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  • CPC
  • Y10T137/2602
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YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10USPC classification Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION Y10T137/00Fluid handling

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Y10T137/2602Flapper
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Fluidic valve assemblies having improved fluidic valve mechanisms,...
    • Patent number 6,415,809
    • Issue date Jul 9, 2002
    • Ronald Louis Shellhause
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Apparatus and method for automatically disabling pressure relief va...
    • Patent number 5,669,405
    • Issue date Sep 23, 1997
    • Ames Company, Inc.
    • Lester B. Engelmann
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Servo valve
    • Patent number 5,150,876
    • Issue date Sep 29, 1992
    • Gerald W. Pickard
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Metering arrangement
    • Patent number 4,966,198
    • Issue date Oct 30, 1990
    • John L. Hartstone
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    3531936
    • Patent number 3,531,936
    • Issue date Oct 6, 1970
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3517687
    • Patent number 3,517,687
    • Issue date Jun 30, 1970
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3318321
    • Patent number 3,318,321
    • Issue date May 9, 1967
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    2813401
    • Patent number 2,813,401
    • Issue date Nov 19, 1957
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    2733903
    • Patent number 2,733,903
    • Issue date Feb 7, 1956
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    2646060
    • Patent number 2,646,060
    • Issue date Jul 21, 1953
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2152695
    • Patent number 2,152,695
    • Issue date Apr 4, 1939
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2037575
    • Patent number 2,037,575
    • Issue date Apr 14, 1936
    • G01 - MEASURING TESTING
  • Information Patent Grant

    1456391
    • Patent number 1,456,391
    • Issue date May 22, 1923
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    606053
    • Patent number 606,053
    • Issue date Jun 21, 1898
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    311145
    • Patent number 311,145
    • Issue date Jan 20, 1885
    • G01 - MEASURING TESTING
  • Information Patent Grant

    297087
    • Patent number 297,087
    • Issue date Apr 15, 1884
    • G01 - MEASURING TESTING
  • Information Patent Grant

    277189
    • Patent number 277,189
    • Issue date May 8, 1883
    • G01 - MEASURING TESTING
  • Information Patent Grant

    214004
    • Patent number 214,004
    • Issue date Apr 8, 1879
    • G01 - MEASURING TESTING
  • Information Patent Grant

    127009
    • Patent number 127,009
    • Issue date May 21, 1872
    • G01 - MEASURING TESTING
  • Information Patent Grant

    126330
    • Patent number 126,330
    • Issue date Apr 30, 1872
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    120925
    • Patent number 120,925
    • Issue date Nov 14, 1871
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    113829
    • Patent number 113,829
    • Issue date Apr 18, 1871
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...