of the tips of rotor blades

Patents Grantslast 30 patents

  • Information Patent Grant

    Centrifugally driven aerodynamic rotor blade brake assembly

    • Patent number 9,470,209
    • Issue date Oct 18, 2016
    • Deka Products Limited Partnership
    • Dean Kamen
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Centrifugally driven aerodynamic rotor blade brake assembly

    • Patent number 8,714,925
    • Issue date May 6, 2014
    • Deka Products Limited Partnership
    • Dean Kamen
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Wind turbine blade tip brake apparatus and method

    • Patent number 8,403,641
    • Issue date Mar 26, 2013
    • Paul Lewis Gay
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Rotor blade

    • Patent number 5,730,581
    • Issue date Mar 24, 1998
    • Deutsche Forschungsanstalt fur Luft-und Raumfahrt e.V.
    • Andreas Buter
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Aerodynamic brake on a wind rotor for a windmill

    • Patent number 5,269,652
    • Issue date Dec 14, 1993
    • Helge Petersen
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Control of a wind turbine

    • Patent number 5,096,378
    • Issue date Mar 17, 1992
    • Howden Wind Turbines Limited
    • Peter M. Jamieson
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Tip brake mechanism for a wind generator blade

    • Patent number 4,952,119
    • Issue date Aug 28, 1990
    • Phoenix Industries of Crookston Ltd.
    • Richard A. Widseth
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wind mill wing with air brake

    • Patent number 4,867,642
    • Issue date Sep 19, 1989
    • Danregn Vindkraft A/S
    • Soren Vinther
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wind turbine operated electrical generator system

    • Patent number 4,748,339
    • Issue date May 31, 1988
    • James Howden & Company Limited
    • Peter M. Jamieson
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Hydraulic control device for wind turbine

    • Patent number 4,715,782
    • Issue date Dec 29, 1987
    • Fayette Manufacturing Corp.
    • David M. Shimmel
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wind turbine

    • Patent number 4,710,101
    • Issue date Dec 1, 1987
    • James Howden & Company Limited
    • Peter M. Jamieson
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wind turbines

    • Patent number 4,575,309
    • Issue date Mar 11, 1986
    • James Howden & Company Ltd.
    • Allan W. Brown
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wind powered system for generating electricity

    • Patent number 4,565,929
    • Issue date Jan 21, 1986
    • The Boeing Company
    • Joseph M. Baskin
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wind turbine rotor

    • Patent number 4,557,666
    • Issue date Dec 10, 1985
    • The Boeing Company
    • Joseph M. Baskin
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Windmill speed limiting system utilizing hysteresis

    • Patent number 4,374,631
    • Issue date Feb 22, 1983
    • Fayette Manufacturing Corporation
    • Dale R. Barnes
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wind turbine rotor speed control system

    • Patent number 4,355,955
    • Issue date Oct 26, 1982
    • The Boeing Company
    • Adrian V. Kisovec
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Windmill

    • Patent number 4,319,865
    • Issue date Mar 16, 1982
    • Joseph G. Richard
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Wind rotor automatic air brake

    • Patent number 4,180,372
    • Issue date Dec 25, 1979
    • Grumman Corporation
    • Joseph Lippert
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Adjustable windmill

    • Patent number 4,111,601
    • Issue date Sep 5, 1978
    • Joseph G. Richard
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Windmill blade and processes related thereto

    • Patent number 4,003,676
    • Issue date Jan 18, 1977
    • Thomas E. Sweeney
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3874816

    • Patent number 3,874,816
    • Issue date Apr 1, 1975
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    3038543

    • Patent number 3,038,543
    • Issue date Jun 12, 1962
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    2126202

    • Patent number 2,126,202
    • Issue date Aug 9, 1938
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    2037528

    • Patent number 2,037,528
    • Issue date Apr 14, 1936
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents