Gas pressure controlled by amount of liquid in trap

Patents Grantslast 30 patents

  • Information Patent Grant

    3022549

    • Patent number 3,022,549
    • Issue date Feb 27, 1962
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    2647083

    • Patent number 2,647,083
    • Issue date Jul 28, 1953
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    2252687

    • Patent number 2,252,687
    • Issue date Aug 19, 1941
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    2155510

    • Patent number 2,155,510
    • Issue date Apr 25, 1939
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    2153117

    • Patent number 2,153,117
    • Issue date Apr 4, 1939
    • F22 - STEAM GENERATION
  • Information Patent Grant

    2136835

    • Patent number 2,136,835
    • Issue date Nov 15, 1938
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    1755317

    • Patent number 1,755,317
    • Issue date Apr 22, 1930
    • F22 - STEAM GENERATION
  • Information Patent Grant

    1636626

    • Patent number 1,636,626
    • Issue date Jul 19, 1927
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1605467

    • Patent number 1,605,467
    • Issue date Nov 2, 1926
    • F22 - STEAM GENERATION
  • Information Patent Grant

    1601478

    • Patent number 1,601,478
    • Issue date Sep 28, 1926
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1576608

    • Patent number 1,576,608
    • Issue date Mar 16, 1926
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    1477472

    • Patent number 1,477,472
    • Issue date Dec 11, 1923
    • F22 - STEAM GENERATION
  • Information Patent Grant

    1440197

    • Patent number 1,440,197
    • Issue date Dec 26, 1922
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1353332

    • Patent number 1,353,332
    • Issue date Sep 21, 1920
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    1122779

    • Patent number 1,122,779
    • Issue date Dec 29, 1914
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1121339

    • Patent number 1,121,339
    • Issue date Dec 15, 1914
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    982967

    • Patent number 982,967
    • Issue date Jan 31, 1911
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    971831

    • Patent number 971,831
    • Issue date Oct 4, 1910
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    789434

    • Patent number 789,434
    • Issue date May 9, 1905
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    484889

    • Patent number 484,889
    • Issue date Oct 25, 1892
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    394827

    • Patent number 394,827
    • Issue date Dec 18, 1888
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    190719

    • Patent number 190,719
    • Issue date May 15, 1877
    • E21 - EARTH DRILLING MINING