Patents by Inventor Christopher A. Hook

Christopher A. Hook 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).

  • Movable backup bar assembly
    Patent number: 6322467
    Abstract: A movable backup bar assembly includes an endless drive chain, a sprocket or the like for coupling the drive chain to the power source, and a backup bar for guiding the drive chain. The assembly has two positions: a first position for holding the drive chain in engagement with the chain to be driven and a second position for holding the drive chain away from the driven chain. An actuator is provided for positively shifting the assembly between these two positions.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: November 27, 2001
    Assignee: Jervis B. Webb Company
    Inventors: Christopher A. Hook, Ronald L. Bailey