External Pressure Patents (Class 137/246.22)
  • Patent number: 10883619
    Abstract: Improved valve assemblies (e.g., multi-position valve assemblies) are provided. More particularly, the present disclosure provides for high efficiency multi-position rotary backwash valve assemblies. In exemplary embodiments, the present disclosure provides for a four-position rotary high efficiency valve assembly for a swimming pool or spa filter. The present disclosure provides multi-position valve assemblies having infrequent maintenance and allowing for user-friendly service. The present disclosure provides for improved multi-position valve assemblies and related features, systems and methods of use. Improved, convenient and effective systems and methods for utilizing improved multi-position valve assemblies (e.g., high efficiency multi-position rotary backwash valve assemblies) are provided. The valve assembly can be utilized in fluid systems as a flow control assembly (e.g., as a backwash valve associated with a pool or spa filter).
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: January 5, 2021
    Assignee: Hayward Industries, Inc.
    Inventor: Jacob Cody Smith
  • Patent number: 10794496
    Abstract: A ball valve positioned between a first line and a second line includes a housing and a ball disposed a ball disposed within the housing. The ball includes a bore and is configured to rotate between an open position and a closed position. The ball valve also includes an annular seat disposed between the housing and the ball. The annular seat includes a first annular sealing ring extending circumferentially about a radially-outer surface of the annular seat and an axially-extending passageway extending through the annular seat to enable fluid flow from a valve cavity to an annular space between the annular seat and the housing. The first annular sealing ring, the axially-extending passageway, and the annular space facilitate movement of the annular seat away from the ball as the ball rotates from the closed position toward the open position.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: October 6, 2020
    Inventors: Ronald J. Manson, Mircea Balan
  • Patent number: 10465804
    Abstract: A structure and method for fastening a ball seat for a ball valve, a trunnion ball valve, and a hydrogen station using the ball valve, in which a stepped part is positioned medially in each of inner and outer peripheral surfaces of a resin-made annular seat body, with a seat part on a tip side and a holding part on a rear end side; an attachment groove defined by inner and outer cylinders having a ring-shaped swaging edge part at a tip of a seat retainer; the holding part being attached to the attachment groove; and the swaging edge part of the inner and outer cylinders being in contact with and fixed by being swaged to the stepped part so as to cause the seat part to protrude farther than a swaging position.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: November 5, 2019
    Inventors: Osamu Watanabe, Tomoya Yamasaki
  • Patent number: 10408355
    Abstract: A valve includes an annular body defining a body bore. An annular valve seat is positioned in the body bore and an annular groove is defined in a portion of the annular sealing surface. A rotatable valve element is positioned in the body bore. With the valve element in a closed and an unpressurized condition, the annular groove is deformed and a first groove gap is defined in the annular groove adjacent to the first disc face and a second groove gap is defined in the annular groove adjacent to the second disc face. With the valve element closed and in a pressurized condition, the annular groove is deformed and a third groove gap is defined in the annular groove adjacent to the first disc face. A volume of the third groove gap is greater than a volume of the first groove gap and second groove gap.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: September 10, 2019
    Assignee: Mueller International, LLC
    Inventors: Ashraf Abouelleil, Steve Sharp, Julian Ramirez
  • Patent number: 10352467
    Abstract: A direct-action-type electrically-operated valve comprises a valve base provided with a valve cavity, a motor disposed on the upper end the valve base, and a screw rod. The screw rod is fitted and connected to a nut by means of threads. The nut is connected to a spool. Axial positions of a rotor of the motor and the valve base are relatively fixed. The upper end of the screw rod is fixedly connected to the rotor. Driven by the nut, the spool moves along the axial direction of the valve cavity to open or close a valve opening disposed on the valve base. The spool is a tubular structure provided with a balancing channel, and a seal piece for dividing the valve cavity into two independent cavities is disposed on the periphery of the spool.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: July 16, 2019
    Assignee: Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd
    Inventors: Ming Lv, Xianrang Wei
  • Patent number: 10302202
    Abstract: A valve assembly for modulating flow of a fluid through a valve may include a plunger, a flange with an orifice, a first disc with an orifice, a second disc, a gasket in contact with both the flange and the first disc, three bearing members disposed between the first disc and the flange. The three bearing members define a position and orientation of the first disc with respect to the flange, and separate the first disc from the flange, thereby defining a gap between the flange and said disc. The plunger displaces the second disc surfaces from a first position to a second position.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 28, 2019
    Inventors: Dominik Eggert, Joerg Evertz
  • Patent number: 10203037
    Abstract: A valve assembly for managing a flow of fluids in hydrocarbon development and production operations includes a valve body having an internal body cavity and a body bore intersecting the body cavity. A valve plug is located within the body cavity and is rotatable between an open position and a closed position. A sleeve is located between the valve plug and the valve body and is rotationally fixed to the valve body and remains rotationally static relative to the valve body as the valve plug rotates. A seal groove is located on a sidewall surface of the sleeve and circumscribes one of the sleeve openings. A seal assembly has a seal ring that is U shaped in cross section with an inner leg that engages the seal groove and an outer leg that extends out of the seal groove and engages one of the valve body and the valve plug.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: February 12, 2019
    Assignee: GE Oil & Gas Pressure Control LP
    Inventors: Rick C. Hunter, Robert S. McKee, Manuel Garibay, Chad Eric Yates
  • Patent number: 10070754
    Abstract: A fuel efficient grill that permits effective direct and indirect cooking, permits movement of the fuel grate and has uniquely shaped air intake slots is provided. Also provided is a hinged deflector or diffuser plate and an adjustable top vent assembly.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: September 11, 2018
    Inventors: Erich J. Schlosser, James Michael Sunich, Hollice Childress, Romualdo Sonny Siazon, Aman Sharma
  • Patent number: 10072763
    Abstract: A double-piston-effect valve includes two valve seats symmetrically arranged in two valve endcaps at two sides, respectively. A piston ring is arranged on a rear of each of the valve seats, an inner O-ring groove is provided in the piston ring along an inner circumferential direction, an outer O-ring groove is arranged in the piston ring along an outer circumferential direction, an O-ring is fitted in each of the inner O-ring groove and the outer O-ring groove, and two semi-circular notches are symmetrically provided in a protruding portion of the piston ring.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: September 11, 2018
    Assignee: FORTUNE MFG. CO., LTD.
    Inventors: Jerome Chin Lung Chen, Michael Qiang Li
  • Patent number: 9933083
    Abstract: A flow rate control valve in which a valve body can be assembled and removed to a driving source. Where a valve body is assembled to a motor, a moving member is screwed to one end of a rotating shaft, the moving member is inserted into the valve member, the valve member is abutted on a locking portion, the valve member is prevented from coming off from the moving member, the valve member is disposed to an energizing member provided in the body, and the valve body can be assembled to the motor. Where the valve body is removed, the valve member prevented from coming off is pulled out from the body with the moving member, the valve member is removed from the moving member by releasing coming-off prevention of the valve member, further the moving member is removed from the rotating shaft, and the valve body can be removed.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: April 3, 2018
    Inventor: Masayoshi Sakaguchi
  • Patent number: 9927043
    Abstract: Fluid control valve including a valve body and an energizing member. The body is engaged with one end of a rotating shaft and moves along an axial direction of the shaft based on shaft rotation. The body opens and closes a first opening by the outer periphery, and one end comes into contact with and separates from a second opening. The member energizes the body on another end side of the shaft. A portion abutting on the second opening and a flow passage in which a fluid flows are at the one end of the body in the case where the first opening is fully closed. Since a valve-closed position of the body can be secured, and fluid flows in the flow passage, when a low flow rate is controlled, a stable flow rate is secured without closing the second opening which is a suction port in a valve-closed position.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: March 27, 2018
    Inventor: Masayoshi Sakaguchi
  • Patent number: 9505982
    Abstract: A seat system for a coke drum deheading valve can include a groove in the surface of the seat for supplying a lubricant to the surface of the seat. Various channels can be formed in the body of the seat that connect to the groove. In this way, lubricant can be flowed through the channels and into the groove to provide lubrication between the surface of the seat and the blind. The seat system can also include a split ring packing gland to facilitate the formation of a seal within the deheading valve. The split ring packing gland can be used to retain and compress packing positioned between a retaining ring and a dynamic seat such that when the packing is compressed, an improved seal is formed. By improving the seal, less steam can be required during the delayed coking process thereby increasing the efficiency of the system.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: November 29, 2016
    Assignee: DeltaValve, LLC
    Inventor: Ruben F. Lah
  • Patent number: 9498592
