Helical

Patents Grantslast 30 patents

  • Information Patent Grant

    Evaporator coil

    • Patent number 6,158,235
    • Issue date Dec 12, 2000
    • Lancer Partnership, Ltd.
    • John Thomas Hawkins
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Method of servicing a helical coil heat exchanger with removable en...

    • Patent number 6,102,106
    • Issue date Aug 15, 2000
    • Flowserve Management Company
    • Frank E. Manning
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Helical coil heat exchanger with removable end plates

    • Patent number 6,076,597
    • Issue date Jun 20, 2000
    • Flowserve Management Company
    • Frank E. Manning
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Component configuration for enhancing dispenser serviceability

    • Patent number 5,664,436
    • Issue date Sep 9, 1997
    • Lancer Corporation
    • John Thomas Hawkins
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Shell and coil heat exchanger

    • Patent number 4,865,124
    • Issue date Sep 12, 1989
    • Jack C. Dempsey
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Tube-type heat exchanger

    • Patent number 4,790,371
    • Issue date Dec 13, 1988
    • Daniel Zundel
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger and method of making same

    • Patent number 4,557,323
    • Issue date Dec 10, 1985
    • Electro-Magic, Inc.
    • Brian E. Hardy
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Fired heater for coal liquefaction process

    • Patent number 4,488,594
    • Issue date Dec 18, 1984
    • International Coal Refining Company
    • David H. S. Ying
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat exchanger apparatus

    • Patent number 4,210,203
    • Issue date Jul 1, 1980
    • Aktiebolaget Atomenergi
    • Peter H. E. Margen
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heating system

    • Patent number 4,079,778
    • Issue date Mar 21, 1978
    • George S. Trump
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Fuel saving device

    • Patent number 3,970,142
    • Issue date Jul 20, 1976
    • Joseph Troiano
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3916991

    • Patent number 3,916,991
    • Issue date Nov 4, 1975
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3349842

    • Patent number 3,349,842
    • Issue date Oct 31, 1967
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1944894

    • Patent number 1,944,894
    • Issue date Jan 30, 1934
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    1938589

    • Patent number 1,938,589
    • Issue date Dec 12, 1933
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1921259

    • Patent number 1,921,259
    • Issue date Aug 8, 1933
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1820318

    • Patent number 1,820,318
    • Issue date Aug 25, 1931
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    1717490

    • Patent number 1,717,490
    • Issue date Jun 18, 1929
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1716333

    • Patent number 1,716,333
    • Issue date Jun 4, 1929
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1581920

    • Patent number 1,581,920
    • Issue date Apr 20, 1926
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    1504732

    • Patent number 1,504,732
    • Issue date Aug 12, 1924
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1499105

    • Patent number 1,499,105
    • Issue date Jun 24, 1924
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    1398985

    • Patent number 1,398,985
    • Issue date Dec 6, 1921
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1397621

    • Patent number 1,397,621
    • Issue date Nov 22, 1921
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    1264442

    • Patent number 1,264,442
    • Issue date Apr 30, 1918
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1068742

    • Patent number 1,068,742
    • Issue date Jul 29, 1913
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    777083

    • Patent number 777,083
    • Issue date Dec 13, 1904
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    757846

    • Patent number 757,846
    • Issue date Apr 19, 1904
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    672555

    • Patent number 672,555
    • Issue date Apr 23, 1901
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    209420

    • Patent number 209,420
    • Issue date Oct 29, 1878
    • F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents