Spring Patents (Class 251/176)
  • Patent number: 11391380
    Abstract: A water outlet valve assembly and a humidifier including the water outlet valve assembly are provided. The water outlet valve assembly is disposed at a water outlet of a water tank and includes a body and a pressure limiting portion. The body includes a housing and a valve core assembly. A flow passage is formed in the housing. The valve core assembly is capable of blocking the flow passage. The pressure limiting portion is disposed on the valve core assembly and applies a weight of the pressure limiting portion to the valve core assembly, and the pressure limiting portion provides the valve core assembly with a downward pre-tightening force, thus allowing the valve core assembly to block the flow passage.
    Type: Grant
    Filed: December 22, 2018
    Date of Patent: July 19, 2022
    Assignee: Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Zhongping Huang, Jianfei Hou, Jinbao Zhou, Jianhua Zhang, Xianle Mo, Guoliang Li
  • Patent number: 11067177
    Abstract: Valves having a sprung gate of various constructions are disclosed. In one embodiment, the sprung gate includes a first endless elastic band having an inner perimeter defining an open space sandwiched between a first gate member and a second gate member that each define an opening therethrough in an open position portion thereof. The first endless elastic band is sandwiched therebetween with its open space oriented for alignment with the opening in both of the first and second gate members, which are aligned with one another to form a passage through the sprung gate. In one aspect, the first endless elastic band in positioned inward a distance from the outer sides of the first and second gate members and spaces the first gate member a distance apart from the second gate member thereby defining a channel having a bottom defined by the first endless elastic band.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: July 20, 2021
    Assignee: Dayco IP Holdings, LLC
    Inventors: Brian M. Graichen, David E. Fletcher, Matthew C. Gilmer
  • Patent number: 11047487
    Abstract: A block forged valve body includes a fully encapsulated seat ring. The valve body includes a through hole and a chamber having a shelf portion that overlies an annular shoulder that encapsulates the valve seat. Methods for the manufacturing and use thereof are also provided.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: June 29, 2021
    Assignee: MCC Holdings, Inc.
    Inventors: Sudhir K. Kulkarni, Tyler A. Ledgett, Sachin S. Chaudhari, Ranjit N. Bhalkar
  • Patent number: 10563785
    Abstract: An erosion prevention structure for a sealing surface of a valve includes a valve body, a valve seat, a valve core, a valve sleeve and a valve rod. A valve seat mounting hole is provided in the valve body and located between a medium outlet and a cavity; the valve seat is arranged in the valve seat mounting hole; the top surface of the valve seat is provided with an annular table; the outside surface of the annular table is a sealing surface A, wherein an included angle is formed between the sealing surface A and a horizontal surface; an annular flange is arranged at the bottom of the valve core and located at the outer side of the valve core; the inside surface of the annular flange is a sealing surface B, wherein an included angle is formed between the sealing surface B and a horizontal surface.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: February 18, 2020
    Inventors: Cenwenda Li, Wei Li
  • Patent number: 10174848
    Abstract: The present invention provides a gate valve assembly having a valve body with a channel extending from a distal end to a proximal end, a gate configured to be moved from a first position to a second position, the second position being when the gate is positioned in the channel of the valve body between the distal end and the proximal end of the valve body. A seat insert is also provided to be threaded into a pocked of the valve body and a seat is configured to be positioned within the seat insert. A seal is adapted within a groove of the seat insert positioned between the valve body and the seat insert, wherein the seal is a fixed static seal providing no gaps and/or spaces between the seal insert and the valve body allowing no debris to corrupt the seals.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: January 8, 2019
    Assignee: SRI Energy, Inc.
    Inventor: Alagarsamy Sundararajan
  • Patent number: 9816641
    Abstract: A handle assembly configured to control water flow through a faucet valve. The handle assembly includes an output shaft rotatable about a first axis and configured to be operatively coupled to the valve; an input shaft rotatable about a second axis that is configured substantially transverse to the first axis, the input shaft configured to engage the output shaft to rotate the output shaft upon rotation of the input shaft; a handle coupled to the input shaft and configured to rotate the input shaft upon rotation of the handle about the second axis; and a saddle interconnecting the input shaft and the output shaft. The saddle includes a body having a channel that supports one of the input shaft and the output shaft, and a post extending away from the body and engaging an opening in the other of the input shaft and the output shaft.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 14, 2017
    Assignee: KOHLER CO.
