Screw-actuated differential valves

Patents Grantslast 30 patents

  • Information Patent Grant

    Valve

    • Patent number 9,477,234
    • Issue date Oct 25, 2016
    • KOVEA CO., LTD.
    • Sang Hyun Kim
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Rechargeable subsea force generating device and method

    • Patent number 8,220,773
    • Issue date Jul 17, 2012
    • Hydril USA Manufacturing LLC
    • Ryan Gustafson
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Flow control valve for refrigeration system

    • Patent number 7,240,694
    • Issue date Jul 10, 2007
    • Danfoss A/S
    • Hans Christian Johnsen
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Valve with pressurization rate reduction device

    • Patent number 6,957,661
    • Issue date Oct 25, 2005
    • Harsco Technologies Corporation
    • Jeffre Allen Borton
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Surge prevention device

    • Patent number 6,901,962
    • Issue date Jun 7, 2005
    • Allied Healthcare Products, Inc.
    • Kevin D. Kroupa
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Surge prevention device

    • Patent number 6,622,743
    • Issue date Sep 23, 2003
    • Allied Healthcare Products, Inc.
    • Gabriel S. Kohn
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Anesthesia machine having proportion limiting control system

    • Patent number 4,266,573
    • Issue date May 12, 1981
    • Airco, Inc.
    • Robert E. Braatz
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    3924659

    • Patent number 3,924,659
    • Issue date Dec 9, 1975
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3282292

    • Patent number 3,282,292
    • Issue date Nov 1, 1966
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3117595

    • Patent number 3,117,595
    • Issue date Jan 14, 1964
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2744542

    • Patent number 2,744,542
    • Issue date May 8, 1956
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2643675

    • Patent number 2,643,675
    • Issue date Jun 30, 1953
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2563955

    • Patent number 2,563,955
    • Issue date Aug 14, 1951
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2473223

    • Patent number 2,473,223
    • Issue date Jun 14, 1949
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2446626

    • Patent number 2,446,626
    • Issue date Aug 10, 1948
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2345984

    • Patent number 2,345,984
    • Issue date Apr 4, 1944
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2079743

    • Patent number 2,079,743
    • Issue date May 11, 1937
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2077972

    • Patent number 2,077,972
    • Issue date Apr 20, 1937
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1875679

    • Patent number 1,875,679
    • Issue date Sep 6, 1932
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    1875780

    • Patent number 1,875,780
    • Issue date Sep 6, 1932
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    1867004

    • Patent number 1,867,004
    • Issue date Jul 12, 1932
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1855264

    • Patent number 1,855,264
    • Issue date Apr 26, 1932
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1613183

    • Patent number 1,613,183
    • Issue date Jan 4, 1927
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1559044

    • Patent number 1,559,044
    • Issue date Oct 27, 1925
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1495964

    • Patent number 1,495,964
    • Issue date May 27, 1924
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1432527

    • Patent number 1,432,527
    • Issue date Oct 17, 1922
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1420662

    • Patent number 1,420,662
    • Issue date Jun 27, 1922
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1420663

    • Patent number 1,420,663
    • Issue date Jun 27, 1922
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1230499

    • Patent number 1,230,499
    • Issue date Jun 19, 1917
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1147399

    • Patent number 1,147,399
    • Issue date Jul 20, 1915
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Rechargeable Subsea Force Generating Device and Method

    • Publication number 20100155072
    • Publication date Jun 24, 2010
    • Ryan Gustafson
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Flow control valve for refrigeration system

    • Publication number 20060005890
    • Publication date Jan 12, 2006
    • Danfoss A/S
    • Hans Christian Johnsen
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Surge prevention device

    • Publication number 20020056479
    • Publication date May 16, 2002
    • Kevin D. Kroupe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...