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Cecil E. Covington

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  • Azle, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotor system vibration absorber
    • Patent number 7,153,094
    • Issue date Dec 26, 2006
    • Bell Helicopter Textron Inc.
    • Ajay Sehgal
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Multi-bladed tail rotor hub design for coriolis relief
    • Patent number 6,764,280
    • Issue date Jul 20, 2004
    • Bell Helicopter Textron Inc.
    • Ajay Sehgal
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Coupled aircraft rotor system
    • Patent number 6,616,095
    • Issue date Sep 9, 2003
    • Bell Helicopter Textron Inc.
    • Frank B. Stamps
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Rotor blade stowing system
    • Patent number 5,868,351
    • Issue date Feb 9, 1999
    • Bell Helicopter Textron Inc.
    • Frank B. Stamps
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Rotor system vibration absorber
    • Patent number 5,647,726
    • Issue date Jul 15, 1997
    • Bell Helicopter TEXTRON Inc.
    • Ajay Sehgal
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Yoke for helicopter rotor systems
    • Patent number 5,358,381
    • Issue date Oct 25, 1994
    • Bell Helicopter Textron Inc.
    • Cecil E. Covington
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Rotor blade
    • Patent number 5,074,753
    • Issue date Dec 24, 1991
    • Bell Helicopter Textron Inc.
    • Cecil E. Covington
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Apparatus and method for folding and locking rotor blades
    • Patent number 5,031,858
    • Issue date Jul 16, 1991
    • Bell Helicopter Textron, Inc.
    • Ernst C. Schellhase
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Soft inplane bearingless helicopter rotor
    • Patent number 4,427,340
    • Issue date Jan 24, 1984
    • Bell Helicopter Textron Inc.
    • Robert W. Metzger
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Bearingless tail rotor for helicopters
    • Patent number 4,306,837
    • Issue date Dec 22, 1981
    • Textron, Inc.
    • Vas H. Brogdon
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Tail rotor blade
    • Patent number 4,299,540
    • Issue date Nov 10, 1981
    • Textron Inc.
    • Cecil E. Covington
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Soft inplane helicopter rotor
    • Patent number 4,257,739
    • Issue date Mar 24, 1981
    • Textron, Inc.
    • Cecil E. Covington
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Helicopter blade folding system
    • Patent number 4,252,504
    • Issue date Feb 24, 1981
    • Textron, Inc.
    • Cecil E. Covington
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Helicopter blade structure
    • Patent number 4,120,610
    • Issue date Oct 17, 1978
    • Textron, Inc.
    • James L. Braswell
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Composite rotor blade
    • Patent number 4,083,656
    • Issue date Apr 11, 1978
    • Textron, Inc.
    • James L. Braswell
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Grip-yoke assembly with a redundant centrifugal load support
    • Patent number 3,942,910
    • Issue date Mar 9, 1976
    • Textron, Inc.
    • David E. Snyder
    • B64 - AIRCRAFT AVIATION COSMONAUTICS

Patents Applicationslast 30 patents