Patents by Inventor Graeme M. Cundy

Graeme M. Cundy 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).

  • Patent number: 4974467
    Abstract: A multispeed winch or gear box wherein an axially-movable gear located on a shaft parallel to the drive shaft is movable by operation of a lift mechanism to be in a first position in engagement with a specific gear train or in a second position out of engagement with the said gear train. Further, the winch or gear box can have a gear on the drive shaft with a lip or shoulder which can retain the axially-movable gear in the upper or first position after the lift mechanism has moved the axially movable gear to the first position, and the lift mechanism has been withdrawn. This arrangement will permit the gear box or winch to automatically shift from first speed to second speed to third speed upon reversal of the drive shaft rotation.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: December 4, 1990
    Assignee: Maxwell Marine Limited
    Inventor: Graeme M. Cundy
  • Patent number: 4974814
    Abstract: A multispeed winch or gear box wherein an axially-movable gear located on a shaft parallel to the drive shaft is movable by operation of a lift mechanism to be in a first position in engagement with a specific gear train or in a second position out of engagement with the gear train. Further, the winch or gear box can have a gear on the drive shaft with a lip or shoulder which can retain the axially-movable gear in the upper or first position after the lift mechanism has moved the axially movable gear to the first position, and the lift mechanism has been withdrawn. This arrangement will permit the gear box or winch to automatically shift from first speed to second speed to third speed upon reversal of the drive shaft rotation.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: December 4, 1990
    Assignee: Maxwell Marine Limited
    Inventor: Graeme M. Cundy
  • Patent number: D330962
    Type: Grant
    Filed: July 17, 1990
    Date of Patent: November 10, 1992
    Assignee: Maxwell Marine Limited
    Inventors: Graeme M. Cundy, Steven C. Nichols