High Pressure Cut-off Patents (Class 137/461)
  • Patent number: 10610279
    Abstract: Apparatus and methods for regulating cryogenic treatments are disclosed which comprise devices and methods for delivering controlled treatment of a cryoablative agent. In one variation, such devices may generally comprise an elongate probe having a distal tip and a flexible length, at least one infusion lumen positioned through or along the elongate probe, wherein the infusion lumen defines one or more openings along its length, and a liner expandably enclosing the probe. An inflow reservoir or canister valve may be fluidly coupled with a reservoir or canister containing the cryoablative agent and a modulation control unit may also be fluidly coupled with the inflow reservoir or canister valve and in fluid communication with the at least one infusion lumen. Additionally, a warming element may also be thermally coupled with the reservoir or canister.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 7, 2020
    Assignee: Channel Medsystems, Inc.
    Inventors: Daniel R. Burnett, Ric Cote, William W. Malecki, Brian M. Neil, David Beaulieu, Benjamin D. Voiles, Vincent Lopresti
  • Patent number: 10578085
    Abstract: A system is provided. The system includes one or more of a first bellows assembly, which includes a first bellows block, a second bellows block, a first pumping bellow, and first and second seals. The first bellows assembly includes a master fluid inlet port configured to receive a fluid and route the fluid to a first coupling. The second bellows block includes a master fluid outlet port and configured to route the fluid in a pressurized state from a second coupling to the master fluid outlet port. The first pumping bellow includes first and second bellow ports, the first pumping bellow oriented between the first and second couplings and coupled to a pump configured to pressurize the fluid. The first seal is disposed between the first coupling and the first bellow port and the second seal is disposed between the second coupling and the second bellow port.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: March 3, 2020
    Inventor: Mark Lee Stang
  • Patent number: 10570712
    Abstract: Techniques for managing a hydraulic fluid pipeline pressure include measuring a fluid pressure of a hydrocarbon fluid circulating, from a wellbore by a pump positioned in the wellbore, through an above-ground hydrocarbon fluid pipeline network at a plurality of particular locations in the hydrocarbon fluid pipeline network to determine a plurality of measured process pressures; determining that at least half of the plurality of measured process pressures exceed a specified threshold value; and based on the determination, actuating at least one flow control device operable to control the flow of the hydrocarbon fluid in the wellbore to reduce a fluid pressure of the hydrocarbon fluid in the hydrocarbon fluid pipeline network.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: February 25, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Pedro Alejandro Mujica, Herman Roberto Cipriano
  • Patent number: 10268215
    Abstract: A system for providing a force on a main valve member includes a first sensing element adapted to couple to a portion of the main valve member. A first loading element may be directly or indirectly coupled to the first sensing element such that the first loading element provides a first force on the first sensing element. The first loading element is adapted to transfer the first force to the first sensing element and the main valve member. The system also includes a second sensing element to the first sensing element. A second loading element is coupled to the second sensing element and the first sensing element. The second loading element is adapted to provide a second force on the second sensing element to transfer the second force to the main valve member.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: April 23, 2019
    Assignee: TESCOM CORPORATION
    Inventors: Justin L. Masias, Eric J. Burgett
  • Patent number: 9896911
    Abstract: A subsea production field has a subsea fortified zone that includes equipment designed to contain high pressure. The subsea production field also has a zone rated at lower pressure that includes equipment that is not capable of containing high pressure. A subsea pressure protection system is provided in the subsea fortified zone. The subsea pressure protection system includes a high integrity pressure protection system (HIPPS), and a pipe bundle. By selecting an appropriate length of the pipe bundle, the location of the separation between the subsea fortified zone and the zone rated at lower pressure may be kept fixed at the outlet of the pipe bundle.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: February 20, 2018
    Assignee: Trendsetter Vulcan Offshore, Inc.
    Inventor: James V. Maher
  • Patent number: 9505503
    Abstract: Specific impulse and rocket engine efficiency can be improved by injecting reactants, e.g., a propellant combination or a monopropellant and a catalyst, into a plasma flow of a rocket engine. In some aspects, a catalyst or a propellant is carried by plasma formed by passing a flow of a feed gas through an electrical arc. In some aspects, reactants are combusted in supersonic plasma flow to generate combustion ionization in the plasma flow.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: November 29, 2016
    Assignee: Lockheed Martin Corporation
    Inventors: Larry D. Knauer, Edward A. Pierson, Vadim Khayms
  • Patent number: 9409762
    Abstract: Provided are nozzles useful for controllably transferring any fluid including without limitation liquids such as hydrocarbon fuels from a first reservoir to a second reservoir. Dispensing nozzles as provided herein have several advantages, including increased control by the technician who is transferring the fluids over the nozzle itself by virtue of greater physical control and less operator fatigue. In addition, a small amount of force applied to the dispensing lever results in a relatively large opening of the control valve mechanism. Further, when line pressure is zero or near zero, it is not possible for un-metered fluid leakage to occur, which provides cost advantages to large volume vendors of liquids such as hydrocarbon fuels which are dispensed on a routine basis, such as at airports. Safety is also greatly enhanced, since latent quantities of fuel cannot flow out from lines equipped with the nozzles provided when supply lines are not pressurized.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: August 9, 2016
    Assignee: SCHULTZ ENGINEERED PRODUCTS, INC.
    Inventors: Basil B. Tilling, Robert L Schultz, Jr., Alexander G. Murashko, Jr.
  • Patent number: 9352847
    Abstract: A pressure regulator valve arrangement may include first and second regulator valves for closing a fluid passage in the event of over-pressure. The valve members may each have pressure ports for sensing the pressure, and the ports may be located downstream of the valve members to minimize interaction between the valves.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: May 31, 2016
    Assignee: Flight Refuelling Limited
    Inventor: Christopher Mouskis
  • Publication number: 20150013785
    Abstract: A hydraulic valve assembly for controlling a clutch in a vehicle transmission. The valve assembly includes a housing with a first port for connection to a source of pressurized hydraulic fluid, a displaceable sealing piston disposed within the housing, a valve spring for displacing the sealing piston, a snap-spring having first and second equilibrium positions, and an overstroke spring. In the first equilibrium position a spring force displaces the sealing piston to uncover the first port to enable fluid flow through the valve, and in the second equilibrium position the valve spring displaces the sealing piston to block the first port to block fluid flow through the valve. Moving from the first equilibrium position to the second equilibrium position includes displacing the overstroke spring.
    Type: Application
    Filed: September 10, 2014
    Publication date: January 15, 2015
    Inventors: Vural Ari, William Brees
  • Patent number: 8899258
    Abstract: A drain valve includes an inlet plenum, a first orifice downstream from the inlet plenum, a second orifice downstream from the first orifice, and a fluid passage between the first and second orifices. A piston having a first position and a second position has a first surface area exposed to the fluid passage when the piston is in the first and second positions and a second surface area exposed to the inlet plenum when the piston is in the second position.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: December 2, 2014
    Assignee: Graham-White Manufacturing Company
    Inventor: William F. Ginder
  • Publication number: 20140261778
    Abstract: Embodiments of the invention provide a high integrity pressure protection system (HIPPS) manifold including a housing providing a flow path between a process fluid line and a sensor, a first ball valve positioned within the housing and selectively allowing and inhibiting flow through the flow path, and a second ball valve positioned within the housing and selectively allowing and inhibiting flow through the flow path.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventor: James Hamilton
  • Publication number: 20140083526
    Abstract: A slam-shut safety device includes a valve body, a valve disc, a reset pin, and a guide collar. The valve disc is disposed within the valve body and shiftable along a slam-shut axis between an open position and a closed second position. The reset pin is operatively coupled to the valve disc and shiftable along the slam-shut axis relative to the valve body between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. The guide collar includes a hollow cylindrical portion extending away from the valve disc at least partly over the reset pin and being slidably disposed in a guide bore of a slam shut body that is connected to the valve body and supporting the reset pin, thereby providing added structural integrity to the rest pin and valve disc.
    Type: Application
    Filed: September 27, 2013
    Publication date: March 27, 2014
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES INC.
    Inventors: Cristian-Tiberiu Moldovan, Michel Bouvry, Roman Alexandru-Vlad, Stanley D. Hall, David E. Woollums, Tung K. Nguyen
  • Publication number: 20140083515
    Abstract: A slam-shut safety device includes a valve body and defining a flow path, a valve disc mounted on a valve disc support is movable between an open first position spaced away from the valve seat and a closed second position seated against the valve seat. A reset pin is operatively coupled to the valve disc support and is shiftable between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. An anti-rotation assembly is carried by cooperating portions of the valve disc and the valve disc support, with the anti-rotation assembly comprising at least one protrusion and at least one receiving area sized to receive the protrusion, the anti-rotation assembly arranged to stop rotation of the valve disc relative to the valve disc support.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 27, 2014
    Applicant: Emerson Process Management Regulator Technologies, Inc.