    Inventors: Max Bock-Aronson, Murali Natarajan, Benjamin W. Marotz, Michael J. Strege, Jeffrey Schumacher, Joel Smith, Sharathkumar Badiger
  • Patent number: 9765894
    Abstract: A dynamic seal assembly is disclosed for use in a valve having an upstream pressure side and a downstream pressure side, the dynamic seal assembly including an annular seal member having a generally C-shaped cross-section and including opposed upstream and downstream legs defining an internal cavity with an opening facing toward the upstream pressure side of the valve, wherein the upstream leg has a radial length that is greater than a radial length of the downstream leg and includes a retaining foot that extends angularly away from the upstream leg in an upstream direction at an angle of between about 0° and 90°, and a metallic spring is disposed within the internal cavity of the seal member for providing a constant sealing force to the seal member.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: September 19, 2017
    Assignee: DELAVAN INC
    Inventors: Neal A. Thomson, Andy W. Tibbs
  • Patent number: 9752688
    Abstract: A double-plate gate valve is provided for fittings of industrial plants wherein the double-plate gate valve comprises a housing having two shut-off plates inside the housing the shut-off plates being displaceable between an open and a closed position. Spring elements, such as disc spring packs, are arranged between the shut-off plates pressing the shut-off plates in the closed position against sealing surfaces arranged on the housing such that the entire sealing force required for sealing is provided by the spring elements. Also provided in stand-alone form is a shut-off plate for use in the double-plate gate valve. A method for sealing the double-plate gate valve using the shut-off plates is also provided.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: September 5, 2017
    Assignee: Z&J Technologies GmbH
    Inventors: Roland Travnicek, Peter Weidgang, Ingo Wirtz
  • Patent number: 9222583
    Abstract: Provided in some embodiments is a system that includes a split gate valve including first and second gate sections coupled together and configured to move together within a cavity of the split gate valve between an open position and a closed position. The split gate valve includes a rolling actuator to reduce friction and to convert a rotational input into a linear motion to move the first and second gate sections between the open and closed positions. In other embodiments is provided a method that includes converting a rotational input into a linear motion to activate a split gate valve via a rolling actuator. The method also includes seating first and second gate sections of the split gate valve against opposite first and second seats to provide a double seal.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 29, 2015
    Assignee: Cameron International Corporation
    Inventors: Loc Gia Hoang, Christopher Jude Gerace
  • Patent number: 9114788
    Abstract: A pneumatic manifold for a braking system of a railway vehicle includes a first manifold section and a second manifold section, each having an interior surface thereon and a plurality of ports and passageways extending therethrough, and a manifold joint seal for creating a sealing engagement between the first manifold section and the second manifold section. The manifold joint seal is removably mounted inside a slot provided on the surface of one or both manifold sections. The manifold joint seal includes a retainer body having an opening extending therethrough, and two sealing elements are disposed within respective channels provided on opposing surfaces of the retainer body in the axial direction of the annular opening.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: August 25, 2015
    Assignee: Wabtec Holding Corp.
    Inventors: Robert N. Scharpf, S. Clay Evatt
  • Patent number: 9086155
    Abstract: A valve assembly is provided. The valve assembly includes a valve housing having an internal generally cup-shaped bore, a valve control cartridge inserted into the bore and having a rotatable control stem extending upwardly therefrom, and a bonnet nut threaded to an internal wall of the valve housing. The bonnet nut has a through channel that surrounds the control stem, and means are provided along the through channel to control a level of resistance to rotation of stem.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: July 21, 2015
    Assignee: KOHLER CO.
    Inventors: David H. Ritter, Chad J. Cochart, Douglas J. Brouwer, Christopher M. Shay, Brian S. Core, Michael W. Smith
  • Publication number: 20150137016
    Abstract: A gate valve is provided, the gate valve including a housing with two seat rings and two slide valve plates arranged on a plate holder and located between the seat rings, An actuator is arranged to bring the valve plates into a closed position bearing against the seat rings to halt flow between an inlet and outlet of the housing. Each slide plate has a depression in which a respective pressure piece is received. The pressure pieces face one another with one pressure piece having a projection that fits in a bore of the other pressure piece. Within at least a portion of the bore a plurality of spring elements are co-axially located on the projection between the pressure pieces biasing the pressure pieces and their respective valve plates apart.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 21, 2015
    Inventors: Hartmut Kuboth, Reinhard Klimpke
  • Patent number: 8662352
    Abstract: A fluid dispenser and a method for using the fluid dispenser with a syringe barrel holding a fluid including a distribution of composite materials. The fluid dispenser includes a dispensing valve operable to dispense the fluid and a coupling for fluidly connecting the syringe barrel to the dispensing valve. The fluid dispenser also includes a support frame for rotatably supporting the syringe barrel and a motorized drive unit configured to rotate the syringe barrel. The syringe barrel rotates via the motorized drive unit to distribute the composite materials uniformly within the fluid for dispensing the fluid.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: March 4, 2014
    Assignee: Nordson Corporation
    Inventors: Stephen R. des Jardins, William MacIndoe, Robert W. Springhorn
  • Patent number: 8662473
    Abstract: A gate valve includes a floating gate valve seat that effects a seal between a gate of a gate valve and a gate valve body using a metal seal. The gate valve includes a floating gate valve seat interposed between a gate and a gate valve body. The gate valve seat has a spring member with a cylindrical portion secured to the gave valve seat. The spring member has a leg that exerts a spring force against the gate valve body to maintain a seal between the floating gate valve seat and the gate. A metal-to-metal seal seals between the cylindrical portion of the spring member and a cylindrical portion of the gate valve seat.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: March 4, 2014
    Assignee: Vetco Gray Inc.
    Inventor: David Daniel Comeaux
  • Patent number: 8523144
    Abstract: A valve including an elastically deformable component is disclosed, wherein the elastically deformable component is disposed in one of a valve head and a valve body, and wherein the elastically deformable component is elastically deformed when the valve is in a closed position to facilitate a substantially fluid tight seal between the valve head and the valve body.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: September 3, 2013
    Assignee: GM Global Technology Operations LLC
    Inventor: Rainer Pechtold
  • Patent number: 8469335
    Abstract: A metallic seal for a 90° valve features a generally rectangular shape in section that defines a chamber open to internal pressure that can enlarge the chamber to enhance the sealing effect. Sealing occurs at discrete locations at portions of the seal that are preferably rounded in shape. Overlapping ends that define the entrance to the chamber also are positioned to minimize excessive deflection and resulting plastic deformation that could close off the entrance to the chamber.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: June 25, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Perry Batson, Nelson P. Nguyen, Namhyo Kim, Steve Rosenblatt
  • Patent number: 8459608
    Abstract: The present invention provides more efficient, cost effective coke drum valve devices and system as well as more efficient, cost effective methods for isolating the flow of matter in a delayed coker unit operation. Specifically, embodiments of the invention relate to various seat systems used in valves for delayed coking operations.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 11, 2013
    Assignee: Curtiss-Wright Flow Control Corporation
    Inventor: Ruben F. Lah
  • Patent number: 8230878
    Abstract: A valve is provided that comprises a valve chamber including first and second valve port openings in communication with first and second inlet/outlets, respectively. A shaft is rotatably disposed in the valve chamber. A first valve plate is rotatably coupled to the shaft that is disposed in the valve chamber over the first valve port opening. The first valve plate has a first opening positioned so as to align with the first valve port opening. The first valve plate is configured to rotate from its closed position covering the first valve port opening to an open position, where rotation of the first valve plate adjustably positions at least a portion of the first opening over the first valve port opening. A second valve plate is configured to rotate with the first valve plate, and to cover the second valve port opening.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: July 31, 2012
    Assignee: Emerson Electric Co.
    Inventors: Kok-Hiong Kee, Ruben Huerta-Ochoa, Jinmin Hu
  • Patent number: 8074678
    Abstract: A flow valve is provided that comprises a valve chamber including first and second valve port openings in communication with first and second inlet/outlets. The valve further includes a shaft rotatably disposed in the valve chamber, and a first valve plate rotatably coupled to the shaft that is disposed in the valve chamber over the first valve port opening. The first valve plate has a first tapered slot positioned therein so as to align with the first valve port opening. The first valve plate is configured to rotate from its closed position covering the first valve port opening to an open position, where rotation of the first valve plate adjustably positions a wider or narrower portion of the first tapered slot over the first valve port opening. The valve further includes a second valve plate that is configured to rotate with the first valve plate, and to cover the second valve port opening.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: December 13, 2011
    Assignee: Emerson Electric Co.
    Inventors: Kok-Hiong Kee, Ruben Huerta-Ochoa, Jinmin Hu
  • Patent number: 8061686
    Abstract: A pinch valve includes a valve body having a slot which is configured to allow a web of substrate material to pass therethrough. The valve body has a sealing surface which includes a first curved portion with a first radius of curvature. A dynamic seal element is configured to engage the valve body and includes a second curved portion having a second radius of curvature which is larger than the first radius of curvature. An actuator is operable to selectively bias the dynamic seal element into and out of engagement with the valve body so that when it is biased into engagement with the valve body the web of substrate material is engaged between the sealing surfaces of the dynamic seal element and the valve body. Also disclosed is a processing system which includes the pinch valve.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: November 22, 2011
    Assignee: Uniter Solar Ovonic LLC
    Inventor: Mark Lycette
  • Patent number: 8037900
    Abstract: A bi-directional adjustable energy dissipating near zero leakage head loss valve comprising a valve body including and actuation shaft housing and a guide shaft mount disposed in opposition along the transverse valve actuation axis; a fixed plate having downstream orifices parallel to the flow axis; a mobile plate having upstream orifices parallel to the flow axis adapted to move along the transverse valve actuation axis: from a fully open position, wherein the upstream and downstream orifices are aligned to allow flow communication to a fully closed position, wherein the orifices are blocked by the mobile plate; a self adjusting taper ring located about the upstream inner perimeter of the valve body, the self adjusting taper ring having an inner surface engagingly biased against and parallel to the upstream side of the mobile plate, and having an outer surface engagingly biased against an upstream pipe gasket flange.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: October 18, 2011
    Inventor: Bruce James
  • Patent number: 7971853
    Abstract: A pressure management apparatus including a housing (30) defining a fluid communication passage between first and second fluid ports (46, 48). A poppet (40) is disposed in the housing and is movable between first and second positions. The first position prevents fluid communication between the first and second fluid ports, and the second position permits fluid communication between the first and second fluid ports. The poppet includes a portion (75) translatable along an axis relative to the housing. A member (78) is fixed with respect to the housing and is associated with the portion of the poppet. Spring structure (72) is associated with the portion of the poppet. The spring structure is constructed and arranged to engage and bias the portion of the poppet to frictionally engage a portion of the member to create a dashpot damping of resonance of the poppet in the second position.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: July 5, 2011
    Assignee: Continental Automotive Systems US, Inc.
    Inventors: Paul Douglas Perry, Derek Thomas Landschoot
  • Publication number: 20110114860
    Abstract: Coupling apparatus for use with electric actuators are described herein. An example coupling apparatus described herein includes a coupling assembly to operatively couple a fluid flow control member of a fluid valve and a drive system of the electric actuator. Rotation of the drive system in a first rotational direction causes the coupling assembly to move in a first rectilinear direction and rotation of the drive system in a second rotational direction causes the coupling assembly to move in a second rectilinear direction opposite the first direction. The coupling assembly includes a biasing element that is to be deflected to provide a seat load to the fluid flow control member when the fluid flow control member is in sealing engagement with a valve seat of the fluid valve and electric power to the electric actuator is removed.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Inventors: Ross Arthur Schade, Thomas Pesek, Galen Wilke
  • Patent number: 7883073
    Abstract: Methods and apparatus for adjusting a spring load in an actuator are described. An example actuator includes a housing and a plate. Further, the example actuator includes one or more springs disposed in the housing to apply a force to the plate. Additionally, the example actuator includes a spring load adjuster having a collar extending through and movably engaged to the plate to enable an adjustment of the position of the collar relative to the plate to change a load provided by the one or more springs.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: February 8, 2011
    Assignee: Emerson Process Management Power and Water Solutions, Inc.
    Inventors: Steven Paul Sinka, Richard Peter Natili, Jr.
  • Patent number: 7866629
    Abstract: A gate valve comprising a valve body including at least a first seat adjacent to a groove. A gate is slideably carried in the valve body for movement between an open position wherein the gate is spaced from the at least one seat and a closed position wherein a portion of the gate is positioned within the groove and the gate is sealingly engaged with the at least one seat. A bridging member is biasedly positioned within the groove and is configured to substantially bridge the groove when the gate is in the open position.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: January 11, 2011
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Grant Harlow, Randall Wiggington
  • Patent number: 7758016
    Abstract: A ball valve comprising a housing, a ball seat disposed within the housing, and a ball rotatably movable within the housing, and engageable with the ball seat in order to provide a seal within the ball valve and the ball seat, wherein the ball seat comprises multiple seat surfaces independently capable of engaging the ball, a first seat surface engaging the ball to form a first seal, and being arranged such that pressure acting from above pushes the first seat surface against the ball; a second seat surface being movable relative to the first seat surface and engaging the ball to form a second seal, the second seat surface being arranged such that pressure acting from below causes the second seat surface to move relative to the first seat surface and pushes the second seat surface into contact with the ball.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: July 20, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Gordon Kenneth Scott, James Crabb, Ronald George Taylor
  • Patent number: 7600528
    Abstract: A double-disk slide valve (10), the shut-off plates (16, 17) of which are displaceable by means of an actuator rod (21) and which is provided with a bridging pipe (22) having two sealing rings (23, 24) that are in operative engagement with corresponding housing sealing seats (14, 15) of the slide valve housing (11) when the slide valve is in the open position. At least one of the two housing sealing seats (14, 15) rests, by the action of a resilient element (25), under predetermined pressure against the sealing ring(s) (23, 24) associated with the bridging pipe (22) when the slide valve is in the open position and against the peripheral edge of the shut-off plate(s) (16, 17) when the slide valve is in the closed position.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: October 13, 2009
    Assignee: Z&J Technologies GmbH
    Inventors: Ekkehard Brzoska, Norbert Marx, Friedel Heller
  • Publication number: 20090179168
    Abstract: Methods and apparatus for adjusting a spring load in an actuator are described. An example actuator includes a housing and a plate. Further, the example actuator includes one or more springs disposed in the housing to apply a force to the plate. Additionally, the example actuator includes a spring load adjuster having a collar extending through and movably engaged to the plate to enable an adjustment of the position of the collar relative to the plate to change a load provided by the one or more springs.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 16, 2009
    Inventors: Steven Paul Sinka, Richard Peter Natili
  • Patent number: 7520297
    Abstract: A pressure regulator is provided. In one embodiment, the pressure regulator includes a housing having a supply port for receiving a pressurized medium within the housing and an outlet port for outputting the pressurized medium to a downstream device. The housing of this embodiment also includes a vent port for venting the pressurized medium from the housing. The pressure regulator of this embodiment further includes two pistons disposed within the housing, wherein one piston controls flow of the pressurized medium through the supply port, and the other piston controls flow of the pressurized medium through the vent port, based on the level of pressure within the housing. Other embodiments of pressure regulator devices and systems are also provided.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: April 21, 2009
    Assignee: Cameron International Corporation
    Inventors: Thomas M. Bell, Scott D. Ward
  • Patent number: 7520291
    Abstract: A backpressure-protected valve suitable for subsea well treatment chemical injection applications includes an improved gate valve, a check valve and a pressure compensator responsive to ambient hydrostatic pressure. The check valve may comprise a poppet valve in a detachable outlet body. The pressure compensator comprises a free piston in a cylinder. The portion of the cylinder on one side of the piston is exposed to seawater whereas the portion of the cylinder on the opposing side of the piston is filled with a selected hydraulic fluid. In this way the valve actuator is not exposed to the corrosive and/or contaminating effects of seawater.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: April 21, 2009
    Assignee: National Coupling Company, Inc.
    Inventor: Richard R. Watson
  • Patent number: 7361149
    Abstract: A pressure-dependent automatic leak valve for sphygmomanometers is able to regularly reduce the pressure in a cuff without manipulation of a pressure reducing valve. Fluid resistance of air to be discharged through the pressure-dependent automatic leak valve is automatically changed so that air is discharged at a constant rate, and the pressure in the cuff is reduced at a constant speed.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: April 22, 2008
    Inventors: Eun Jong Cha, Kyung Ah Kim, Sung Hoon Kim
  • Patent number: 7117890
    Abstract: A valve for supplying pressured air to vehicle air bags, includes a shuttle (20) with a valving member (80) having a precision polished seal surface (86) that presses against a precision polished sealed-against housing lower surface (50) of a housing (14) that confines the shuttle to sliding left and right. A recess (90) in the valving member can connect first and second holes (52 and 56, 58) in the housing lower surface, or isolate the holes from each other. The shuttle includes a shuttle frame (70) with a vertical bore (74) that receives a guiding part (82) of the valving member. A conduit extends from the valving member recess to a sealed region (102) at the top of the vertical passage to pressurize the sealed region with pressured air, to push down the valving member against the housing lower surface.
    Type: Grant
    Filed: November 8, 2003
    Date of Patent: October 10, 2006
    Assignee: Barksdale, Inc.
    Inventor: Angel Ching
  • Patent number: 7044442
    Abstract: The invention relates to a valve block (1) for a control device comprising a valve (9) whose valve piston (14) is subjected to the action of a control pressure when in its open position and to the action of a return spring (15) when in its closed position. The closing force of the return spring (15) can be decreased or increased by an actuator, which can be displaced toward a position that increases the closing force and one that decreases the closing force. In order to simplify the displacement or adjustment and to improve reliability, the displacing movement of the actuator (16a) in the direction of movement that increases the closing force of the return spring (15) is limited by a stop element (112) in a position in which the closing force of the return spring (15) reaches its limited maximum value.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: May 16, 2006
    Assignee: Brueninghaus Hydromatik GmbH
    Inventor: Roland Belser
  • Patent number: 6978980
    Abstract: In a slide valve closure for the casting of a metal melt a slider plate and a stationary closure part are braced against each other by means of spring units or by other means. There is provided a casing framework attachable to a mould or the like, in which is fixed a detachable casing part on which the spring units are held and in which the stationary closure part and the slider plate can be accommodated. This allows safe operation and simple and rapid mounting and dismounting of the slide valve closure.
    Type: Grant
    Filed: July 7, 2001
    Date of Patent: December 27, 2005
    Assignees: Hydro Aluminum Deutschland GmbH, Stopinc AG
    Inventors: Werner Plattner, Harry Amsler, Wolfgang Müller, Ralf Bock
  • Patent number: 6957659
    Abstract: A linear actuated disk valve for a fluid conveyance system constructed with a valve body having an internal chamber and a passage through the valve body, the valve body having opposite ends with external connectors that continue the passage and that are connectable to other components in the fluid conveyance system, the improvements being a displaceable cam action closure member in the chamber of the valve body, the closure member having a disk retainer assembly with a disk retainer and at least a pair of circular closure disks engageable with the disk retainer formed by a cam on the retainer and a cam track on the disk being laterally displaced on initial linear displacement of disk retainer with the disk retainer being connected to an actuator shaft with an improved sealing assembly for sealing the shaft at the top of the valve body.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: October 25, 2005
    Assignee: Everlasting Valve Company, Inc.
    Inventor: C. James Sheppard
  • Patent number: 6923429
    Abstract: An electrical grounding assembly for a control valve providing a shared electrical connection between a valve body and valve trim. An elastic grounding connector having an elastic region and an electrically conductive surface is placed between the valve body and the valve trim. The valve trim compresses the electrically conductive surface of the elastic grounding connector to deform the elastic region of the elastic grounding connector to form a shared electrical connection between the valve body and the valve trim.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: August 2, 2005
    Assignee: Fisher Controls International LLC
    Inventors: Peter K. Merrill, Joel R. Anderson
  • Patent number: 6845783
    Abstract: A linear actuated disk valve for a fluid conveyance system constructed with a valve body having an internal chamber and a passage through the valve body, the valve body having opposite ends with external connectors that continue the passage and that are connectable to other components in the fluid conveyance system, the improvements being a displaceable cam action closure member in the chamber of the valve body, the closure member having a disk retainer assembly with a disk retainer and at least a pair of circular closure disks engageable with the disk retainer formed by a cam on the retainer and a cam track on the disk being laterally displaced on initial linear displacement of disk retainer with the disk retainer being connected to an actuator shaft with an improved sealing assembly for sealing the shaft at the top of the valve body.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: January 25, 2005
    Assignee: Everlasting Valve Company, Inc.
    Inventor: C. James Sheppard
  • Patent number: 6578818
    Abstract: The current invention relates to a valve device (1), in particular for tank ventilation in motor vehicles, having a valve housing (6, 7, 8) with an inlet fitting (10) and an outlet fitting (11), having an armature (26) that is provided inside the valve housing (6, 7, 8) and can be moved by means of an electromagnet (22), having a closing body (40) that is connected to the armature (26) and closes a sealing seat (13) of the outlet fitting (11) when the electromagnet (22) is without power and opens it when the electromagnet (22) is supplied with power wherein the free cross sectional area between the inlet fitting (10) and the outlet fitting (11) can be continuously changed, and having a spring element (50) which presses the closing body (40) with a slight pressure against the sealing seat (13).
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: June 17, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Erwin Krimmer, Wolfgang Schulz, Tilman Miehle
  • Patent number: 6439538
    Abstract: A pressure variable valve apparatus includes a mover constituted to be embedded in the body and movable linearly in B direction in a main body to change pressure for releasing closure of a valve flow path by a valve element, a fixed magnetic marker provided unmovably to the main body and a variable magnetic marker integrally formed with the mover. Meanwhile, a set pressure detecting apparatus includes a magnetic sensor and a supporter for supporting from outside of the body the magnetic sensor scannably in direction for moving the variable magnetic marker to provide detected output in accordance with positions of the fixed magnetic marker and the movable magnetic marker of the valve apparatus from the magnetic sensor.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: August 27, 2002
    Assignee: Seiko Instruments Inc.
