Patents by Inventor Allan Keith Coubray

Allan Keith Coubray 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).

  • Rack and pinion door drive system
    Patent number: 6257303
    Abstract: A drive for a tracked door which utilises a drive pinion which engages a tracked rack that in turn moves the door as it is moved track-wise under the action of the pinion. A flexible rack able to travel on a curved locus is preferred.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: July 10, 2001
    Assignee: Howick Engineering Limited
    Inventors: Bruce Arthur Coubray, Allan Keith Coubray