With Mechanical Movement Between Actuator And Valve Patents (Class 251/58)
  • Patent number: 7934694
    Abstract: An actuator comprising a cylinder and a spring return piston provided with linkage means, in which one or more return springs are situated on the same side of the piston as the linkage means.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: May 3, 2011
    Assignee: Forac Limited
    Inventor: Alan Bunyard
  • Patent number: 7856333
    Abstract: The disclosure relates to a method for commissioning pneumatically operated actuators that are controlled by a positioner. To determine the drive type, a constant flow of pneumatic fluid is applied to the actuator during commissioning while a drive-specific characteristic curve of the fed back position is recorded over time. Then the measured characteristic curve is compared with a given specimen characteristic curve. The drive type is inferred from the level of difference or agreement between the drive-specific characteristic curve and the specimen characteristic curve.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: December 21, 2010
    Assignee: ABB AG
    Inventor: Wolfgang Scholz
  • Patent number: 7823752
    Abstract: A device for dispensing a heated liquid, such as a hot melt adhesive, which includes a dispenser body adapted to dispense the heated liquid, a solenoid valve, and a pneumatic section including a housing coupled between the solenoid valve and dispenser body. The pneumatic housing is formed from a thermally insulating material which may include a thermoplastic polymer such as polyphenylene sulfide (PPS) or a fluoroplastic polymer to reduce heat transfer from the dispenser body through the pneumatic housing thereby thermally insulating the solenoid valve.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: November 2, 2010
    Assignee: Nordson Corporation
    Inventor: John M. Riney
  • Publication number: 20100224806
    Abstract: A pressure-reducing valve is provided in which a diaphragm rod connected to a valve body of a valve mechanism is connected to a central part of a diaphragm having its peripheral edge part clamped between a body and a diaphragm cover, wherein the diaphragm (28) is formed from a disk-shaped rubber sheet for which the sheet thickness of at least its peripheral edge part is uniform in the natural state, and in a state in which the diaphragm cover (17) is fixed to the body (16) so that the peripheral edge part of the diaphragm (28) is compressively held between a collar portion (17b) of the diaphragm cover (17) and a clamping face (91) of the body (16), a portion having, of the gap between the collar portion (17b) and the clamping face (91), a minimum gap is positioned further inward in the radial direction of the diaphragm (28) than a portion having a maximum gap.
    Type: Application
    Filed: July 8, 2008
    Publication date: September 9, 2010
    Applicant: KEIHIN CORPORATION
    Inventors: Hiroaki Yamamoto, Yutaka Chiba, Yoshio Saito, Yoji Nakajima
  • Publication number: 20100224805
    Abstract: Hydraulic actuating device (1) for actuating a water evacuation mechanism (2), includes: an actuating unit (4) with plunger(s), a control unit (5) that can be integrated with the actuating unit, at least one three-way hydraulic valve (6) supplied by a water distribution system and controlled by the control unit (5), and at least one single-action hydraulic jack (3) supplied via the valve and ensuring the triggering of the water evacuation mechanism by raising a closing flap (56) or a plug.
    Type: Application
    Filed: January 23, 2007
    Publication date: September 9, 2010
    Applicant: SANITAIRE ACCESSOIRES SERVICES S.A.S.
    Inventor: Jean-Claude Oury
  • Publication number: 20100171053
    Abstract: A tap adapter comprises a tap head, a tap body and a plunger. The plunger is mounted within the body so as to be movable from a closed position to both a first open position and a second open position. Resilient means are arranged to return the plunger from either open position to said closed position. The adapter is arranged such that the return to the closed position from said first and second open positions takes different lengths of time.
    Type: Application
    Filed: August 3, 2007
    Publication date: July 8, 2010
    Applicant: Aqua-Smart Holdings Limited
    Inventors: Robert Williamson, Rob Collins
  • Publication number: 20100163764
    Abstract: An adaptor for a water delivery device to avoid water wastage by the provision of two durations of water flow, comprising a tap head, a tap body and a plunger, the plunger being slidably mounted within the body so as to be movable from a closed position to both a first open position and a second open position; resilient means being arranged to return the plunger from either open position to said closed position, the adapter being arranged such that the return to the closed position from said first and second open positions takes different lengths of time, and adjustment means arranged to adjust the ratio between the length of time for the plunger to return to the closed position from the first open position and the length of time for the plunger to return to the closed position from the second open position.
    Type: Application
    Filed: August 3, 2007
    Publication date: July 1, 2010
    Applicant: Aqua-Smart Holdings Limited
    Inventors: Rob Collins, Robert Williamson
  • Publication number: 20100138051
    Abstract: The present application relates to an arrangement for selectively providing a plurality of output forces, such as for example, a higher and a lower output force or a predetermined, time dependent output force. In one embodiment, a first piston assembly is moveable between a first and a second position and a second piston assembly moveable between a third and a fourth position. When the first piston assembly is in the first position, the second piston assembly is selectively movable between the third position and the fourth position. When the first piston assembly moves the second position, it moves the second piston assembly to the fourth position.
    Type: Application
    Filed: July 12, 2006
    Publication date: June 3, 2010
    Applicant: SWAGELOK COMPANY
    Inventor: William H. Glime
  • Patent number: 7712723
    Abstract: A valve actuator comprises a housing, a lever, and a positioning device.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: May 11, 2010
    Assignee: Fisher Controls International LLC
    Inventor: Jason G. Olberding
  • Patent number: 7694855
    Abstract: A dispenser includes an actuating section having a first moveable member and a hydraulic section coupled with the actuating section and having a second moveable member. The hydraulic section is adapted to dispense a liquid from an outlet therein and the actuating section is adapted to control dispensing of the liquid. An actuator assembly operatively couples the first moveable member with the second moveable such that the first moveable member is operative to move the second moveable member between open and closed positions for respectively starting and stopping flow of liquid from the outlet. The actuator assembly may include a pivoting lever arm having a first end operatively coupled with the first moveable member, a second end operatively coupled with the second moveable member and defining a fixed pivot point therebetween.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: April 13, 2010
    Assignee: Nordson Corporation
    Inventors: Christopher R Chastine, John M Riney, Laurence B Saidman
  • Patent number: 7677528
    Abstract: A controller comprises power transmitting means (11) for amplifying the force applied on the operating shaft (6) and transmitting to the valve rod (4); and a slow start means (12) for slowly moving the operating shaft (6) upward are arranged.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: March 16, 2010
    Assignee: Fujikin Incorporated
    Inventors: Tsutomu Shinohara, Michio Yamaji
  • Patent number: 7661650
    Abstract: A valve actuator comprises a housing, a lever, a collet, and a biasing device. The lever is disposed within the housing and is adapted to be operatively coupled to rotate the valve shaft. The collet is carried by the lever and adapted to couple the lever to the valve shaft. The biasing device comprising a spring operatively coupled to the collet to bias the lever into a predetermined position.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: February 16, 2010
    Assignee: Fisher Controls International LLC
    Inventors: Paul R. Dalluge, Paul A. Day
  • Publication number: 20090278064
    Abstract: A diaphragm controlled bypass valve includes a diaphragm valve portion and a needle valve portion. The diaphragm valve portion regulates pressurized gas supplied from a pump to determine whether or not to open or close a needle valve. The needle valve portion includes an inlet port, an outlet port and a flow pathway defined between the inlet and outlet ports. A needle pin is disposed within the flow pathway and is coupled to a diaphragm positioned within the diaphragm valve portion. When the diaphragm is displaced in response to changes in pressure, the needle valve pin is likewise displaced which opens and closes the flow pathway.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 12, 2009
    Applicant: TYCO VALVES & CONTROLS LP
    Inventors: John R. Grenaway, Mark K. Hamm, William Clinton Osteen
  • Publication number: 20090217734
    Abstract: A valve assembly includes a valve body having an inlet port and an outlet port, the valve body also having a valve chamber extending between the inlet port and the outlet port, a pair of seals each being located on opposing ends of the valve chamber; and a reciprocating piston extending into the valve chamber and movable between a closed position extending through the pair of seals and an open position extending only through one of the pair of seals, wherein the inlet port is fluidly connected with the outlet port when the piston is in the open position. A method of using the valve assembly is also disclosed.
    Type: Application
    Filed: April 2, 2008
    Publication date: September 3, 2009
    Applicant: Dionex Corporation
    Inventors: Khosro MOSHFEGH, Jeff S. Thompson
  • Publication number: 20090184272
    Abstract: A pneumatic valve with lockout for controlling the flow of a fluid includes a housing, a fluid flow passage extending through the housing between a fluid inlet and a fluid outlet, and a valve movable along an axis to open and close the flow passage. A pneumatic actuator is operable to move the valve to open and close the flow passage. A manual lockout device is actuable to selectively enable and actuation of disable the valve. The device includes a locking member movable to prevent the lockout device when the valve is disabled. A fitting on the housing to convey a pressurized gas to the pneumatic actuator is mounted to swivel about the housing for connection to an air source on any radial within 360°. The valve is compact, simple to connect in a system and safe.
    Type: Application
    Filed: March 31, 2009
    Publication date: July 23, 2009
    Inventor: Harry Clayton Nesbitt
  • Publication number: 20090152483
    Abstract: The present invention provides a valve actuator for a valve that includes a cylindrical body that is thermally nonconductive and configured to engage a valve stem. A cylindrical adjuster is positioned coaxially with the body. A shaft extends through the adjuster and the adjuster is axially movable between a first position and a second position such that when the adjuster is in the first position a first engaging means engages a second engaging means thereby fixing the position of the adjuster relative to the body. When the adjuster is in the second position the adjuster is radially movable relative to the body. A spring is aligned with the shaft and configured to bias the adjuster toward the first position such that the first engaging means engages the second engaging means thereby fixing the position of the adjuster relative to the body.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 18, 2009
    Applicant: Conbraco Industries, Inc.
    Inventor: Ralph Taggart Teague, JR.
  • Patent number: 7540467
    Abstract: An actuator assembly including an actuator housing assembly having a linear drive mechanism disposed at least partially therein. A linear variable differential transducer (LVDT) is coupled to the linear drive mechanism and configured to eliminate rotation of the linear drive mechanism and provide linear positioning of the linear drive mechanism. A valve shaft is coupled to the linear drive mechanism and in substantially linear alignment with the linear drive mechanism. A rotational coupler, in the form of a helical groove and reciprocating guide member, is formed to couple the linear drive mechanism to the valve shaft. The valve shaft is configured to allow for the linear displacement therein of the linear drive mechanism and thereby output a rotation moment via the rotational coupler to the valve shaft.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: June 2, 2009
    Assignee: Honeywell International Inc.
    Inventor: James S. Roundy
  • Publication number: 20090127484
    Abstract: A combined actuator provided with: a mobile element; a driver for displacing the mobile element; and a rheological control brake, which is mechanically coupled to the mobile element to adjust the displacement of the mobile element; the rheological control brake has: two contiguous adjustment chambers; a rheological fluid contained in the two adjustment chambers; a sliding piston, which tightly separates the two adjustment chambers and is mechanically connected to the mobile element; at least one external connection pipe, which reciprocally connects the two adjustment chambers; and a driving device which is coupled to the external connection pipe so as to apply a variable electromagnetic field to the rheological fluid contained in the external connection pipe for varying the viscosity of the rheological fluid between a minimum value and a maximum value.
    Type: Application
    Filed: November 12, 2008
    Publication date: May 21, 2009
    Inventors: Andrea Spaggiari, Eugenio Dragoni, Nazario Bellato, Michele Pecora, Federico Lancioni, Stefano Fornara, Andrea Baldassari
  • Publication number: 20090127482
    Abstract: There is disclosed an actuator for delivering a supplementary force to the piston of a shear ram in a blowout preventer (BOP), and a corresponding BOP. In one embodiment, a supplementary force actuator (12) is disclosed for use on a hydraulic ram (10), the actuator comprising an actuator body (30) connected to the hydraulic ram; first and second chambers (38, 36) located in the body, the chambers isolated from each other by an actuator piston (46); a rod (42) connected to an operating piston (24) of the hydraulic ram, passing through the first chamber and the actuator piston, and extending into at least a portion of the second chamber; wherein the actuator piston is releasably engageable to the rod by gripping means (48); and wherein the hydraulic ram is operated by a force from movement of the operating piston and by a supplementary force from movement of the actuator piston.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 21, 2009
    Inventor: Anthony Stephen Bamford
  • Patent number: 7506662
    Abstract: An improved one-way fluid valve construction is provided. A valve housing (102) includes one or more valve ports (108) and control ports (110). A control member (304) is disposed within the control port (110). The control member (304) is movable within the control port (110) between a first position and a second position. A control rod (302) can extend between the control member (304) and a portion of the valve port (108). A control rod coupling (402) interacts with the control member (304) to cause a rotational or pivotal movement the control rod (302) through a predetermined angular arc in response to movement of the control member (304). A sealing face (404) formed on a second portion of the control rod (302) advantageously forms a seal with an orifice (316) that separates an input side of the valve port (108) from an output side. The seal can be formed when the control rod (302) is in a control rod sealed position.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: March 24, 2009
    Inventor: Walter Tuymer
  • Publication number: 20090050332
    Abstract: A bearing mounted ball valve (10) comprises a housing (12) having a throughbore and a valve seat (16) and an apertured ball (18) mounted within the housing in continuous engagement with the valve seat. The apertured ball is rotatable by rotation means (20), about an axis of rotation, between a throughbore open position and a throughbore closed position. The bearing mounted ball valve further comprises bearing means (26) coupled between the apertured ball and the housing for constraining the rotation of the apertured ball about the axis of rotation between the throughbore open and the throughbore closed position. In the throughbore closed position, the bearing means is adapted to release the apertured ball from the axis of rotation to permit the apertured ball to float into a sealing engagement with the valve seat.
