the generator or boiler uses an inert gas as pressure equalizing medium

Patents Grantslast 30 patents

  • Information Patent Grant

    Absorption refrigerating apparatus constituted to prevent corrosion...

    • Patent number 6,282,918
    • Issue date Sep 4, 2001
    • Aktiebolaget Electrolux
    • Per Levin
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Expeller with a gas-bubble pump

    • Patent number 5,291,754
    • Issue date Mar 8, 1994
    • Hans Stierlin
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    2269099

    • Patent number 2,269,099
    • Issue date Jan 6, 1942
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    2203074

    • Patent number 2,203,074
    • Issue date Jun 4, 1940
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    1960809

    • Patent number 1,960,809
    • Issue date May 29, 1934
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    1950703

    • Patent number 1,950,703
    • Issue date Mar 13, 1934
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    1858841

    • Patent number 1,858,841
    • Issue date May 17, 1932
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    1729355

    • Patent number 1,729,355
    • Issue date Sep 24, 1929
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...