed rubber Venturi tube assembly, fixed flange, moving flange, coil spring and surge flow suppressing orifice. The lower pressure causes the rubber tube to be squeezed by the water pressure, and then automatically shuts off the valve. When the supply water pressure drops below 5 psi the Overflow Shutoff Valve automatically resets and opens to normal position. A flow suppressor orifice prevents any surge flow or start up flow which could cause premature shutoff of the valve. The Overflow shutoff valve can be installed in-line or in a Y body shutoff valve for easy service.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: April 2, 2013
    Inventor: Edward S Chang
  • Patent number: 8408228
    Abstract: A flow control device is comprised of a body/connector, a simplified sliding cord, a sealing device, and a stopper. The body/connector connects an overhead sprinkler to a supply line by means of male threaded ends. The body/connector is comprised of a wrench connector, which is located between the two male threaded ends, a guiding tube that sits on the top side of the body/connector with the assistance of the supporting ribs. The guiding tube guides the sliding cord up and down inside the flow control device and sprinkler. The sliding cord is made from a material that is flexible enough to bend inside the supply line and strong enough to return to its original straight shape. The stopper and the sealing device are connected to each other with the sliding cord. The sealing device sits against the sealing surface of the body/connector if the sprinkler head is missing. The stopper prevents the sealing device from making contact with the body/connector during normal operational conditions.
    Type: Grant
    Filed: April 24, 2010
    Date of Patent: April 2, 2013
    Inventor: Felipe Ernesto Jimenez
  • Patent number: 8402995
    Abstract: A flow-volume regulator has an elastic throttle body which delimits, between itself and a housing wall, a control gap that changes under the pressure of a fluid flow, and at least one associated bypass and/or cleaning channel that has at least one channel inlet arranged upstream of the control gap and at least one channel outlet arranged downstream of the control gap. The bypass and/or cleaning channel contains a valve which can move against a restoring force under the pressure of the oncoming fluid, from an open position into a closed position, and seals the bypass and/or cleaning channel in its closed position. The flow-volume regulator allows an additional volume of the fluid through the bypass channel when the oncoming fluid is at low pressure, so that its flow curve is significantly increased in the low pressure range.
    Type: Grant
    Filed: November 17, 2007
    Date of Patent: March 26, 2013
    Assignee: Neoperl GmbH
    Inventor: Uwe Zoller
  • Publication number: 20130056666
    Abstract: Internal valve apparatus are described. An example internal valve includes a body having a valve seat disposed in a fluid flow passageway between an inlet and an outlet. A flow control member is operatively coupled to the body and movable between a first position to engage the valve seat to restrict fluid flow through the valve and a second position to move away from the valve seat to allow fluid flow through the valve. A removable actuator is coupled to the body and operatively coupled to the flow control member to cause the flow control member to move between the first and second positions. A portion of the removable actuator is cantilevered in the fluid flow passageway between the inlet and the outlet when the removable actuator is coupled to the body.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 7, 2013
    Inventors: Chun Lin, Tung Kim Nguyen, Roy Ronald Pelfrey
  • Publication number: 20130037132
    Abstract: A pressure-control valve includes a housing (110) and a valve assembly (115) at least partially disposed within the housing. The housing has a sidewall (112) defining a conduit connecting an inlet opening (116) and an outlet opening (118), wherein the housing has a pressure vent (119) extending through the sidewall. The valve assembly includes: a valve seat (140), a valve support (120), a slidable member (130), and a biasing member (150). The slidable member is reversibly slidable between an open position and a closed position. The closed position interrupts fluid communication through the conduit between the inlet opening and the outlet opening. The slidable member has an upstream effective cross-sectional area greater than its downstream effective cross-sectional area. Sealing members (137,139) forming seals between the slidable member and the sidewall, and a pressure vent is disposed between the seals. A biasing member (150) biases the valve assembly (155) toward the open position.
    Type: Application
    Filed: April 20, 2011
    Publication date: February 14, 2013
    Inventor: Jeremy A. Schmoll
  • Patent number: 8353311
    Abstract: An anti-flooding device (10) including a duct (12) for passage of a flow of liquid, and a limiter (14) inserted along the duct (12) for passage of liquid and defining a section for passage of the liquid that decreases progressively as the flowrate of liquid increases, with closing of the duct (12) once a given threshold flowrate has been reached. The limiter (14) has at least one male element (18) and at least one female element (20), which are mobile with respect to one another so that they slide into one another as the flowrate of liquid increases. Progressive insertion into one another of the male element (18) and the female element (20) defines the section of passage. The male element (18) and female element (20) are shaped with respect to one another so as to reduce the section of passage as the flowrate increases, with closing of the duct (12) for passage of liquid as soon as a given threshold flowrate is reached.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 15, 2013
    Assignee: Officine Rigamonti S.p.A.
    Inventors: Fausto Rigamonti, Nicola Musano
  • Patent number: 8327877
    Abstract: The present invention relates to a pressure reducing apparatus. A diaphragm made from an elastic material is provided in the interior of a body. The diaphragm includes a main body portion having a seat member that is capable of being seated on an inner tubular member of the body, a retaining portion disposed on an outer peripheral side of the main body portion and which is slidably displaceable with respect to the inner tubular member, and a skirt that is retained on a flange of the body. Additionally, by flexing of the skirt by means of an elastic force of a spring, the seat member thereof separates away from the inner tubular member.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: December 11, 2012
    Assignee: SMC Kabushiki Kaisha
    Inventors: Shinichi Ito, Michihiro Hanada
  • Patent number: 8276611
    Abstract: An in-line fluid flow control valve includes a housing defining an inlet chamber and an outlet chamber aligned along a outlet axis. The housing further defines a bore with a flow control device and an adjustment mechanism disposed therein for regulating a fluid flow rate. The flow control device defines a fluid passage interconnecting the inlet chamber and the outlet chamber. The plane and the outlet axis define an acute angle therebetween. The angled position of the bore relative to the outlet axis permits access to and adjustment of the flow control device, as well as replacement of the flow control device, without disconnecting any fittings attached to the inlet and the outlet of the control valve.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: October 2, 2012
    Assignee: BASF Corporation
    Inventors: John H. Swab, Matthew C. Dunlap, Thomas M. Suggs, Donald E. Weber
  • Patent number: 8262057
    Abstract: An apparatus for operating a device such as a self-closing internal valve is disclosed. The apparatus includes a housing assembly having an internal chamber, a fluid inlet in fluid communication with the internal chamber, and an actuator stem extending from the housing assembly. The actuator stem is moveable in response to the addition or removal of a fluid into or out of the internal chamber. To control the flow rate of a fluid into and out of the internal chamber, the apparatus includes a fluid control valve in fluid communication with the fluid inlet of the housing assembly, wherein the fluid control valve is adapted to restrict the rate of fluid flow into the internal chamber of the housing assembly.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: September 11, 2012
    Assignee: Fisher Controls International, LLC
    Inventors: Chun Lin, Yin Zhuang, Lu Cang, Fan Jian Jun
  • Patent number: 8235066
    Abstract: The disclosure relates to a safety device to be inserted in a pipe through which a fluid flows from an upstream side to a downstream side, this device comprising a tube offering the fluid a central flow path controlled by a central valve which closes in the event of excessive flow of this fluid, an elastically deformable annular shutter mounted on the external periphery of the tube, and retention clamps. According to the disclosure, each of the clamps has a tied end fastened to the periphery of the tube upstream of the annular shutter and can adopt, under the effect of a radial compression, a folded configuration in which its free end is turned towards this annular shutter.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: August 7, 2012
    Assignee: GDZ Suez
    Inventors: Amine Dalibey, Didier Mangon
  • Patent number: 8020582
    Abstract: An excess flow valve having a housing, a valve seat, a poppet and an adjusting ring. The adjusting ring lies within a bore in the housing and there is an opening through the housing permitting access to the adjustment ring from outside the bore of the housing. Rotation of the adjusting ring controls the maximum travel distance between the poppet and the valve seat. In an embodiment a travelling valve guide is rotatably mounted within the adjustment ring to change the maximum travel distance between the poppet and the valve seat. A spring may bias the poppet and the valve seat away from each other.
    Type: Grant
    Filed: January 27, 2007
    Date of Patent: September 20, 2011
    Assignee: Plainsman Manufacturing Inc.
    Inventors: Mark A. Lea-Wilson, Dan Brian F. Fajayan
  • Patent number: 7997293
    Abstract: According to various aspects, exemplary embodiments are provided of valve apparatus and combination filter valve assemblies. One exemplary embodiment provides a combination filter valve apparatus suitable for filtering objectionable particulate matter from a fluid and for selectively occluding a fluid flow opening. In this exemplary embodiment, the apparatus generally includes an outer member, a sealing member, and filtration media disposed generally between the outer member and the sealing member. The filtration media may be configured to generally support the sealing member for resilient movement relative to a fluid flow opening between open and closed positions. In the open position, the sealing member may be spaced apart from the fluid flow opening. In the closed position, the sealing member may be in sealing engagement with and substantially blocking the fluid flow opening, thereby inhibiting the ingress of fluid into or egress of fluid out of the fluid flow opening.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 16, 2011
    Assignee: Filtertek, Inc.
    Inventor: Ricky R. Ruschke
  • Publication number: 20100108160
    Abstract: The invention is directed to an excess flow valve having a feather gasket positioned near a valve seat. The excess flow valve also has a piston assembly with a first disc-shaped piston and a second disc-shaped piston. Each piston also has at least one orifice defined therein and has an upstream face and a downstream face. In one embodiment, the excess flow valve has a spring positioned in the housing against the downstream face of the second piston such that the spring exerts a force on the second piston in a direction opposite the general fluid flow direction. When flow forces acting on the piston assembly sufficiently exceed the spring force acting on the second piston, the piston assembly moves in the flow direction until a stop engages a valve seat to shut off fluid flow through the valve. The feather gasket reduces a bypass flow past the valve seat.
    Type: Application
    Filed: January 7, 2010
    Publication date: May 6, 2010
    Inventor: DONALD GARY EICHLER
  • Patent number: 7644726
    Abstract: A flow shut off valve for residential water line pressure includes a self cleaning valve element held in a housing having an inlet, an outlet section and an outlet adapter with a fluid passage connecting the inlet and the outlet adapter. The inlet and the outlet adapter include exterior threads for connection to a further item. The valve element is slidably mounted within a passage in a poppet guide and metering slot insert having one or more metering slots that allow variable fluid flow between the inlet and outlet adapter. A spring biases the valve element toward the inlet. Reduced back pressure at the outlet adapter drives the valve element into a closed position with a sealing surface against the valve seat to terminate flow. The flow shutoff valves are contemplated for integration with stop valves supplying water to employment with household appliances, sinks, toilets and the like.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: January 12, 2010
    Assignee: Kermit L. Achterman, & Associates, Inc.
    Inventor: Kermit L. Achterman
  • Publication number: 20090255592
    Abstract: A flow activated valve includes an outer body and a piston disposed in an inner cavity of the outer body. The flow activated valve also includes one or more fluid passage exits in the outer body and one or more piston fluid passages in the piston. The one or more fluid passage exits and the one or more piston fluid passages allow fluid flow out of the valve. The flow activated valve also includes a flow restriction member disposed in a piston inner cavity. In addition, the flow activated valve includes a shear member disposed in the outer body, and a bias member disposed in an inner cavity of the outer body. The flow activated valve further includes a position control member disposed in the piston and a sealing member.
    Type: Application
    Filed: October 16, 2008
    Publication date: October 15, 2009
    Applicant: MOHAWK ENERGY LTD.
    Inventors: Alessandro O. Caccialupi, Andrei G. Filippov
  • Patent number: 7591282
    Abstract: The valve comprises a housing defining a flow passage, an outer cylindrical wall, an inner cylindrical wall, and a valve seat. An annular cavity is formed between the outer cylindrical wall and the inner cylindrical wall. A valve member is slidably mounted within the housing. The valve member includes an annular skirt section extending in the downstream direction. A downstream-facing portion of the valve member comprises a sealing portion configured to selectively engage the valve seat. The valve member is movable between an upstream no flow position, a downstream shutoff position, and a normal flow position intermediate the no flow position and the shutoff position. A biasing element is disposed between the housing and the valve member so as to bias the valve member away from the valve seat.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: September 22, 2009
    Assignee: Kermit L. Achterman & Associates, Inc.
    Inventor: Kermit L. Achterman
  • Patent number: 7552743
    Abstract: A flow shut off valve for residential water line pressure includes a housing having an inlet, an outlet and a passage there between with a valve seat in the passage. A valve element is slidably mounted within the passage and includes a cavity open to the inlet and orifices partially restricting flow from the cavity to the passage. A spring biases the valve element toward the inlet. Reduced back pressure at the outlet drives the valve element into a closed position with a sealing surface against the valve seat to terminate flow. The restrictive orifices in the valve element extend from the cavity to the periphery of the valve element and, in a position toward the inlet, the restrictive orifices are closed by the housing to block communication between the inlet and the outlet. In an intermediate position, the orifices are open and the sealing surface is not against the valve seat. A motion damper may be employed to allow for start-up conditions on sprinkler systems and the like.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: June 30, 2009
    Assignee: Kermit L. Achterman & Associates, Inc.
    Inventor: Kermit L. Achterman
  • Patent number: 7503341
    Abstract: The present flow shutoff valve comprises a flow metering sleeve positioned within a flow passage. The sleeve and a housing of the valve define an annular space. The sleeve includes a flow metering aperture downstream of the annular space. A valve member is slidably mounted within the sleeve. The valve member is movable between a no flow position, a normal flow position and a shutoff position. The valve is self cleaning, so that it reduces the buildup of sediment within the valve.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: March 17, 2009
    Assignee: Kermit L. Achterman & Associates, Inc.
    Inventor: Kermit L. Achterman
  • Patent number: 7434595
    Abstract: A valve assembly includes an automatic excess flow shut-off mechanism for preventing excess flow between an inlet and an outlet of the assembly. The excess flow shut-off mechanism is adapted to automatically stop fluid flow through the valve assembly when the flow exceeds a specified flow rate. The excess flow shut-off mechanism prevents flow when it's set and allows flow when it's reset. The valve assembly also includes a manual set mechanism for setting the excess flow shut-off mechanism even when there is no excess flow. The valve assembly additionally includes a manual reset mechanism for resetting the shut-off mechanism and for allowing excess flow.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: October 14, 2008
    Assignee: Watts Water Technologies, Inc.
    Inventor: Craig Schmitt
  • Publication number: 20080006330
    Abstract: The present invention provides a throttle mechanism typically comprised of a nut, an orifice sleeve, a pressure spring and main body; wherein said nut and said orifice sleeve are possessed of an inlet individually at the top end, the diameter of the inlet of the orifice sleeve is smaller than the nut's, said both inlets construct to the intake pathway. The bottom rim of the orifice sleeve and an inner platform of the main body construct a ring outlet with the circular gap. Due to the structure including a nut, an orifice sleeve, and so on, the present invention has fewer numbers of parts, and simple structure features. By means of the different water pressure exerting on the orifice sleeve in the pipeline, the orifice area of discharging is changed so that the out-flowing water is kept in stable and consistent, the operation of it is smooth and reliable, by means of the preloading spring, the restriction flow can be controlled accurately and smoothly.
    Type: Application
    Filed: July 5, 2006
    Publication date: January 10, 2008
    Inventor: Huasong ZHOU
  • Patent number: 7273062
    Abstract: A shut-off valve for preventing the flow of liquid through a conduit is described herein. The valve includes a valve body which defines a fluid passage, a portion of which can be venturi-shaped. The valve also includes a flow barrier which has a dimension sufficient to block fluid flow through the passage. The flow barrier is movable between an open position which allows fluid flow through the passage, and a closed position which prevents such flow. A target for detecting liquid flow is pivotally attached to the flow barrier, and is exposed to liquid flow and gas flow when the flow barrier is in the open position. When liquid flow hits the target, it swings away from the direction of flow, thereby pivoting the flow barrier to the closed position. Related methods for preventing the flow of liquid through a conduit are also described.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: September 25, 2007
    Inventor: David Flint Stender, Jr.
  • Patent number: 7231937
    Abstract: An automatic shutoff valve is provided. The valve is preferably constructed of a check valve (which is normally shut) and a shutoff valve which is open during static, no-flow, operation. Upon initiation of flow, even a drip flow, the check valve opens, and the pressure differential from the inlet to the outlet causes a piston in the shutoff valve to move toward a shut position. As long as the pressure differential stops before the piston closes, the shutoff valve resets to the fully open position. However, if the shutoff valve shuts, it preferably must be manually reset.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: June 19, 2007
    Inventors: Ralph G. Greene, Nelson Edwards
  • Patent number: 7134434
    Abstract: A pressure support system having enhanced noise reduction and a valve assembly for use in pressure support system. The pressure support system includes a pressure generator having an inlet and an outlet. A first conduit defining a tortuous path is coupled between a gas source and the inlet of the pressure generator. A second conduit coupled to the outlet of the pressure generator delivers the flow of gas from the pressure generator to a patient. A valve assembly communicates gas from the second conduit to the first conduit to control the pressure or a rate of the flow of gas in the second conduit. By communicating gas from the second conduit to the first conduit, the noise associated with exhausting gas from the second conduit is muffled by the tortuous path of the first conduit.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: November 14, 2006
    Assignee: RIC Investments, LLC
    Inventors: Patrick W Truitt, Richard J Lordo, Joseph J Gesner
  • Patent number: 6988509
    Abstract: The riser line shutoff valve where oxygen flows into the valve from the inlet and through an orifice in the piston. This orifice creates differential pressure between the upstream and downstream side of the piston. When the differential pressure across the piston exceeds the spring load and friction between the piston and the valve body, the piston moves to the left and seats on the brass probe in the conical area of the piston, preventing the flow of oxygen. The valve will not open until the upstream pressure is removed. The base of the brass probe has holes, allowing oxygen to flow out of the outlet port when the valve is open. The probe is threaded into the probe base allowing for valve adjustment for proper operation. The spring simultaneously serves the functions of retaining the probe base and providing a piston load to keep the piston open until the critical flow rate is reached.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: January 24, 2006
    Assignee: Carleton Technologies, Inc.