    Type: Application
    Filed: October 17, 2005
    Publication date: February 26, 2009
    Inventors: Gavin David Cowie, Jeffrey Charles Edwards
  • Publication number: 20090020167
    Abstract: A fluid control device or a device for coupling a rotary valve actuator to a rotary valve shaft comprises a housing, a lever, a threaded collet, and first and second stops carried by the housing. The lever comprises a cylindrical member containing the threaded collet. During operation, the first and second stops limit the rotation of the lever between first and second positions, thereby limiting rotation of the valve shaft. During assembly, the device further comprises a third stop that is removably carried by the housing. The third stop engages the lever in the first position simultaneously with the first stop, for example, thereby locking the lever against rotation. With the lever locked, a technician may apply generally any amount of torque to a draw nut disposed on the collet to tighten and/or loosen the collet onto the rotary valve shaft without rotating the lever.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 22, 2009
    Inventor: David J. Koester
  • Publication number: 20080289693
    Abstract: A diaphragm valve for use in an irrigation system is disclosed that is adapted to reduce the water hammer effect, reduce debris in a flow path through a valve seat, improve bleed operation and/or reduce manufacturing and materials costs.
    Type: Application
    Filed: May 21, 2007
    Publication date: November 27, 2008
    Applicant: RAIN BIRD CORPORATION
    Inventors: Kevin M. Irwin, Clint R. Haas
  • Publication number: 20080224073
    Abstract: The invention concerns a hydraulic valve arrangement (1) with several valve modules (2-6), each having a supply channel arrangement with a high-pressure channel (7) and a low-pressure channel (8), a working connection arrangement with at least one working connection (A, B), a directional valve arrangement (15, 16) between the supply channel arrangement and the working connection arrangement and a compensation arrangement (19, 28). It is endeavoured to improve the control possibilities. For this purpose, it is provided that in at least one valve module (3, 5) the compensation arrangement is a pre-compensation arrangement (19) and in at least one other valve module (4, 6) the compensation arrangement is a post-compensation arrangement (28).
    Type: Application
    Filed: December 14, 2007
    Publication date: September 18, 2008
    Applicant: Sauer-Danfoss ApS
    Inventors: Thorkild Christensen, Siegfried Zenker
  • Patent number: 7401759
    Abstract: The invention relates to the field of the submarine valve actuators, and specifically to those actuators, that in order to effect a standard valve closing operation are connected to an oleo system feeding an hydraulic cylinder (1), whose plunger (3), by a mechanical link, operates the valve and compresses a spring (8) which provides for the standard opening operation. Said actuators are provided with an input shaft (21) for connectin a ROV for valve opening and closing operations when there is a failure in the oleo system. The connection between the ROV-operated input shaft (21) and the mechanical link between the piston (3) and the spring (8) is carried out by a planetary gear reducer (15).
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: July 22, 2008
    Assignee: Biffi Italia S.R.L.
    Inventor: Giordano Alfieri
  • Patent number: 7390310
    Abstract: A locking assembly is provided to simply and effectively prevent any unintentional adjustment of the adjustable valve mechanism in a fluid flow control device, without compromising the function of the device. The locking assembly generally includes at least one gripping arm for frictionally engaging at least a portion of the adjustable valve mechanism, and an actuating mechanism for controlling the deployment and release of the gripping arm. The locking assembly prevents unintentional adjustments that can adversely affect the pressure settings of the fluid flow control device. In particular, the locking assembly prevents unintentional adjustment, such as may be caused by the presence of a strong external magnetic field. The locking assembly can be easily disengaged, such as through the application or removal of an external mechanical force, to allow a clinician to adjust the pressure settings of the fluid flow control device as necessary.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: June 24, 2008
    Assignee: Codman & Shurtleff, Inc.
    Inventors: Daniel McCusker, Alan J. Dextradeur, Rainuka Gupta, Carleton Bryan Southworth
  • Publication number: 20080116403
    Abstract: A valve arrangement includes a spool movable in first and second strokes. A first biasing member has a first spring constant and a first preload, and a second biasing member has a second spring constant lower than the first spring constant and a second preload higher than the first preload. The first biasing member and not the second biasing member biases the spool toward the center position through the entire first stroke and during movement of the spool from a center position to an intermediate position within the second stroke. The first and second biasing members act in series to bias the spool toward the center position during movement of the spool from the intermediate position to an end of the second stroke.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 22, 2008
    Inventors: William C. Shelbourn, Kyle D. Kaldor
  • Publication number: 20080099702
    Abstract: A valve actuator comprises a housing, a lever, a collet and a biasing device. The lever is disposed within the housing and is adapted to be operatively coupled to rotate the valve shaft. The collet is carried by the lever and adapted to couple the lever to the valve shaft. The biasing device comprising a spring operatively coupled to the collet to bias the lever into a predetermined position.
    Type: Application
    Filed: October 27, 2006
    Publication date: May 1, 2008
    Inventors: Paul R. Dalluge, Paul A. Day
  • Publication number: 20080023662
    Abstract: A multifunctional regulator provides a housing having an inlet passage joined with an outlet passage through a poppet valve. The housing has a control diaphragm separating the control chamber into a first volume and a second volume and depending on the differential pressure between the two volumes, the diaphragm will push open the poppet valve. Pressurizing and depressurizing valves join the first volume with the inlet and outlet passages, whereby, with an inlet pressure level within the inlet passage greater than an outlet pressure level within the outlet passage, and with the pressurizing valve admitting the inlet pressure level to the first volume, the diaphragm is displaced into the second volume thereby forcing the poppet valve to open and thereby raising the outlet pressure toward the inlet pressure with fluid flow from the inlet to outlet passages.
    Type: Application
    Filed: July 7, 2006
    Publication date: January 31, 2008
    Inventors: Robert H. Reinicke, Peter C. M. Chow
  • Patent number: 7303176
    Abstract: Force amplifying means 5 comprises a tapered member 41 extending vertically downward from the lower end of an operating rod 3, a disk member 42 provided at the upper end of a valve stem 16, and front and rear pivotal members 43, 44 arranged between the two members 41, 42 and opposed to each other with the tapered member 41 positioned therebetween, the pivotal members 43, 44 being pivotally movable about respective pivots 45, 46. Each of the pivotal members 43, 44 has a plate body 43a, 44a, an upper contact face 43b, 44b formed on an upper portion of the body and in bearing contact with a tapered face of the tapered member 41, and a lower contact face 43c, 44c formed on a lower portion of the body and bearing on the upper surface of the disk member 42. The lower contact face 43c, 44c of each pivotal member is in the form of a circular-arc cam face centered about a center line positioned away from the axis of the pivot 45, 46.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: December 4, 2007
    Assignee: Fujikin Incorporated
    Inventors: Ichiro Tokuda, Kenji Tsubota, Michio Yamaji, Tsutomu Shinohara
  • Patent number: 7300035
    Abstract: A valve actuator comprising a lower housing comprising a mounting spool that is operable to couple to a valve body. A rotating sleeve is disposed within the lower housing and coupled to a stem connector. A fixed sleeve in disposed within the lower housing and includes a first slot disposed therethrough. A second slot is disposed in the rotating sleeve, wherein at least one of the slots is a helical slot. An axle engages both the first slot and the second slot. A shaft is coupled to the axle and extends through a connector flange that is coupled to an upper end of the lower housing. A piston is coupled to the shaft and movably disposed within an upper housing that is coupled to the connector flange. Axial movement of the piston within the upper housing will result in rotational movement of the rotating sleeve.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: November 27, 2007
    Assignee: Cameron International Corporation
    Inventors: Albert S. Davis, John M. Saldivar, David R. Mefford, Frank J. Arriens, Daryl L Ard, Anthony Laitkep, Leonard Martinak, Larry Vyvial, Jim Mohrfield
  • Patent number: 7266891
    Abstract: The present invention is a method where a one-piece throttle valve is fastened to a throttle valve shaft in a first step. In another step, at least one elastic compensating element is placed onto the throttle valve. In another step, the elastic compensating element is pressed against the inner wall of the throttle valve housing by an expanding tool. In another step, the elastic compensating element pressed against the inner wall of the throttle valve housing is joined to the throttle valve.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: September 11, 2007
    Assignee: Siemens AG
    Inventor: Thomas Hannewald
  • Patent number: 7163194
    Abstract: An actuator (16) for a rotor valve (10). The actuator includes a rack (86) for driving a pinion gear (87) of the valve. The rack is moved between first and second positions by the action of a first piston (88). Movement of the first piston and rack is selectively restricted in one direction by the movement of a moveable stop (104) from a withdrawn position to an extended position, thereby defining a third position of the rack. The moveable stop may be driven by a second piston (102). The first and second pistons may be powered by a common compressed air supply (122). The cross-sectional area of the first piston may be at least 1.4 times the cross-sectional area of the second piston to ensure that the force exerted by the first piston is not sufficient to displace the moveable stop from the extended position when the second piston is open to the compressed air supply.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: January 16, 2007
    Assignee: General Electric Company
    Inventor: Muhammad Pervaiz
  • Patent number: 7156364
    Abstract: A valve assembly for controlling flow of cryogenic fluids is disclosed. In an embodiment, the valve assembly includes a valve housing and a valve member supported at the valve housing for movement between a valve opened and a valve closing position. A pneumatic cylinder is disposed laterally spaced from the valve member and thermally isolated with respect to cryogenic fluids controlled by the valve member. A lever operatively connects the pneumatic cylinder with the valve member and a linkage is pivotally connected with the lever at a position spaced from the valve member. The valve member is a needle valve member supported for axial movement at the housing.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: January 2, 2007
    Assignee: Linde Aktiengesellschaft
    Inventor: Rudolf Erwin Berghoff
  • Patent number: 6986499
    Abstract: A valve, actuator and control system that allows minimizing the size of the actuator and operation of the control system in a manual mode that automatically prevents accidental operation by pipeline pressure is disclosed. The actuator uses gas pressure from the pipeline to power the actuator. In the event gas pressure is unavailable, a pair of manual hand pumps are incorporated to allow operation of the actuator and valve.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: January 17, 2006
    Assignee: Cooper Cameron Corporation
    Inventors: Albert S. Davis, John M. Saldivar, David R. Mefford, Frank J. Arriens, Daryl L. Ard
  • Patent number: 6929237
    Abstract: The invention is therefore directed to a rotary valve actuating system coupled to a pipeline for a pressurized fluid, the actuating system being coupled to the rotary valve to selectively cause operation of the valve. The valve actuating system comprises at least two reservoirs having an amount of an operating liquid in a first portion being coupled to an external source of pressurized fluid in a second portion thereof. A slideable piston is positioned within each of the reservoirs to isolate the first and second portions, and upon application of pressure from the external pressurized fluid against the slideable piston, operating liquid is supplied to actuate the rotary valve. In this manner, the operating liquid is isolated from the external source of pressurized fluid, such as supplied from the pipeline.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: August 16, 2005
    Assignee: Flo-Tork, Inc.
    Inventor: James R. Porter
  • Patent number: 6892752
    Abstract: A pipeline isolating device for istallation into and occlusion of a pressurised liquid or fluid supply pipe comprising a substantially solid and deformable boot (1) wich is adapted to move between an expanded and an unexpanded state and a shaped plunger (2) adapted to move into and out of said boot (1) wherein the boot (1) has a hollow interior (3) with a displacement contour (6) adapted to receive and cooperate with said plunger (2) so as to cause said boot (1) to move between said expanded state when the plunger (2) is inserted into said hollow interior (3) of the boot (1) and said unexpanded state when said plunger (2) is withdrawn from the interior (3) of the boot (1).
