Patents by Inventor Philip V. Busby

Philip V. Busby 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).

  • Power operated support or landing legs
    Patent number: 5004267
    Abstract: The invention provides a system for selective extension and retraction of a support leg of equipment such as a trailer or dock leveller, comprising a fluid motor which is adapted to be mechanically connected with an actuating member of the leg whereby on operation of the motor the leg can be extended or retracted, and apparatus for mounting the system onthe equipment so that a drive line from the motor to the acutating member is non-linear.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: April 2, 1991
    Inventor: Philip V. Busby
  • Drive mechanism for a vehicle trailer lifting gear
    Patent number: 4345779
    Abstract: Drive mechanism is provided for mechanically actuating support legs of a vehicle trailer lifting gear. The mechanism includes a rotary drive unit 1 driven by air under pressure supplied from a vehicle for drawing the trailer. The unit 1 has a drive socket 7 engaging a corresponding shaped nut 6 welded to a shaft 5 engaging gearing controlling extension and retraction of telescopic support legs 4a.
    Type: Grant
    Filed: June 17, 1980
    Date of Patent: August 24, 1982
    Inventor: Philip V. Busby