Patents by Inventor Craig Sleep

Craig Sleep 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).

  • Tow truck selector pin
    Patent number: 4352327
    Abstract: The selector pin for a tow truck is comprised of first and second tubes aligned end to end with a spring confined within the tubes and under tension to maintain the tubes in end-to-end alignment, while permitting one tube to pivot relative to the other tube through an arc up to 90.degree..
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: October 5, 1982
    Assignee: SI Handling Systems, Inc.
    Inventor: Craig Sleep
  • Material handling vehicle
    Patent number: 4179993
    Abstract: A tow line vehicle having a tow pin is provided with a bumper capable of moving the tow pin from an operative position coupled to a tow chain to an inoperative position. The bumper is coupled to the tow pin in a manner so that it does not interfere with the ability of simultaneously raising the tow pin and a selector pin by means of a handle on the vehicle.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: December 25, 1979
    Assignee: SI Handling Systems, Inc.
    Inventor: Craig Sleep