Patents by Inventor Bobby E. White

Bobby E. White 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).

  • Drawworks
    Patent number: 4438904
    Abstract: Drawworks, having a single outboard brake on the drum shaft at the driller side of the drawworks instead of the pair of brakes conventionally provided at the drum ends, whereby the brake is more readily accessible for service and repairs than are the brakes of conventional apparatuses.
    Type: Grant
    Filed: January 7, 1982
    Date of Patent: March 27, 1984
    Inventor: Bobby E. White