TREA

Michael J. Purvis

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  • St. Louis, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Leak detection and shut-off apparatus
    • Patent number 6,186,162
    • Issue date Feb 13, 2001
    • Michael J. Purvis
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Swivel connection
    • Patent number 5,636,877
    • Issue date Jun 10, 1997
    • Dyna Controls Corporation
    • Michael J. Purvis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Quick-connect-disconnect non-mar coupling
    • Patent number 5,451,031
    • Issue date Sep 19, 1995
    • Dynaquip Controls Corporation
    • Michael J. Purvis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Manifold fitting for a compressed air tank
    • Patent number 4,768,550
    • Issue date Sep 6, 1988
    • Control Devices, Incorporated
    • Joseph L. Krechel
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Manifold fitting for a compressed air tank
    • Patent number 4,705,076
    • Issue date Nov 10, 1987
    • Control Devices, Incorporated
    • Joseph L. Krechel
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Manifold fitting for a compressed air tank
    • Patent number 4,616,677
    • Issue date Oct 14, 1986
    • Control Devices, Incorporated
    • Joseph L. Krechel
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Spring-loaded valve
    • Patent number 4,612,962
    • Issue date Sep 23, 1986
    • Control Devices, Incorporated
    • Michael J. Purvis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Unloader/check valve
    • Patent number 4,321,940
    • Issue date Mar 30, 1982
    • Control Devices, Incorporated
    • Joseph L. Krechel
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Combined air compressor tank manifold and valve
    • Patent number D251011
    • Issue date Feb 6, 1979
    • Control Devices, Incorporated
    • Joseph L. Krechel
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Manifold assembly for compressed air storage tank or the like
    • Patent number 4,120,319
    • Issue date Oct 17, 1978
    • Control Devices, Incorporated
    • Joseph L. Krechel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Air chuck
    • Patent number 4,088,147
    • Issue date May 9, 1978
    • Control Devices, Incorported
    • Joseph L. Krechel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball valve
    • Patent number 4,076,211
    • Issue date Feb 28, 1978
    • Control Devices, Incorporated
    • Joseph L. Krechel
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...