Patents by Inventor Wilburn L. Hippach

Wilburn L. Hippach 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).

  • Hoist apparatus
    Patent number: 4139178
    Abstract: An improved cable hoist apparatus having a drive sheave, a tensioning sheave, a pressure inducing chain and a brake system including a set of gears, linkage and brake actuating means. The linkage includes means for disengaging the gears under extreme operating conditions without loosening the chain from around the cable. An improved shaft assembly prevents binding and a solenoid actuated primary brake is manually operated.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: February 13, 1979
    Assignee: Power Climber Inc.
    Inventor: Wilburn L. Hippach