    Inventor: Takashi Ito
  • Patent number: 6029682
    Abstract: A spool slides in a bore to open and close a valve. An armature moveable relative to the spool is biased in a first direction. A coupling biasing member biases the armature and the spool toward each other. When a solenoid is actuated the armature and the spool move in a second direction opposite the first direction until the spool forcibly engages a seat in the bore, closing the valve and stopping the spool movement. The armature continues to move in the second direction, causing the coupling to apply additional force to keep the spool engaged against the seat, until the armature reaches a second position where it forcibly engages with the spool. This stops the armature from moving further in the second direction, but allows the stationary armature to continue applying force to keep the spool engaged against the seat. When the solenoid is de-energized the armature bias sends the armature back in the first direction until it strikes the spool, causing the spool to rapidly unseat, thus opening the valve.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: February 29, 2000
    Assignee: Caterpillar Inc.
    Inventors: Stephen R. Lewis, Charles B. Looney, Larry R. Mitzelfelt, Jr., David E. Martin, James D. Griffith, Kenneth A. Caron, William T. Groff, J. Duwayne Manahan, Avtar S. Sandhu, Wade J. Robel
  • Patent number: 5794917
    Abstract: A valve is placed between two relatively movable parts, especially to control coolant flow in a tool turret. One part has a valve housing and a movable valve body within valve housing. The valve body has a sealing surface and a discharge opening, opening into the sealing surface. The other part has a valve seat with a seat surface and a valve passage opening into the seat surface. At least a portion of the area of the sealing surface lying adjacent to the discharge opening in the direction of movement of the two parts is of greater dimensions than the diameter of the valve passage. The valve has a wiper.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: August 18, 1998
    Assignee: Sauter Feinmechanik GmbH
    Inventors: Detlef Dieter Sahm, Rolf Wezel
  • Patent number: 5791328
    Abstract: A valve, especially for use in a paintball gun which includes a pressure chamber bore for receiving gas from a source, an exhaust bore which leads to a barrel, and a valve chamber bore between the pressure chamber bore and exhaust bore. The valve includes a body mounted in the valve chamber bore with a flow path between the pressure chamber and exhaust bores, and a cupseal seat on the upstream side of the flow path. A valve stem passes through a portion of the flow path and is slidably supported by a support nose, and presents an actuation surface at one end, and supports a cupseal to mate with the seat at the other end. The cupseal has radial guide legs to closely and slidably contact the pressure chamber bore to aid alignment. The cupseal will normally be held against the seat by gas pressure and/or a spring; to open the valve, the gun may be provided with a hammer which is released to strike the actuation surface of the valve stem, to unseat the cupseal and allow gas to flow into the barrel.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: August 11, 1998
    Inventor: Aaron K. Alexander
  • Patent number: 5582206
    Abstract: A self wear compensating valve for controlling flow of a fluid employs seals for sealing between relatively moving parts. In one of the parts, an annular recess is formed. A conformable sealing member is placed in the recess, and a spring biased to expel the conformable sealing member and press it against a sealing surface on the other part is provided. An O-ring placed on the outside of the conformable sealing member prevents leakage of fluid through the recess outside of the conformable sealing member. As the conformable sealing member is worn away, after many cycles of the valve, the spring continues to press it against the sealing surface, while the O-ring continues to prevent leakage of fluid outside the conformable sealing member. A rotary valve suitable for railroad brake applications is provided, which controls flow of fluid from a supply to the brake cylinder, and provides for exhaust of fluid from the brake cylinder. The valve has a supply port, a delivery port and an exhaust.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: December 10, 1996
    Assignee: Westinghouse Air Brake Company
    Inventor: Daniel Brillant
  • Patent number: 5573034
    Abstract: The present invention provides an air valve (10) for inflating and deflating an inflatable. The air valve (10) includes a housing floor (16) with air ports (36, 38), and a slide bar (12) with an air passageway (54) formed therein. The slide bar (12) is supported on the floor (16) by seal rings (92) surrounding the ports (36, 38) and is biased into a center position by a spring (94) positioned in a spring well (28) in the slide bar (12) or the floor (16). Pins (50, 52) project into the spring well (28) and engage opposite ends of the spring (94). A stem extends from a tilt button (66) into a socket (48) on the slide bar (12). When the button (66) is tilted, it moves the slide bar (12), compressing the spring (94) and aligning the ports (36, 38) and the passageway (54) to allow air to pass through the valve (10). The slide bar (12) is prevented from tilting by a stabilizer frame (82) or housing shoulders (220).
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: November 12, 1996
    Assignee: GT Development Corporation
    Inventors: Denny Gabrlik, John M. Morris
  • Patent number: 5542684
    Abstract: A seal for a gas isolator comprises a cantilever leaf spring (1) attached to a fixed frame or a movable member (2) of the isolator, and a bias spring (3) acting on the leaf spring, and a bar (4) disposed below the seal for clamping and supporting the latter, characterized by at least one additional damping element which will usually comprise a further leaf spring (7), and characterized in that the clamping/support bar (4) is of reduced width.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: August 6, 1996
    Assignee: WES Technology Inc.