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: May 17, 2005
    Assignees: Yarra Valley Water, E D Evans Holdings PTY LTD
    Inventors: Richard Burlock, Craig Evans
  • Patent number: 6883320
    Abstract: A servomechanism for a valve controlling engine intake flow via a cooler and a bypass uses a proportional solenoid operating a hydraulic valve to power a hydraulic actuator setting the position of the control valve. An engine sensor and electric controller provide input to the proportional solenoid, and feedback from the position of the control valve is applied to the hydraulic valve by a cam and spring applying a force in opposition to the proportional solenoid.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: April 26, 2005
    Assignee: G. W. Lisk Company, Inc.
    Inventor: Jeffrey A. Tyler
  • Patent number: 6883474
    Abstract: An electrohydraulic valve actuator assembly for an engine includes a movable engine valve, a movable spool valve, and a driving channel interconnecting the spool valve and the engine valve. The electrohydraulic valve actuator assembly includes an actuator operatively cooperating with the spool valve to position the spool valve to prevent and allow fluid flow in and out of the driving channel to position the engine valve. The electrohydraulic valve actuator assembly further includes a mechanical feedback interconnecting the engine valve and the spool valve to control the position of the spool valve.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: April 26, 2005
    Assignee: General Motors Corporation
    Inventor: Norman Kenneth Bucknor
  • Patent number: 6880568
    Abstract: A pressure relief system is provided to detect and abate an overpressure condition in a pressurized fluid disposed in a conduit. The system includes a valve assembly and an actuator configured to actuate the valve assembly to establish an overpressure path for the pressurized fluid. The system further includes a piston assembly coupled to the conduit, a pressure responsive member (preferably a collapsible buckling pin) configured to mechanically fail when an axially directed compressive force exceeds a threshold level, and a multi-port, two-position valve disposed between the piston assembly and the pressure responsive member. The multi-port, two-position valve includes a spool that moves from a first position to a second position upon failure of the pressure responsive member, thereby directing control fluid through the spool to the actuator assembly.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: April 19, 2005
    Assignee: Taylor Innovations, L.L.C.
    Inventor: Julian S. Taylor
  • Patent number: 6871833
    Abstract: The present invention includes a disc drive shocker having a fast valve which can be moved from a full on position to a full off position within a desired interval of time to impart a shock to a disc drive. The valve is connected to a valve actuator which moves the valve spool within the valve housing. The valve actuator is connected to the valve spool though a lever. The lever is pivotable about a fulcrum. The pivot point of the fulcrum is adjusted, away from center, such that the end of the lever connected to the valve spool moves more quickly than the end of the lever connected to the valve actuator.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: March 29, 2005
    Assignee: Seagate Technology LLC
    Inventors: Mark A. Zeh, Jacob D. Levine
  • Patent number: 6854478
    Abstract: A fluid control valve for a pipeline pig includes a main valve and a mechanism for operating the main valve. The main valve comprises a valve body communicated to a fluid pipe, a main valve core movably disposed in the inner chamber of the valve body, and a main valve stem connected to the main valve core. The operating mechanism includes a hydrocylinder, which comprises a piston disposed in the cylinder, and a piston rod connected to the piston. The piston rod is transmissibly connected with the main valve stem so as to drive the main valve core by the main valve stem. A valve device includes a pilot valve, positioned in the pipeline which communicates the fluid pipe with the hydrocylinder, and an operator for controlling the actuation of the pilot valve so as to enable the piston to move reciprocally by the pressure of fluid in the fluid pipe.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: February 15, 2005
    Inventor: Xiangwei Zeng
  • Patent number: 6840493
    Abstract: A valve actuator is provided in which a complementary set of pinions, each driven by a pair of racks, are located on opposite sides of the valve to be actuated. The racks are part of an annular bearing assembly and are coupled to one another through a hydraulic cylinder or some other displacement device. A pinion retaining sleeve is provided to shield the racks and pinions and prevents parts of the valve actuator from being thrown in operation. The piston retaining sleeve may include a maintenance aperture for installing or repairing a pinion and a second aperture for viewing the rotation of the pinion. The bearing assemblies each include a bearing housing and a bearing retainer that cooperate to shield the bearing assembly.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: January 11, 2005
    Inventors: Lemuel T. York, Allan S. Richardson, Beat Kuttel
  • Patent number: 6793194
    Abstract: An actuator for operation of a valve, said actuator comprising tubular housing, which accommodates therein a piston, mounted with possibility for reciprocating linear stroke motion, an operating rod, which is operatively coupled with the piston and is rotatable about the longitudinal axis upon reciprocating stroke motion of the piston and a cam follower arrangement for transferring the piston reciprocating linear stroke motion into rotation of the operating rod, The actuator is provided with at least two fixing rods for preventing rotation of the piston. The fixing rods are rigidly secured at one end wall of the cylinder. The fixing rods extend parallel to the longitudinal axis and enter into respective blind passages provided at the first piston end to allow the linear stroke motion. The actuator is provided with at least two additional fixing rods, to enable the linear stroke motion.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: September 21, 2004
    Assignee: BG Tech Ltd.
    Inventor: Joseph Grinberg
  • 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
  • Patent number: 6783114
    Abstract: An improved air outflow valve having a cable assembly that enhances its reliability. In a particular embodiment, the cable assembly couples the diaphragm to the control arm of the air outflow valve and includes a retainer and a cable. The retainer has a cavity to slidingly accept the end of the cable when the valve is operated in a manual mode. Thus, bending or kinking of the cable is substantially inhibited or prevented, resulting in improved valve reliability. The improved cable assembly also is available as a retrofit kit and a method of retrofitting an existing valve is also provided.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: August 31, 2004
    Assignee: Honeywell International, Inc.
    Inventors: Sewa S. Sandhu, Kenyon Kehl
  • Publication number: 20040159807
    Abstract: A piston system for a reciprocating compressor is adapted for high speed, high pressure unloading conditions by providing a dual stage piston assembly wherein the piston is adapted for absorbing and redistributing a portion of the load during the high pressure applications or high pressure portion of a cycle without reducing the efficiency of the system during normal loads. Pressure of up to 4000 psi can be handled without damage to the piston or other valve components. The valve plate is held in the closed position by a compression spring which is adapted to be engaged by a finger/driver upon reciprocation of the valve piston. The finger driver moves with the piston against the valve plate to open the valve on the plunger downstroke and move away from the valve on the plunger upstroke. A shock absorbing element is positioned in the plunger/finger assembly to absorb the shock of the driving downstroke, thereby reducing the shock of the finger against the valve plate.
    Type: Application
    Filed: February 19, 2003
    Publication date: August 19, 2004
    Inventors: Arthur L. Black, Gene M. Thompson
  • Publication number: 20040124383
    Abstract: The invention is therefore directed to a rotary valve actuating system coupled to a pipeline for a pressurized fluid, the actuating system being coupled to the rotary valve to selectively cause operation of the valve. The valve actuating system comprises at least two reservoirs having an amount of an operating liquid in a first portion being coupled to an external source of pressurized fluid in a second portion thereof. A slideable piston is positioned within each of the reservoirs to isolate the first and second portions, and upon application of pressure from the external pressurized fluid against the slideable piston, operating liquid is supplied to actuate the rotary valve. In this manner, the operating liquid is isolated from the external source of pressurized fluid, such as supplied from the pipeline.
    Type: Application
    Filed: June 3, 2003
    Publication date: July 1, 2004
    Applicant: Flo-Tork, Inc.
    Inventor: James R. Porter
  • Patent number: 6732996
    Abstract: A gas cylinder valve comprises a valve body (10) having a valve chamber (30), an inlet passage (28) and an outlet passage (34) therein. An obturating body (38) is movable relative to a valve seat (40) in the valve body. A valve stem (48) is connected to the obturating body for moving the latter between a closed position, wherein the obturating body sits on the valve seat so as to seal gas discharge through the valve seat, and an open position, wherein the obturating body is spaced from the valve seat so as to allow gas discharge from the gas cylinder through the valve seat. A first diaphragm member (50) forms a flexible wall of the valve chamber. It is mechanically connected to the valve stem, so that a reciprocating movement of the valve stem elastically deforms the first diaphragm member. The inlet passage is in direct pressure communication with the valve chamber, so that the valve chamber is under gas cylinder pressure when the valve is closed.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: May 11, 2004
    Assignee: Ceodeux Ultra Pure Equipment Technology S.A.
    Inventor: Paul Kremer
  • Publication number: 20040061084
    Abstract: A Valve actuator with integral amplifying means having multiple linkage arrangements able to amplify the force generated by an air signal acting on a flexible diaphragm, and to transmit this force amplified on to a lower compression spring and ultimately on to a sliding actuator stem.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 1, 2004
    Inventor: Hans D. Baumann