Patents Assigned to Howick Engineering Limited
  • 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