by generating oil foam

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making foam in an energy efficient compressor

    • Patent number 5,499,908
    • Issue date Mar 19, 1996
    • Tecumseh Products Company
    • Raymond J. Schmitz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method and apparatus for acoustic attenuation in variable speed com...

    • Patent number 5,077,981
    • Issue date Jan 7, 1992
    • Carrier Corporation
    • Richard E. de la Rosa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Refrigerant injection into oil for sound reduction

    • Patent number 5,005,376
    • Issue date Apr 9, 1991
    • Carrier Corporation
    • Howard H. Fraser
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Refrigerant injection into oil for sound reduction

    • Patent number 4,907,414
    • Issue date Mar 13, 1990
    • Carrier Corporation
    • Howard H. Fraser
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Noise reduction using suction gas to foam oil

    • Patent number 4,718,829
    • Issue date Jan 12, 1988
    • American Standard Inc.
    • Wei-Ming W. Ma
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil stirrer for refrigeration compressor

    • Patent number 4,127,994
    • Issue date Dec 5, 1978
    • White-Westinghouse Corporation
    • Ralph E. Niven
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Noise dampening means in refrigeration motor-compressor units and m...

    • Patent number 4,063,853
    • Issue date Dec 20, 1977
    • Carrier Corporation
    • Carl J. De Groat
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3792755

    • Patent number 3,792,755
    • Issue date Feb 19, 1974
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3614384

    • Patent number 3,614,384
    • Issue date Oct 19, 1971
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3480205

    • Patent number 3,480,205
    • Issue date Nov 25, 1969
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    3182901

    • Patent number 3,182,901
    • Issue date May 11, 1965
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    3155312

    • Patent number 3,155,312
    • Issue date Nov 3, 1964
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3147914

    • Patent number 3,147,914
    • Issue date Sep 8, 1964
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3066857

    • Patent number 3,066,857
    • Issue date Dec 4, 1962
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2990111

    • Patent number 2,990,111
    • Issue date Jun 27, 1961
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...