Patents by Inventor Charles E. Elgin

Charles E. Elgin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Winch with free-wheeling drum
    Patent number: 4078770
    Abstract: A winch embodied as a logging or towing winch for vehicles such as a log skidder, the winch including a rotatable drum and a power train having an input member coupled to an engine of the vehicle, a normally disengaged clutch providing a selective coupling between the input member and an intermediate drive assembly, a normally engaged friction brake being selectively disengageable to permit rotation of the intermediate drive assembly and a jaw-type clutch normally providing a positive coupling between the intermediate drive assembly and the winch drum, the jaw clutch being selectively disengageable to permit free-wheeling of the drum.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: March 14, 1978
    Assignee: Caterpillar Tractor Co.
    Inventors: Lyle F. Yates, Ray Shipman, Charles E. Elgin