Inlet and outlet with concentric portions

Patents Grantslast 30 patents

  • Information Patent Grant

    Compact fan and impeller

    • Patent number 5,188,508
    • Issue date Feb 23, 1993
    • Comair Rotron, Inc.
    • Peter D. Scott
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mechanical pump equipment

    • Patent number 4,938,662
    • Issue date Jul 3, 1990
    • Hitachi, Ltd.
    • Shigehiro Shimoyashiki
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multiple discharge cylindrical pump collector

    • Patent number 4,874,575
    • Issue date Oct 17, 1989
    • Rockwell International Corporation
    • Charlton Dunn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fan unit for use with duct systems

    • Patent number 4,798,518
    • Issue date Jan 17, 1989
    • Wilhelm Gebhardt GmbH
    • Vinzenz Holzberger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Turbocooler with multistage turbine wheel

    • Patent number 4,792,278
    • Issue date Dec 20, 1988
    • Allied-Signal, Inc.
    • Terence P. Emerson
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Propulsion installation of air-cushion transport vehicle

    • Patent number 4,565,491
    • Issue date Jan 21, 1986
    • Donetsky Nauchno-Issledovatelsky Institut Komplexnoi Mekhanizatsii Shakht
    • Sergei K. Ivanov
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Centrifugal pump with deaeration chamber

    • Patent number 4,548,545
    • Issue date Oct 22, 1985
    • Dorr-Oliver Incorporated
    • Kenneth D. Lewis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Aero electro turbine

    • Patent number 4,398,096
    • Issue date Aug 9, 1983
    • Einar Faurholtz
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Fluid-flow machine

    • Patent number 4,293,278
    • Issue date Oct 6, 1981
    • Getewent Gesellschaft fur technische und Wissenschaftlichs Energieumsatzentwi...
    • Herbert Bachl
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Fluid flow machine

    • Patent number 4,278,397
    • Issue date Jul 14, 1981
    • Getwent Gesellschaft fur Technische und wissenschaftliche Energieumsatzehtwic...
    • Herbert Bachl
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Two-stage turbo compressor

    • Patent number 4,231,702
    • Issue date Nov 4, 1980
    • Borg-Warner Corporation
    • Sankaraiyer Gopalakrishnan
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gas compressor, and for use with a gas compressor: gear housing and...

    • Patent number 4,087,197
    • Issue date May 2, 1978
    • Ingersoll-Rand Company
    • Ronald L. Haugen
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Gas compressor

    • Patent number 4,010,016
    • Issue date Mar 1, 1977
    • Ingersoll-Rand Company
    • Ronald L. Haugen
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Means for preventing an engine turbocharger from being damaged by f...

    • Patent number 3,971,218
    • Issue date Jul 27, 1976
    • DeLaval Turbine Inc.
    • Michael Toth
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Geothermal energy system heat exchanger and control apparatus

    • Patent number 3,961,866
    • Issue date Jun 8, 1976
    • Sperry Rand Corporation
    • Kenneth E. Nichols
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3669563

    • Patent number 3,669,563
    • Issue date Jun 13, 1972
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3575524

    • Patent number 3,575,524
    • Issue date Apr 20, 1971
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3476488

    • Patent number 3,476,488
    • Issue date Nov 4, 1969
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3471080

    • Patent number 3,471,080
    • Issue date Oct 7, 1969
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3424372

    • Patent number 3,424,372
    • Issue date Jan 28, 1969
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3421704

    • Patent number 3,421,704
    • Issue date Jan 14, 1969
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    3355097

    • Patent number 3,355,097
    • Issue date Nov 28, 1967
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3307485

    • Patent number 3,307,485
    • Issue date Mar 7, 1967
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3232581

    • Patent number 3,232,581
    • Issue date Feb 1, 1966
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3218981

    • Patent number 3,218,981
    • Issue date Nov 23, 1965
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3193259

    • Patent number 3,193,259
    • Issue date Jul 6, 1965
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3045895

    • Patent number 3,045,895
    • Issue date Jul 24, 1962
    • G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
  • Information Patent Grant

    2934245

    • Patent number 2,934,245
    • Issue date Apr 26, 1960
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2890659

    • Patent number 2,890,659
    • Issue date Jun 16, 1959
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2782001

    • Patent number 2,782,001
    • Issue date Feb 19, 1957
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES