Springs for ring valves

Patents Grantslast 30 patents

  • Information Patent Grant

    Gas purge port

    • Patent number 11,448,330
    • Issue date Sep 20, 2022
    • Miraial Co., Ltd.
    • Chiaki Matsutori
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dual disc non-slam nozzle check valve

    • Patent number 11,236,837
    • Issue date Feb 1, 2022
    • Oceaneering International, Inc.
    • Nicholas Willem Kaars-Sijpesteijn
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Check valve assembly

    • Patent number 11,054,048
    • Issue date Jul 6, 2021
    • Ohlins Racing AB
    • Erik Hansson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Annular valve and valve body for annular valve

    • Patent number 11,041,572
    • Issue date Jun 22, 2021
    • Masaru Fujinami
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Check valve assembly

    • Patent number 10,851,903
    • Issue date Dec 1, 2020
    • Ohlins Racing AB
    • Erik Hansson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Nozzle check valve

    • Patent number 10,837,564
    • Issue date Nov 17, 2020
    • Goodwin PLC
    • Christian Durst
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Bi-directional inline check valve

    • Patent number 10,830,365
    • Issue date Nov 10, 2020
    • Hamilton Sundstrand Corporation
    • Navaneethakrishnan Pandian
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Wall hydrant with integral shut-off valve

    • Patent number 10,017,921
    • Issue date Jul 10, 2018
    • Jay R. Smith Manufacturing Company
    • William Anthony Stanaland
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Oscillating pressure in a finite volume

    • Patent number 9,874,288
    • Issue date Jan 23, 2018
    • Patrick Dean Cummins
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    Differential pressure valve with reduced spring-surge and method fo...

    • Patent number 9,874,286
    • Issue date Jan 23, 2018
    • Riccardo Bagagli
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Automatic valve with a spring holder ring

    • Patent number 9,765,770
    • Issue date Sep 19, 2017
    • Nuovo Pignone SRL
    • Alberto Babbini
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Check valve for spray nozzle and nozzle tube

    • Patent number 9,377,115
    • Issue date Jun 28, 2016
    • Lechler GmbH
    • Juergen Frick
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Piston pump for delivering fluids and associated vehicle brake system

    • Patent number 9,366,249
    • Issue date Jun 14, 2016
    • Robert Bosch GmbH
    • Oliver Gaertner
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Differential pressure valve with parallel biasing springs and metho...

    • Patent number 9,297,373
    • Issue date Mar 29, 2016
    • Nuovo Pignone S.p.A.
    • Riccardo Bagagli
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compressor inlet valve

    • Patent number 5,785,081
    • Issue date Jul 28, 1998
    • Westinghouse Air Brake Company
    • Julie A. Krawczyk
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method of injection molding a plastic plate

    • Patent number 5,100,606
    • Issue date Mar 31, 1992
    • Dresser Industries, Inc.
    • Derek Woollatt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Linear flow turn down valve

    • Patent number 5,009,393
    • Issue date Apr 23, 1991
    • Harper-Wyman Company
    • Dale A. Massey
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of making a flat spring compressor valve

    • Patent number 4,984,361
    • Issue date Jan 15, 1991
    • Dresser Industries
    • Derek Woollatt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Check valve

    • Patent number 4,964,423
    • Issue date Oct 23, 1990
    • Nupro Company
    • Theodore J. Gausman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compressor valve with flat spring

    • Patent number 4,913,187
    • Issue date Apr 3, 1990
    • Dresser Industries
    • Derek Woollatt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Compressor valve with flat spring

    • Patent number 4,889,156
    • Issue date Dec 26, 1989
    • Dresser Industries, Inc.
    • Derek Woolatt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Adjustable compressor valve which can accommodate changing operatin...

    • Patent number 4,869,289
    • Issue date Sep 26, 1989
    • Hoerbiger Ventilwerke Aktiengesellschaft
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Check valve

    • Patent number 4,856,555
    • Issue date Aug 15, 1989
    • Nupro Company
    • Theodore J. Gausman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Adjustable compressor valve which can accommodate changing operatin...

    • Patent number 4,799,507
    • Issue date Jan 24, 1989
    • Hoerbiger Ventilwerke Aktiengesellschaft
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3895647

    • Patent number 3,895,647
    • Issue date Jul 22, 1975
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3805827

    • Patent number 3,805,827
    • Issue date Apr 23, 1974
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3804114

    • Patent number 3,804,114
    • Issue date Apr 16, 1974
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3786834

    • Patent number 3,786,834
    • Issue date Jan 22, 1974
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3591162

    • Patent number 3,591,162
    • Issue date Jul 6, 1971
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3589703

    • Patent number 3,589,703
    • Issue date Jun 29, 1971
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    GAS PURGE PORT

    • Publication number 20200386334
    • Publication date Dec 10, 2020
    • MIRAIAL CO., LTD.
    • Chiaki MATSUTORI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    ANNULAR VALVE AND VALVE BODY FOR ANNULAR VALVE

    • Publication number 20200370668
    • Publication date Nov 26, 2020
    • MITSUI E&S MACHINERY CO., LTD.
    • Masaru FUJINAMI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    DUAL DISC NON-SLAM NOZZLE CHECK VALVE

    • Publication number 20200355283
    • Publication date Nov 12, 2020
    • OCEANEERING INTERNATIONAL, INC.
    • Nicholas Willem Kaars-Sijpesteijn
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    BI-DIRECTIONAL INLINE CHECK VALVE

    • Publication number 20190128436
    • Publication date May 2, 2019
    • Goodrich Aerospace Services Private Limited
    • Navaneethakrishnan Pandian
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    CHECK VALVE ASSEMBLY

    • Publication number 20190085929
    • Publication date Mar 21, 2019
    • Ohlins Racing AB
    • Erik HANSSON
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    NOZZLE CHECK VALVE

    • Publication number 20180245702
    • Publication date Aug 30, 2018
    • GOODWIN PLC
    • Christian DURST
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    AUTOMATIC VALVE WITH A SPRING HOLDER RING

    • Publication number 20150044081
    • Publication date Feb 12, 2015
    • Nuovo Pignone Srl
    • Alberto Babbini
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Piston Pump for Delivering Fluids and Associated Vehicle Brake System

    • Publication number 20140147316
    • Publication date May 29, 2014
    • ROBERT BOSCH GmbH
    • Oliver Gaertner
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    DIFFERENTIAL PRESSURE VALVE WITH PARALLEL BIASING SPRINGS AND METHO...

    • Publication number 20140014190
    • Publication date Jan 16, 2014
    • Riccardo Bagagli
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DIFFERENTIAL PRESSURE VALVE WITH REDUCED SPRING-SURGE AND METHOD FO...

    • Publication number 20130019955
    • Publication date Jan 24, 2013
    • Riccardo BAGAGLI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CHECK VALVE FOR SPRAY NOZZLE AND NOZZLE TUBE

    • Publication number 20120298780
    • Publication date Nov 29, 2012
    • Juergen Frick
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Automatic annular valve

    • Publication number 20080149194
    • Publication date Jun 26, 2008
    • Bernhard Spiegl
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...