    Inventors: Jeffrey M. Sanders, Tung K. Nguyen, Cristian-Tiberiu Moldovan, Roman Alexandru-VIad, Tiberiu Moldovan
  • Patent number: 8671972
    Abstract: An overpressure protection system provides for protection of a hydraulic system from elevated pressures. The system automatically stops flow to the system and prevents system pressure from exceeding a predetermined level. The system requires manual intervention to reopen flow, giving a worker the opportunity to resolve any system problems before system damage occurs.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: March 18, 2014
    Inventor: Mike Winn
  • Publication number: 20140000723
    Abstract: Described are pressure fuses or pressure breakers which regulate the pressure downstream from the device. When the fluid pressure exceeds the trip pressure, the pressure fuse or breaker will trip and protect other components downstream of the fuse or breaker. Also described are methods of regulating pressure downstream from a fluid source using such fuses or breakers.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 2, 2014
    Inventor: Laurence W. Bassett
  • Patent number: 8616230
    Abstract: A dual acting multi actuation gate valve is provided that includes a secondary actuation mechanism. The valve may include a body, a shaft, a movable portion disposed within the body and coupled to the shaft, wherein the movable portion is configured to allow fluid flow through the valve when in a first position and to prevent fluid flow through the valve when in a second position. The valve includes an actuator coupled to the shaft, wherein the actuator is configured to move the movable portion between the first position and the second position, a mechanical connection between the actuator and the shaft, wherein the mechanical connection is configured to fail in response to an internal pressure, wherein the failure of the mechanical connection maintains the movable portion in the second position. A method of operation and testing the valve are also provided.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: December 31, 2013
    Assignee: Cameron International Corporation
    Inventor: David Studer
  • Patent number: 8474480
    Abstract: A spool valve is formed from a spool having two adjacent lands of equal cross-sectional dimensions, and a third land having greater cross-sectional dimensions than the other two. The spool reciprocably moves through a bore formed in a housing, so as to open and close fluid communication between selected pairs of ports formed in the housing. The bore includes a first chamber which receives the third land of the spool and has no externally communicating port formed in its walls. The spool valve may be used as a control valve for the actuator of a system valve. As the spool valve begins to actuate, the third land becomes exposed to actuator pressure. The greater area of the third land serves to increase the force applied to the spool valve by the actuator pressure source, enhancing protection from unintended or malicious resetting of the spool.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: July 2, 2013
    Assignee: BS&B Safety Systems Limited
    Inventor: Gary W. Scantlin
  • Patent number: 8327874
    Abstract: A high integrity protection system (HIPS) for protection of a pipe downstream of a wellhead includes: an inlet connected to the wellhead; outlet connected to the downstream pipe; two sets of two series-connected surface safety valves (SSVs) in fluid communication with the inlet and outlet, the two sets being in parallel fluid flow relation to each other, either one or both of the sets of SSVs operable as a flowpath for fluids entering the inlet and passing through the outlet to the downstream pipe; two vent control valves (VCVs), each connected to piping intermediate one set of series-connected SSVs, the VCVs being in fluid communication with a vent line, whereby, upon opening of a VCV, process pressure between the two SSVs is vented; a signal-generating safety logic solver, in accordance with preprogrammed safety and operational protocols; and pressure sensing transmitters attached to piping upstream of the HIPS outlet.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: December 11, 2012
    Assignee: Saudi Arabian Oil Company
    Inventor: Patrick S. Flanders
  • Patent number: 8316878
    Abstract: A single chamber two-way servo-operated valve includes: a valve body presenting an inlet aperture, an outlet aperture, and an access; a cover to close the access of the valve body; a port dividing the valve body interior into an inlet section and an outlet section; a valving element including a disc for closing the port; and an actuating chamber at least partially defined by the cover. The disc and a flexible diaphragm are connected to the valving element. The disc of the valving element includes a rigid central core which is at least partially covered by a rubber layer adhering to the central core. The rubber layer extends from the edge of the disc to form the flexible diaphragm.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: November 27, 2012
    Inventor: Alberto Lodolo
  • Publication number: 20120261005
    Abstract: A cam assembly for use in a slam-shut safety valve includes a cam having an elongated first cam arm, and the cam is pivotable about a rotational axis. The cam assembly also includes a torsional spring having a pair of stationary outer arms and a pair of pivotable inner arms, wherein the pair of stationary inner arms is coupled to a portion of the first cam arm. The pair of inner arms is adapted to act on the first cam arm to bias the cam into a position that allows the cam to be relatched in a valve rearming process. The pair of inner arms is symmetrically disposed about the first cam arm to prevent lateral displacement of the cam.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 18, 2012
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Theodor Cojocaru, Adrian Valean, Roman Alexandru-Vlad
  • Patent number: 8051875
    Abstract: A protection apparatus detects and reduces overpressure in a fluid pipeline. First and second pipeline valves are connected in series along the pipeline and are independently switchable between open and closed positions. A pressure transducer determines the fluid pressure in the pipeline at a point intermediate the first and second pipeline valves. A bypass line has a first end connected to the pipeline between the input end and the first pipeline valve and a second end connected to the pipeline between the first and second pipeline valves. A bypass valve is connected along the bypass line. A vent line is connected to the bypass line between the bypass valve and the second end of the bypass line. A vent valve is connected along the vent line.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: November 8, 2011
    Assignee: Vetco Gray Controls Limited
    Inventor: Jeremy Paul Lawrence Edwards
  • Patent number: 7997947
    Abstract: System of a hydrocarbon transfer buoy and a vessel, the buoy having a length of at least 50 m and a length-to-width ratio of at least 10:1, and including a submerged buoyancy member having a length of at least 30 m and being situated at a depth of at least 10 m below water level, another support frame protecting above water level being connected to the top of the buoyancy member and carrying a support deck and a mooring buoy connector for attaching to a mooring arm connector of the vessel, which mooring arm connector is situated on an arm projecting outboard from the vessel's hull, the buoy being anchored to the sea bed via anchor lines which extend at an angle to a vertical direction, at least one hydrocarbon riser being attached to the buoy. The buoyancy member being connected to the sea bed via at least one substantially vertical taut tendon.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: August 16, 2011
    Assignee: Single Buoy Moorings Inc.
    Inventors: Jack Pollack, David Lewis Hankin
  • Publication number: 20100218963
    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: Application
    Filed: April 5, 2006
    Publication date: September 2, 2010
    Applicant: RICO-SICHERHEIT STECHNIK AG
    Inventor: Jurg Zellweger
  • Patent number: 7621702
    Abstract: A timing element for a lubricant supply system is capable of using pneumatics for the time of delivery of lubricant for a preset duration. In one example, the timing element has a cavity having an entrance and an exit, a first piston and a second piston. The first piston and the second piston are disposed in the cavity. The first piston is coupled to the second piston in such that compressed air in the entrance of the cavity is capable of moving the second piston and closing the exit. A pneumatic timing element may be incorporated into a dosing unit that is capable of supplying an amount of lubricant in a mist to a plunger bushing of a machine tool without. The duration of the dosing may be controlled solely by pneumatics and may prevent excess pooling of lubricant in bore holes by shutting off lubricant delivery at a preset time.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: November 24, 2009
    Assignee: Airbus Deutschland GmbH
    Inventors: Wolfgang Ende, Harald Schueler
  • Publication number: 20090264033
    Abstract: System of a hydrocarbon transfer buoy and a vessel, the buoy having a length of at least 50 m and a length-to-width ratio of at least 10:1, and including a submerged buoyancy member having a length of at least 30 m and being situated at a depth of at least 10 m below water level, another support frame protecting above water level being connected to the top of the buoyancy member and carrying a support deck and a mooring buoy connector for attaching to a mooring arm connector of the vessel, which mooring arm connector is situated on an arm projecting outboard from the vessel's hull, the buoy being anchored to the sea bed via anchor lines which extend at an angle to a vertical direction, at least one hydrocarbon riser being attached to the buoy. The buoyancy member being connected to the sea bed via at least one substantially vertical taut tendon.
    Type: Application
    Filed: July 27, 2007
    Publication date: October 22, 2009
    Applicant: SINGLE BUOY MOORINGS INC.
    Inventors: Jack Pollack, David Lewis Hankin
  • Publication number: 20080289700
    Abstract: The present invention comprises, in one embodiment, a compression safety valve apparatus adapted to engagingly connect to an existing gas cylinder valve. In one embodiment, the present invention comprises a housing base having a first bore, a rupture disc holding means having a second bore, at least one rupture disk, a piston having at least a third bore, a spring, and an outer housing cylinder having a forth bore, the first bore, the second bore and the third bore all being in gas flow communication with the compressed content of the tank. In operation, for example, during an over-pressurization event occurs, the extreme force of the escaping gas places a force on the bottom surface of the present invention's rupture disc assembly, so that the piston's beveled surface substantially mechanically engages the outer housing's upper ceiling. This mechanical engagement allows gas to continue to escape from the tank through one or more bleeder bores and a gap.
    Type: Application
    Filed: May 27, 2008
    Publication date: November 27, 2008
    Inventor: Levi D. Masingale
  • Publication number: 20080257421
    Abstract: The present invention provides an integral cantilever monitoring device for a regulator having a positionable vent port that may be disposed proximate the lowest point of the monitoring device to allow drainage of liquids accumulating within the monitoring device due to humidity and precipitation. The monitoring device may also include a connection module allowing the monitoring device to be rotated independently of the actuator and valve body of the regulator to accommodate varying installation environments. The connection module may further include an inlet port for connection to a downstream pressure feedback line when the regulator valve body and connection module portions of a primary downstream pressure feedback passage are out of alignment due to rotation of the monitoring device.
    Type: Application
    Filed: April 17, 2008
    Publication date: October 23, 2008
    Applicant: FISHER CONTROLS INTERNATIONAL LLC
    Inventor: Seth Kranz
  • Publication number: 20080190491
    Abstract: The invention relates to a protection device which defines a through hole (21) for the passage of a fluid which may be under overpressure conditions. In addition, the inventive device comprises: a stop plug (26) which can move between an open position and a position in which a first section of the hole (21) is sealed; a stop valve (28) which can move between an open position and a position in which a second section of the hole (21) is sealed; and means (22, 23, 27) for triggering both the movement of the stop plug (26) and the movement of the valve (28) from the open position to the sealing position in response to an overpressure (P2) in the hole (21). The invention is particularly suitable for self-contained equipment used to supply electrical power by means of a fuel cell.
    Type: Application
    Filed: March 24, 2006
    Publication date: August 14, 2008
    Applicant: STAUBLI FAVERGES
    Inventors: Alain-Christophe Tiberghien, Andre Charles Pavan
  • Patent number: 7246634
    Abstract: A fitting for connection to a pipe includes a sleeve, in which a body is axially displaced along a sleeve axis, whereby the body has a drill for drilling into the pipe and/or a valve body of a valve. The fitting also includes a branch sleeve, located in particular on the sleeve and to which a branch line can be connected. The fitting is easily constructed in such a way that safety requirements are reliably met and such that a connection to a branch line can be easily established if necessary. According to another aspect of the fitting, a locking device which includes an actuating element is located in the branch sleeve, in such a way that the locking device is actuated by means of the axially displaceable body in the sleeve.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: July 24, 2007
    Assignee: Friatec Aktiengesellschaft
    Inventors: Fabian Maier, Wolfgang Sichler
  • Patent number: 7025083
    Abstract: A quick closing shut-off valve includes an inlet, an outlet and a passage there between. A closing element blocks the passage when in the closed position. The closing element is interconnected to a piston via a pull rod. The piston is positioned within a working chamber that communicates with the valve outlet. A safety valve also communicates with the working chamber and is positioned above the piston. As a result, when the pressure within the tank, and thus in the working chamber, reaches a maximum permissible pressure, the safety valve opens and the pressure above the piston decreases. The piston rises as a result and pulls the closing element via the pull rod into the closed position so that the valve is closed.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: April 11, 2006
    Assignee: Chart Inc.
    Inventors: Vaclav Chrz, Gerd Kirchgassner, Petr Zaruba
  • Patent number: 6880567
    Abstract: An over-pressure protection system having a conduit section extending between a pressure reduction valve and a low-pressure fluid handling system, a shut-off valve provided with an actuator arranged in the conduit section, pressure sensors arranged one on either side of the shut-off valve in the conduit section, a safety control system that communicates with the actuator and the pressure sensors which produces a signal when it detects a high pressure in the conduit section, and a self-diagnostic system for checking the shut-off valve and the pressure sensors that communicates with the actuator, the pressure sensors and the safety control system, which self-diagnostic system produces a signal when it detects a failure in either the shut-off valve or the pressure sensors or both.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: April 19, 2005
    Assignee: Shell Oil Company
    Inventors: Theodorus Cornelis Klaver, Mark Pettitt
  • Patent number: 6834666
    Abstract: The invention provides an apparatus for outputting compressed air in a compressor to a plurality of pneumatic tools at a plurality of pressures. The apparatus includes: an air tank storing compressed air compressed by the compressor at a high pressure; a pressure adjusting portion connected to said air tank and adjusting a pressure value of the compressed air in a region from the high pressure to zero; a pressure outputting portion connected to a secondary side of said pressure adjusting portion and outputting the adjusted compressed air to at least one of a first pneumatic tool driven at a first pressure and a second pneumatic tool driven at a second pressure. The first pressure is larger than the second pressure, and the adjusted compressed air is not output to the second pneumatic tool at the first pressure.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: December 28, 2004
    Assignee: Max Co., Ltd.
    Inventors: Keijiro Murayama, Katsuhiko Murayama, Hiroshi Hanagasaki, Kazuhiko Kuraguchi, Hajime Takemura
  • Patent number: 6651686
    Abstract: An actuator system for a system valve exposable to a source of system pressure. A piston within a sensing vessel is caused to move longitudinally from a first position to a second position in response to a designated system pressure. A first piston stem carried by the piston is mechanically coupled to an actuator control valve, which is interposed in a fluid path between an actuator and a source of actuator pressure. Movement of the piston from its first to second position causes the coupled actuator control valve to block the fluid path linking the actuator and its pressure source, thereby causing a predetermined change in pressure at the actuator. As a result, the actuator shifts from its unactuated to its actuated state, thereby causing the system valve to shift from a first system valve position to a second system valve position.
    Type: Grant
    Filed: September 9, 2001
    Date of Patent: November 25, 2003
    Inventors: Gary W. Scantlin, Charles P. Cravens
  • Publication number: 20030047214
    Abstract: An actuator system for a system valve exposable to a source of system pressure. A piston within a sensing vessel is caused to move longitudinally from a first position to a second position in response to a designated system pressure. A first piston stem carried by the piston is mechanically coupled to an actuator control valve, which is interposed in a fluid path between an actuator and a source of actuator pressure. Movement of the piston from its first to second position causes the coupled actuator control valve to block the fluid path linking the actuator and its pressure source, thereby causing a predetermined change in pressure at the actuator. As a result, the actuator shifts from its unactuated to its actuated state, thereby causing the system valve to shift from a first system valve position to a second system valve position.
    Type: Application
    Filed: September 9, 2001
    Publication date: March 13, 2003
    Inventors: Gary W. Scantlin, Charles P. Cravens
  • Patent number: 6484742
    Abstract: A cartridge assembly for a valve is disclosed. The cartridge assembly includes a cartridge containing an activation component. The cartridge and activation component are configured to be replaceable as a unit. The activation component prevents the valve from either opening or closing until either a predetermined pressure is exerted on the valve or a predetermined temperature is experienced by the activation component. The cartridge may include any of a variety of activation component types, such as buckling pins, tensile pins, shear pins, springs, or fusible alloys, either individually or in combination to control the valve opening or closing.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: November 26, 2002
    Assignee: BS & B Safety Systems, Inc.
    Inventors: Geof Brazier, Arthur Dubbeldam, Peter Dubbeldam
  • Patent number: 6103079
    Abstract: An anti-microleakage apparatus is used in a sputtering deposition equipment. A metallic object, such as a wafer, is put in a process chamber. A cryo-pump is used to vacuumed the process chamber. A heater to heat up the process chamber to allow a thermal reaction. The heater is movable and is coupled to an inner bellows line, which allows a low pressure gas can be flushed into the process chamber. The anti-microleakage apparatus is formed on the inner bellows line by wrapping the inner bellows line with an outer bellows line. A higher pressure is created between the inner bellows line and the outer bellow line by filling in a gas. A pressure meter is coupled to the outer bellows line so as to monitor the actual pressure of the higher pressure. When microleakage occurs, the information cab obtained by the pressure meter.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: August 15, 2000
    Assignee: United Semiconductor Corp.
