Liquid seals

Patents Grantslast 30 patents

  • Information Patent Grant

    Reciprocation apparatus with sealing mechanism

    • Patent number 4,870,821
    • Issue date Oct 3, 1989
    • Matsushita Electric Industrial Co., Ltd.
    • Terumaru Harada
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Rod seal device for stirling engines

    • Patent number 4,694,707
    • Issue date Sep 22, 1987
    • Kabushiki Kaisha Riken
    • Daisaku Kobayashi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Rod seal device for stirling engines

    • Patent number 4,691,591
    • Issue date Sep 8, 1987
    • Kabushiki Kaisha Riken
    • Daisaku Kobayashi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Seal for piston rod of Stirling engine

    • Patent number 4,564,202
    • Issue date Jan 14, 1986
    • Aisin Seiki Kabushiki Kaisha
    • Yutaka Momose
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Stirling cycle engine having shaft seal means

    • Patent number 4,483,141
    • Issue date Nov 20, 1984
    • Kabushiki Kaisha Riken
    • Daisaku Kobayashi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Rolling diaphragm seal between two relatively moving parts

    • Patent number 3,934,480
    • Issue date Jan 27, 1976
    • U.S. Philips Corporation
    • Anton Marie Nederlof
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3798895

    • Patent number 3,798,895
    • Issue date Mar 26, 1974
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3673927

    • Patent number 3,673,927
    • Issue date Jul 4, 1972
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3667349

    • Patent number 3,667,349
    • Issue date Jun 6, 1972
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3667348

    • Patent number 3,667,348
    • Issue date Jun 6, 1972
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    3626811

    • Patent number 3,626,811
    • Issue date Dec 14, 1971
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3547005

    • Patent number 3,547,005
    • Issue date Dec 15, 1970
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    3492813

    • Patent number 3,492,813
    • Issue date Feb 3, 1970
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3396976

    • Patent number 3,396,976
    • Issue date Aug 13, 1968
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    3339464

    • Patent number 3,339,464
    • Issue date Sep 5, 1967
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    3318089

    • Patent number 3,318,089
    • Issue date May 9, 1967
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3302392

    • Patent number 3,302,392
    • Issue date Feb 7, 1967
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES