the rotary cylinder being provided with only one piston, reciprocating within the cylinder

Patents Grantslast 30 patents

  • Information Patent Grant

    Spin pump with spun-epicyclic geometry having piston bores capped w...

    • Patent number 10,465,669
    • Issue date Nov 5, 2019
    • Chart Inc.
    • John Corey
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Spin pump with spun-epicyclic geometry

    • Patent number 9,771,931
    • Issue date Sep 26, 2017
    • Chart Inc.
    • John Corey
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Two rotor sliding vane compressor

    • Patent number 5,681,153
    • Issue date Oct 28, 1997
    • Carrier Corporation
    • Roger C. Weatherston
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Two rotor sliding vane compressor

    • Patent number 5,567,139
    • Issue date Oct 22, 1996
    • Roger C. Weatherston
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary piston machines with a wear-resistant driving mechanism

    • Patent number 5,249,506
    • Issue date Oct 5, 1993
    • Wolfhart Willimczik
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Pump having piston and cylinder rotatable respectively about spaced...

    • Patent number 4,902,208
    • Issue date Feb 20, 1990
    • R. A. Ray Wood
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hydraulic pump

    • Patent number 4,892,468
    • Issue date Jan 9, 1990
    • Akebono Brake Industry Co., Ltd.
    • Toshifumi Maehara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3883925

    • Patent number 3,883,925
    • Issue date May 20, 1975
    • A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH
  • Information Patent Grant

    3294032

    • Patent number 3,294,032
    • Issue date Dec 27, 1966
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3056356

    • Patent number 3,056,356
    • Issue date Oct 2, 1962
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3012515

    • Patent number 3,012,515
    • Issue date Dec 12, 1961
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    2684038

    • Patent number 2,684,038
    • Issue date Jul 20, 1954
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2651999

    • Patent number 2,651,999
    • Issue date Sep 15, 1953
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    2648289

    • Patent number 2,648,289
    • Issue date Aug 11, 1953
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2623472

    • Patent number 2,623,472
    • Issue date Dec 30, 1952
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    2564483

    • Patent number 2,564,483
    • Issue date Aug 14, 1951
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2349773

    • Patent number 2,349,773
    • Issue date May 23, 1944
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2337427

    • Patent number 2,337,427
    • Issue date Dec 21, 1943
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2303969

    • Patent number 2,303,969
    • Issue date Dec 1, 1942
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2288833

    • Patent number 2,288,833
    • Issue date Jul 7, 1942
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2277991

    • Patent number 2,277,991
    • Issue date Mar 31, 1942
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2248452

    • Patent number 2,248,452
    • Issue date Jul 8, 1941
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2235579

    • Patent number 2,235,579
    • Issue date Mar 18, 1941
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2121110

    • Patent number 2,121,110
    • Issue date Jun 21, 1938
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1976642

    • Patent number 1,976,642
    • Issue date Oct 9, 1934
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1936614

    • Patent number 1,936,614
    • Issue date Nov 28, 1933
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1918408

    • Patent number 1,918,408
    • Issue date Jul 18, 1933
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1910876

    • Patent number 1,910,876
    • Issue date May 23, 1933
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1909046

    • Patent number 1,909,046
    • Issue date May 16, 1933
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1897190

    • Patent number 1,897,190
    • Issue date Feb 14, 1933
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents