Plug Valve Patents (Class 137/15.24)
  • Patent number: 9863765
    Abstract: This invention reliably returns a measurement surface to a reference position while weakening the elastic force of a spring. A tool length measurement apparatus of this invention includes a supporter that supports the measurement surface that the tip of a tool contacts while translating in accordance with a biasing force received from the tool. The tool length measurement apparatus of this invention also includes a detector that detects the position of the measurement surface in a translation direction. The tool length measurement apparatus of this invention also includes a biasing unit that biases the measurement surface by a gas in a direction against the biasing force received from the tool.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: January 9, 2018
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventors: Ken Onoe, Akira Kimura
  • Patent number: 8991786
    Abstract: Methods and apparatus to align a seat ring in a valve are described. An example fluid valve includes a valve body having a curved internal surface to receive a seat ring and a seat ring having a sealing surface to receive a movable control member and a curved surface opposite the sealing surface to engage the curved internal surface of the valve body.
    Type: Grant
    Filed: April 30, 2011
    Date of Patent: March 31, 2015
    Assignee: Fisher Controls International LLC
    Inventors: Lonnie Oscar Davies, Jr., David J. Westwater
  • Patent number: 8944408
    Abstract: In accordance with various embodiments, a plug head assembly is provided comprising a ceramic plug head having a frustroconical geometry, wherein the ceramic plug head has a proximal terminus and a distal terminus, wherein the ceramic plug head has a first coefficient of thermal expansion (CTE), a sleeve having a frustroconical geometry conforming to the ceramic plug head and a second CTE, wherein the second CTE is greater than the first CTE, a distal retainer having a frustroconical geometry conforming to the sleeve, the distal retainer having a first engagement portion for engaging the a proximal retainer, the proximal retainer having a second engagement portion for engaging the distal retainer, and a base that couples with the proximal retainer. In addition, thick banded plug heads are provided.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: February 3, 2015
    Assignee: Caldera Engineering, LC
    Inventors: Jeffrey C. Robison, M. Robert Mock, Frank Redd
  • Publication number: 20140353535
    Abstract: Reciprocating compressors used in oil and gas industry having actuated rotary valves with sealing profiles between a rotor and a stator thereof and related methods are provided. An actuated rotary valve includes a stator having a stator opening, and a rotor having a rotor opening. At least one of the rotor and the stator has a sealing profile extruding from a surface of the rotor or of the stator towards an interface there-between, the sealing profile surrounding a respective one of the rotor opening or the stator opening.
    Type: Application
    Filed: December 13, 2012
    Publication date: December 4, 2014
    Inventors: Riccardo Bagagli, Leonardo Tognarelli
  • Publication number: 20140345704
    Abstract: A dual flow gas valve suitable for gas grills that allows a user to select the valve for use with gases of different heating values and to select one of a high flow position and a low flow position for each gas. The gas valve includes a body and an input passageway communicating with the body. In one embodiment, a rotational member in the body defines a first port communicating the input passageway with an interior chamber. The rotational member defines an additional passageway external to the rotational member. The rotational member may be rotated to a first position to activate high flow through the rotational member or may be rotated to a second position to activate the external, low flow, passageway.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 27, 2014
    Applicant: W.C. BRADLEY CO.
  • Publication number: 20140110617
    Abstract: A plug valve includes a valve body (10) and a valve stem (30) supporting a plug (32). A seat is formed on and is integral with the valve body. The seat includes a seating surface (16) above and below the passageway connecting the fluid inlet and the fluid outlet. The seating surface provides a seal with the plug. A method of forming the seat on the valve body is disclosed.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 24, 2014
    Inventor: Peter Mark Middleton
  • Publication number: 20140090719
    Abstract: A balanced pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. A valve seat is disposed within the fluid passageway. A self-aligning valve plug is at least partially disposed within the fluid passageway, the self-aligning valve plug interacting with the valve seat to selectively open or close the fluid passageway. A retainer is partially disposed within a bore of the self-aligning valve plug and operatively connects the self-aligning valve plug to a valve stem having a ball portion. More specifically, the retainer includes a recess adapted to receive the ball portion of the valve stem, such that the self-aligning valve plug automatically rotates around the ball portion of the valve stem to achieve alignment and sealing engagement between a valve disc of the self-aligning valve plug and the valve seat.
    Type: Application
    Filed: September 26, 2013
    Publication date: April 3, 2014
    Inventors: Jason S. Mevius, Guolei Fan, Biao Zhou
  • Publication number: 20140060076
    Abstract: A valve skirt is connected to a shaft. The shaft extends in a rearward direction away from the skirt and has rack teeth at a location spaced away from the skirt. A tab is positioned between the skirt and the rack teeth, and has at least one flat surface. A rack support supports the rack for axial movement, and the rack support has a support ear that has a flat surface engaging the flat surface on the rack to prevent relative rotation of the rack when driven by a pinion gear. An air starter valve, a gas turbine engine and a method are also disclosed.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Inventors: Todd D. Cortelli, Matthew R. Greco, Paul D. Boyce
  • Patent number: 8550432
    Abstract: A stopcock includes a housing and a sealing insert. The housing includes a first surface, a first blind hole defined in the first surface, and a through hole defined in a first bottom surface of the housing in the blind hole. The through hole tapers toward the bottom surface. The sealing insert includes a first engaging portion and a second engaging portion connected to the first engaging portion. The first engaging portion is engagingly received in the blind hole. The second engaging portion is engagingly received in the through hole.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: October 8, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Ming-Lung Guo
  • Publication number: 20120199213
    Abstract: The present invention improves upon a pop-up drain stopper of the type which is controlled by a horizontal pivot rod as is typically used in bathroom sinks, through incorporation of a new snap-in method for attachment of the stopper to the pivot rod whereby the stopper can be easily and quickly removed and reinstalled as is normally required to clear a clogged drain. The present invention is installed by inserting the stopper into the drain opening with the bottom connecting bracket channel opening positioned over the pivot rod and applying downward pressure forcing the pivot rod to pass through the narrow channel and snap into the connecting bracket journal. Transversely, by pulling upward, the stopper is disengaged from the pivot rod and can be quickly removed from the drain opening allowing for convenient and efficient extraction of drain clogs without the necessity of disassembling the mechanical components located under the sink as is required to remove the typical pop-up stopper.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 9, 2012
    Inventor: Richard Martin Reavis
  • Patent number: 7703205
    Abstract: A high-pressure plug valve is refurbished by replacing a valve plug, a valve plug cage, and flow path inserts that line a flow path through the plug valve. The valve plug cage has first and second opposed flat side surfaces, each side surface has a port for receiving one of the replaceable flow-path inserts in a fluid-tight seal. In one embodiment, refurbishing the plug valve includes replacing at least one inset seal for sealing at least one of the ports when the plug is in a closed position to inhibit leakage through the valve at low fluid pressures.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: April 27, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: Bob McGuire, L. Murray Dallas
  • Patent number: 7645418
    Abstract: A gas purge device for a metallurgical melting vessel includes a conically shaped ceramic body (2) in contact at its top side with heat contained in the melting vessel. The ceramic body has a static external element and an internal element axially movable therein. A pneumatic drive axially moves the internal element to and fro relative to the external element between a closed position and an open position. The spring force of a spring retains the internal element in the closed position. The device furthermore includes a gas-tight enclosed volume arranged at the bottom side of the ceramic body the volume being connected to a gas supply duct for introduction of purge gas. A deformable membrane is connected to the internal element with the pressure difference between the purge gas pressure prevailing in the gas-tight enclosed volume and the ambient pressure acting upon the membrane.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: January 12, 2010
    Inventors: Stefan Munding, Germann Munding
  • Patent number: 7614431
    Abstract: A flow-restricting plug is provided for installation within a vapor recirculation pipe that communicates with a fuel filler pipe. The plug is manufactured of fuel-impervious material and has a cylindrical shape adapted to be mounted by press fit within the vapor recirculation pipe. A flow passage of tortuous shape is formed along the outer circumferential surface of the plug between the opposed ends thereof. The tortuous shape of the flow passage permits the flow of fuel vapor through the plug but prevents the flow of liquid fuel through the plug.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: November 10, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Jeffrey S. Basista, Roy A. Giacomazzi, Peter N. C. Nguyen
  • Publication number: 20090025795
    Abstract: Apparatus to connect a valve stem to a valve plug and, more particularly, apparatus to connect a threaded valve stem to a valve plug of a control valve are disclosed. An example apparatus includes a threaded valve stem received in a threaded opening of a valve plug and a securement member received in an adjacent opening extending from at least one of the threaded opening or an exterior surface of the valve stem to secure non-rotatably the threaded valve stem to the valve plug.
    Type: Application
    Filed: July 23, 2007
    Publication date: January 29, 2009
    Inventor: William E. Wears
  • Patent number: 7047994
    Abstract: A medical stopcock is provided that is constructed and arranged to withstand high pressures and gamma irradiation. The stopcock generally includes a housing and a valve member. The valve member is trapped within the housing so that, when subjected to relatively high pressures, the valve member is unlikely to become separated from the housing. A handle member is attached to the valve member and allows the valve member to be rotated from open to closed positions. In some preferred embodiments, the handle member locks the valve member within the housing, when attached. All of the components are constructed of gamma-stable materials so that the stopcock may be sterilized, in its package, using gamma irradiation.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: May 23, 2006
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Thomas J. McPeak, Jon K. Moon
  • Patent number: 6675825
    Abstract: A plug valve is provided that may be lubricated while in service. The invention provides a high-pressure valve having a valve body containing a plug allowing bi-directional flow and moveable between an open and closed flow-through position. The valve permitting lubricating and sealing while in-service and in the closed or open position. The lubricating and/or sealing mechanism includes channels formed through the plug to a lubricant groove or grooves formed on the outside surface of the plug between the ends of the fluid conduit through the plug for directing lubricant to the plug-insert or plug-valve body interface when the plug is in the closed position and lubricant to the relief area formed by the insert when the plug is in the open position.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: January 13, 2004
    Assignee: Dixie Iron Works, Ltd.
    Inventors: Scott A. Reeves, Harry A. Hughes
  • Patent number: 6640823
    Abstract: A fitting including a housing (2), a rotatable body (4) which is situated in the housing and which may advantageously be constructed in the form of a conical plug, a bushing (18) provided in the housing to floatingly mount and seal the rotatable body (4), a cover (14) connected to the housing (2), a shaft (12) coupled with the rotatable body (4) and extended out through the cover (14), and at least one sealing element (30, 44) associated with the shaft (12). The fitting is configured in such a way that the bushing (18), the at least one sealing element (30, 44), and the cover (14) can be positioned and mounted centrally and free from transverse forces in relation to the axis (10) of the floatingly mounted rotatable body (4).
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: November 4, 2003
    Assignee: Xomox International GmbH & Co.
    Inventor: Wolfgang Gonsior
  • Patent number: 6609532
    Abstract: A rotational two valve disconnect apparatus including a first rotational valve, a second rotational valve, and a rotational disconnect structure connected to the valves. The valves on the disconnect structure are constructed so that the disconnect can be engaged to flowably connect the first and second valve and disconnected to separably disconnect the first and second valves. The structure is further designed so that a single rotational movement will engage the disconnect structure and open the first and second valves or an opposite rotational movement may close the first and second valves and then disengage the disconnect structure. The preferred embodiment utilizes a single rotational axis for both the first and second valves and the disconnect structure. A further design advantage includes radial ports to allow for reduced operating requirement for the valve in high pressure environments.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: August 26, 2003
    Assignee: Dialysis Systems, Inc.
    Inventor: Michael J. Peterson
  • Patent number: 6270055
    Abstract: In a hose coupling with a coupling sleeve and a coupling nipple and a valve insert (9) provided therein, the valve spring, the holding element and the valve seat of the valve insert are designed as a one-piece component, and the valve spring (11) has a cavity (21) which is closeable.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: August 7, 2001
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Andreas Szeteli, Werner B├╝ttner, Martin Benzinger
  • Patent number: 6206024
    Abstract: An improved valve disc assembly that can be easily and conveniently disassembled and reassembled with accurate positioning of the valve disc within the through bore of the valve body. A split clamp ring is provided for securing the seat retaining ring and valve seat onto the valve body for sealing engagement with the valve disc. The shaft through which movement of the valve disc to and between open and closed positions is accomplished, also includes a detent that automatically positions the valve disc within the bore upon reassembly of the valve.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: March 27, 2001
    Inventor: E. Paul Naberhaus