    Inventor: Ching-I Kuo
  • Patent number: 5906219
    Abstract: A pressure sensitive valve 10 comprises a valve body 12 defining a bore 14, an inlet port 16 and an outlet port 18. The inlet port 16 is in fluid communication with the outlet port 18 and defines a fluid flow path 20. The fluid flow path 20 is in communication with the bore 14. A reverse buckling member 22 extends at least partially across the bore 14, the member 22 being adapted to reverse its conformation when a set pressure has been exceeded. The valve 10 includes means for actuating inversion of the reverse buckling member 22 when the set pressure has been exceeded. The valve 10 also includes means for sealing the reverse buckling member 22 from the fluid flow path 20.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: May 25, 1999
    Assignee: Pressure Wise Limited
    Inventor: Kieron John Lavery
  • Patent number: 5810057
    Abstract: A method and apparatus for preventing over-pressurization of vessel during filling with a fluid where temperature of the vessel would cause the fluid to flash or rapidly expand on contact. A shut off device is placed in a conduit between the fluid source and the vessel being filled, the shut off device including a flow control piston that is held in position to permit fluid flow. Fluid pressure from the displacement space in the vessel is provided on both end of the piston. When a condition of over-pressurization occurs in the vessel a rupture disc associated with one end of the piston fails and causes a depressurization on that end of the piston causing it to move to a position where further filling of the vessel is prevented. The piston is positioned by a buckling pin and can be reset after over-pressurization of the vessel is connected and filling can resume.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: September 22, 1998
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Martin Alfred Westman
  • Patent number: 5752544
    Abstract: Each gas expansion station of a distribution network fed with gas in accordance with the invention comprises at least one regulator-expander provided with a valve member disposed on a main duct, a pilot valve, a safety valve provided with a valve member disposed in the main duct, and a differential member co-operating with the pilot valve and the safety valve which is disposed upstream from the regulator-expander to close the safety valve automatically under the control of the pilot valve in the event of the downstream pressure in the main duct downstream from the expansion station concerned exceeding a predetermined threshold value, and to operate automatically, after the downstream pressure has been restored to below the predetermined threshold value, either to reopen the safety valve if the regulator-expander of the expansion station concerned is not itself giving rise to a leak at its valve member, or else to keep the safety valve closed if the regulator-expander is not itself providing gastight sealing a
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: May 19, 1998
    Assignee: Gaz de France
    Inventor: Fourmont Yves
  • Patent number: 5323799
    Abstract: A mechanical pressure relief system for a pressurized operating system which is suitable for high purity applications. The pressure relief system utilizes a mechanical logic switch, operable at a set point pressure, in conjunction with a pressurized actuating fluid, completely separated from the processing fluid. The system further utilizes shuttle valves to provide an additional degree of safety, with the minimization of emission of potentially highly hazardous gases, when used in the pressure relief system to prevent further inflow and outflow of processing fluid. Diversion elements are activated, with the pressure logic switch at preselected pressures, for ingress into the system of an actuating fluid. The actuating fluid serves to open venting passageways and to close processing fluid passageways until excessive pressure is relieved. When normal pressure is attained, the pressure logic switch reverses with closing of venting passageways and opening of processing fluid passageways.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: June 28, 1994
    Inventor: Rudolf Pengler
  • Patent number: 5240034
    Abstract: A safety and automatic stop device for interrupting the flow of gaseous fluid along a main duct by tripping a safety valve member including a closing actuator for closing the safety valve member and an opening actuator for opening the safety valve member. A closing control module cooperates with a pressure-measuring housing to deliver an on/off pneumatic signal to the closing actuator as a function of the value of the pressure of a gaseous fluid to be controlled relative to at least one reference pressure determined by the pressure-measuring housing. A manual control element is used to apply an on/off pneumatic signal of predetermined value to the opening actuator and for selectively resetting the safety valve member. The safety and automatic stop device of the present invention is particularly adapted for application to a buried gas expansion station.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: August 31, 1993
    Assignee: Gaz de France
    Inventor: Jean-Philippe Cornil
  • Patent number: 5209253
    Abstract: A low gas pressure emergency shutdown valve forms part of a valve body having a flow passageway interposed in a gas supply line and forming a gas pressure regulator having a diaphragm/spring responsive poppet valve and a companion diaphragm responsive shutoff valve in the upstream end portion of the valve body maintained open by a pin bearing against the shutoff valve stem. Downstream fluid pressure, in response to a predetermined pressure limit in a flow control chamber, biases the diaphragm in a pin collapsing direction and moves the shutoff valve to a flow passageway closed position.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: May 11, 1993
    Inventor: Julian S. Taylor
  • Patent number: 5146942
    Abstract: A low fluid pressure emergency shutdown valve is formed by a valve body having a flow passageway interposed in a gas supply line downstream from a pressure regulator. A diaphragm responsive valve in the valve body is maintained open by a pin interposed between the valve stem and the downstream end portion of the valve body. Upstream fluid pressure, in response to a pressure regulator failing in the open position, above a predetermined limit biases the diaphragm downstream to collapse the pin and move the valve to a flow passageway closed position.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: September 15, 1992
    Inventor: Julian S. Taylor
  • Patent number: 5113899
    Abstract: In a check valve with a valve opening device, a check valve member (32) inserted into a check valve chamber (21) formed in a valve box (20) is resiliently urged for valve closing by means of a check spring (33) as well as the check valve member (32) is manipulated for valve opening through a manipulation lever (45), an actuator shaft (43) and a valve opening member (36) in order. The valve opening member (36) is adapted to be held at a valve opening position (F) by means of a valve opened state holding means (38). The valve opened state holding means (38) is arranged in both the valve opening member (36) and the valve box (20). A manipulation lever return spring (46) is disposed in a manipulation force transmitting system from the manipulation lever (45) to the valve box (20) through the actuator shaft (43).
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: May 19, 1992
    Assignee: Kabushiki Kaisha Kosmek
    Inventor: Keitaro Yonezawa
  • Patent number: 5067511
    Abstract: An emergency shutoff valve for closing the upstream end portion of a high pressure fluid conductor in the event of unintentional closing the downstream end portion of the conductor is formed by a valve body interposed in the upstream end portion of the high pressure fluid conductor. The valve body contains a valve seat and a normally open valve for seating on the seat and interrupting fluid flow through the valve body in response to fluid pressure above a predetermined value in the conductor. The valve includes a stem slidably supported by and projecting, at one end portion, outwardly of the body. A top plate is secured to the body by posts in axial spaced relation with respect to the valve stem for supporting a pressure collapsible rod-like pin axially interposed between the top plate and the valve stem.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: November 26, 1991
    Inventor: Julian S. Taylor
  • Patent number: 5036666
    Abstract: The bleed valve (22) especially for a hydraulic brake circuit, comprises a fluid reservoir (20), a hydraulic motor (26) and a mechanism for putting the fluid under pressure (24), and has a first port (42) connected to the motor (26) and to the mechanism (24) by way of a first conduit (62) and a second port (54) connected by way of a second conduit (60) to the reservoir (20) which is likewise connected to the inlet of the mechanism (24) by way of a third conduit (64), the first and second conduits (60,62) communicating with one another by way of the valve (22) during the initial bleeding phase of the hydraulic circuit, and no longer communicating from the moment when the fluid is first put under pressure. The valve (22) comprises a piston (36) capable of sliding in a bore (32,34) and keeping the shutter (44,42) of the valve open during the bleeding phase counter to a compressed spring (46 ).
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: August 6, 1991
    Assignee: Bendix Europe Services Techniques
    Inventor: Joel Vasselet
  • Patent number: 4889150
    Abstract: A pressure control for a shut-off valve, preferably an earthquake sensitive shut-off valve, and a control for closing the valve in response to regulated pressure failure in the pressure supply of gas or the like thereto, and including a meter means or the like upstream, the control sensing pressures both upstream and downstream for its operation, for protecting downstream appliances and apparatus.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: December 26, 1989
    Assignee: Safe-T-Quake Corporation
    Inventors: Hershall E. Lloyd, Monte E. Lloyd
  • Patent number: 4768539
    Abstract: A surface pipeline safety valve having a tubular member telescopically movable in the housing for controlling the movement of a valve closure member, a rod piston and cylinder assembly contacting and moving the tubular member in response to pressure in the bore of the housing in which the second side of the assembly is in communication with the atmosphere. High and low pressure responsive mechanisms for closing the valve. Seals in the assembly and high and low pressure responsive mechanisms are replaceable from the exterior of the housing.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: September 6, 1988
    Assignee: Camco, Incorporated
    Inventor: Ronald E. Pringle
  • Patent number: 4727903
    Abstract: An excess pressure and/or excess flow/temperature shutoff valve comprising a valve housing having an axial bore therethrough with inlet and outlet ends, a portion of the bore being enlarged to form a valve chamber, and a spool movable in the valve chamber and having a sealing fit with the walls of the chamber. In the event of an upstream pressure increase of predetermined magnitude, the spool is adapted to move from an open position in which it permits flow of fluid through the bore to a position wherein additional spool area is exposed to the upstream fluid pressure, whereupon the spool is adapted to move further downstream to a shut off position for blocking the flow of fluid through the bore. The valve may be optionally equipped to shut off the flow of fluid in the event of a downstream pressure decrease as a result of excess leakage and/or an increase in fluid temperature in excess of a predetermined value.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: March 1, 1988
    Assignee: Malcolm B. Sturgis
    Inventors: Malcolm B. Sturgis, Richard E. Hoffman
  • Patent number: 4597409
    Abstract: The high pressure of a gas transport network must be reduced before the gas is admitted to a distribution network to which consumers, e.g. household appliances are connected.This reduction is carried out by a gas pressure control installation. If this installation fails, conduit failure, appliance failure, explosion and fire may occur.A known safety device has a closing spring, which closes a valve if the gas pressure unacceptably rises which causes release of the spring by the gas pressure. The movement releasing the spring is influenced by friction which may have an uncertain value. The invention eliminates friction in that the reduced gas pressure acts on the valve via spring loaded membranes, namely a measuring membrane and an actuating membrane.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: July 1, 1986
    Assignee: Beta B.V.
    Inventor: Adrianus M. J. Bruin