    Abstract: A patient interface system for delivering a gas to a patient includes a patient interface device that includes at least one inhalation valve and at least one exhalation valve. The system also includes a venturi device that has at least one port for connection to a gas source. The venturi device has at least one primary air entrainment window and at least one secondary air entrainment window which is downstream of the at least one primary air entrainment window. The inhalation valve is disposed between: (1) the main body and (2) the primary and secondary air entrainment windows of the venturi device. At least one of the primary air entrainment window and secondary air entrainment window includes a means for closing the respective window, thereby changing a degree at which the respective window is open and changing a flow rate of the air flowing through the respective window.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: November 22, 2016
    Inventors: Sunil Kumar Dhuper, Greg Marler
  • Publication number: 20140130888
    Abstract: An intelligent condensate management system for purging and cleaning an air conditioning condensate drainage system, the intelligent condensate management system comprises a housing, the housing having an inlet and an outlet; a primary condensate flow line providing a flow path between the housing inlet and outlet, the primary condensate flow line having a check valve; a flush line providing a flow path between the housing inlet and outlet parallel to the primary condensate flow line, the flush line having a pump, wherein an inlet to the flush line is connected to a lower portion of the housing inlet; a logic panel for actuating the pump between a standby mode and a flushing mode; wherein the check valve is configured to allow flow from the housing inlet to the housing outlet; wherein actuating the pump to a flushing mode causes the check valve to close. Also described are methods to flush a condensate drain system.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 15, 2014
    Applicant: Plexaire LLC
    Inventors: Stewart Kaiser, William G. Williams
  • Patent number: 8616233
    Abstract: A typical rotary face seal employs a seal ring rotating relative to a sealing surface and also employs means to urge the seal ring towards the sealing surface in order to effect a seal. The seal ring may itself comprise a seal face bonded to a backing ring. In certain applications, the seal face may deform significantly as a result of the temperature variations experienced and an undesirable crowning of the seal face may occur. Such crowning may be reduced by employing an improved seal ring with anti-crowning features in which the thickness of an edge of the seal face is different from that in the middle of the seal face, or in which a relief slot is employed in the seal face. The improved seal ring is particularly suited for rotary face seals used in a rotary valve in a rotary gas separation device.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: December 31, 2013
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Christopher R. McLean, Michel P. LeBlanc, Michael J. McKerrow, Bowie G. Keefer, Xiang Lu Kong, Alan O. Lebeck
  • Patent number: 8127795
    Abstract: A diverter damper seal land for installation in a flue gas duct defined by a casing wall, the diverter damper seal land includes: a front seal land and a rear seal land, the front seal land is mountable in the duct by a connection between the base edge and the casing wall and the rear seal land is connected at its base edge to the inner edge of the front seal land and spaced back and radially inwardly from the front seal such that it protrudes radially inwardly behind the front seal land. Another diverter damper seal land assembly includes: a seal land including a front seal land and a rear seal land; a first gusset; and a second gusset spaced from the first gusset, the first and second gussets connected to the casing wall and positioned at the back side of the front seal land to support the seal land in an operative position in the duct.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: March 6, 2012
    Assignee: Atco Structures & Logistics Ltd.
    Inventors: John T. Buttell, Edward P. Chan, Donald Robert Gabriel, Zhen Hu, Zoran Nikodinoski
  • Patent number: 7007711
    Abstract: The invention relates to a dispersing device wherein the dispersed material has a variable throughput comprising a jet disperser which comprises at least one inlet for the materials to be dispersed, a chamber with a multiciplicity of openings arranged in rows along the chamber wall, which lead into an outlet chamber, and an outlet for the finally dispersed material, wherein the chamber comprises a displaceably mounted piston which, depending on its position within the chamber, partially or completely shuts off a specific number of the openings for the passage of the flow os dispersed material.
    Type: Grant
    Filed: July 4, 2000
    Date of Patent: March 7, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Klinksiek, Dieter Schleenstein, Wieland Hovestadt, Michael vom Felde
  • Patent number: 6698444
    Abstract: In order to free a seized valve, an inspection port is formed in a wall of the valve body and the areas where the valve is seized are determined. One or more injection ports are formed in the valve body adjacent to the seized portions of the valve, pressurized fluid (preferably an insoluble lubricant having a very high cone penetration) is injected through the or each injection port and the injection ports are then closed.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: March 2, 2004
    Inventor: Robert Peter Enston
  • 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