    Inventor: Anton F. Squirrell
  • Patent number: 5474104
    Abstract: A refueling check valve assembly which provides for rapid, efficient, and safe refueling of compressed natural gas powered vehicles is provided and includes a receptacle adapted to mate with a fuel supply nozzle and a valve body having first and second gas flow passages therethrough. The respective first ends of the first and second gas flow passages communicate with the receptacle, while the respective second ends of the first and second gas flow passages are adapted to communicate with a fuel storage vessel, typically through a fuel supply line. A check valve is positioned in the first gas flow passage of the valve body and is normally biased into a closed position to prevent the flow of gas through the first gas flow passage. The check valve opens in response to a flow of fuel under pressure, permitting the flow of gas to the fuel storage vessel. A by-pass valve is also provided in the second gas flow passage in the valve body for depressurizing the fuel system prior to servicing.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: December 12, 1995
    Assignee: Superior Valve Company
    Inventors: Robin N. Borland, David E. Hughes, William S. Kalaskie, John Piscatelli, Paul Rafalowski, Timothy R. Stiffy, Paul L. Wellener, III
  • Patent number: 5356114
    Abstract: The present invention provides a mechanically operated traveling valve for use in a sucker rod pump. The valve includes a cylindrical housing, a base positioned in the bottom of said housing which contains a first portion of a sliding shear seal, and a piston positioned within said housing above said base which contains a second portion of the sliding shear seal. The valve is operable between open and closed positions by reciprocal action of a sucker rod on the piston which opens and closes the sliding shear seal.
    Type: Grant
    Filed: January 26, 1994
    Date of Patent: October 18, 1994
    Assignee: Mash Oil Tools, Inc.
    Inventor: Kenneth R. Havard
  • Patent number: 5331998
    Abstract: A suction valve for a gas compressor includes a cylindrical valve guide cage with plurality of rows of valve guides, each with a corresponding poppet valve slidably movable therein. Each valve guide communicates with a compressor cylinder. A concentric cylindrical valve seat chair with a like plurality of rows of valve seats surrounds the valve guide cage. Each valve seat communicates with a suction chamber. A plurality of openings extending through the guide cage are spaced between the rows of valve guides. To unload the compressor, the valve guide cage is movable relative to the valve seat chair, thus unseating the poppet valves and effectively opening the compressor cylinder to the suction chamber. A first embodiment uses a pneumatic cylinder to move the valve guide cage longitudinally while a second embodiment uses a rotary crank to move the valve guide cage rotationally.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: July 26, 1994
    Inventor: Lauren D. Sperry
  • Patent number: 5318274
    Abstract: In a sealing element for use in particular in high vacuum technology, a moveable closure unit (4) is closed tightly against a fixed outer flange (1) whose sealing surface (2) is preferably conical. The closure unit (4) comprises a hat-shaped outer part (5) with a flat base (8) and a sealing surface (7) around the periphery; and an inner part (6) concentric with, and smaller in diameter than the outer part. Between them are one or more spring elements (10), arranged as segments on a ring, which act as a disk spring; these are supported by the outer and inner edges on the outer (5) and inner (6) parts. The spring elements (10) are mounted at an oblique angle radially towards the base (8) of the outer part (5) in such a way that when the base (8) of the outer part is subjected to pressure, the radial force is produced at the sealing surface (7) of the elastically deformable outer part (5) and its base (8) is pressed inwards.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: June 7, 1994
    Assignee: Cetec AG
    Inventor: Friedrich Tinner
  • Patent number: 5314222
    Abstract: A vacuum manipulator, comprising an elongated body with two segments of longitudinal ducts one of which opens at one end for connection to a suction source and the other one of which is adapted to be fitted with a suction nozzle, openings communicating the duct segments with a longitudinal guide channel, a spool valve mounted for longitudinal sliding in the guide channel, the bottom of the channel being flat with the face of the spool valve adjacent to the bottom having three contact zones for elevating the face relative to the bottom, one of the contact zones being central and being formed by a support wall which defines a generally enclosed area, the other two of the zones being located at opposite ends of the spool valve, a piston having an endless wall defining an enclosed space and being mounted for sliding engagement with the bottom of the guide channel for selective communication with the openings, a spring operable with the piston to urge the endless wall of the piston in generally sealing engagement
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: May 24, 1994
    Assignee: Cooper Industries, Inc.
    Inventor: Jean E. Oehninger