    Inventors: Robert Frampton, William Siska, Glenn Maslowsky
  • Patent number: 6962165
    Abstract: A safety device for insertion into a pipeline (K) in which fluid circulates in an upstream (X?) and a downstream (X+) direction, comprises a tube (1) that provides the fluid with a central circulatory passage (CC) regulated by a central valve (3) that closes in the event of an excessive flow of this fluid. There is an annular valve closure member (4) which is elastically malleable, mounted to the external periphery of the tube (1), and provides the fluid with a peripheral circulatory passage which it selectively obstructs by subjecting a radial expansion in the event of an excessive flow of fluid.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: November 8, 2005
    Assignee: Gaz de France
    Inventors: Cyrille Delprat, David Leme, Lahouari Bouajaj, Sylvain Pineau
  • Patent number: 6953052
    Abstract: A fuel system shut-off valve includes a valve body bounding a fuel space, the valve body having an inlet opening and an outlet opening communicating with the fuel space. A piston assembly in the fuel space includes a main piston member that is movable relative to the valve body and an auxiliary piston member that is movable relative to the main piston member. The piston assembly either allows or prevents fuel flow through the valve from the inlet opening towards the outlet opening depending on the position of the auxiliary piston member. A force member urges the piston assembly towards the inlet opening.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: October 11, 2005
    Assignee: Wartsila Technology Oy AB
    Inventor: Kai Lehtonen
  • Patent number: 6892757
    Abstract: Hydraulic valve with a valve chest (1) provided with a substantially cylindrical internal chamber (5) which may be closed by a valve disc (9) which with its conical rim (9?) engages the facial rim of the internal chamber (5), an insert member (3) being arranged in a section of the internal chamber (5) and structured as a member of sprocket-like cross-section with circular gaps (3?) between teeth forming valve passages (4) with the internal wall of the chest, the valve disc stem (6) permeating the insert member (3) being a one-piece structure and provided with a safety nut (7).
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: May 17, 2005
    Inventor: Gisela Weber
  • Patent number: 6857440
    Abstract: In a method for a safety valve plus such a safety valve, the safety valve has the form of a valve body axially displaceable in a cavity with an inlet on either side of which are arranged outlets, whereby liquid and/or gas flow takes place from the inlet and past the valve body via a flow path to the outlets. On the valve body side, the flow path is provided with a structure that raises the friction in relation to the liquid and/or gas flow between the inlet and outlets.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: February 22, 2005
    Assignee: Lind Finance & Development AB
    Inventor: Björn Lind
  • Publication number: 20040221893
    Abstract: A flexible connector incorporates an excess flow shutoff at its inlet to prevent uncontrolled flow in the event of a failure such as rupture or separation of the connector. A shutoff sleeve moves in a body between an upstream, open position and a downstream, closed position. A spring biases the shutoff sleeve toward the open position. The sleeve includes a flow metering passage, and a pressure drop resulting from excess flow through the passage moves the sleeve to the closed position against a shutoff seat. A time delay is provided by a damping system including a variable volume damper chamber defined in part by a flexible bladder. Upstream pressure is communicated to the damper chamber by a restricted flow passage provided by metal to metal contact of a washer against a body surface.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 11, 2004
    Inventor: Dwight N. Johnson
  • Patent number: 6789561
    Abstract: An automatically operating valve for use for example in a forecourt fuel pump has a body (10) defining a flow passage (20) within which is formed a valve seat (22), the body having a weakened zone (16) around the flow passage (20) such that an impact on the body will fracture the body at the weakened zone. A valve member (30) is mounted for movement within the flow passage (20) and is engageable with the valve seat (22) to close the valve. A closing mechanism effects movement of the valve member (30) to its closed position in the event that the body (10) is fractured at the weakened zone. Further, the valve member (30) is configured to move to its closed position under the influence of excessive flow of liquid through the flow passage (20).
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: September 14, 2004
    Inventor: Graham William Osborne