Patents Represented by Attorney David French

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  • Patch for fabric air tubes
    Patent number: 6013343
    Abstract: A patch for a ducting wall has two sealing portions, one of which may be bent to pass through a torn opening in the ducting wall. When jointed by a coupling means, the two sealing portions may pinch the ducting wall surrounding the torn opening and provide a barrier against the escape of air through the opening.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: January 11, 2000
    Inventors: Edgar Helge Fred Radke, Constantinos J. Joannou
  • Vehicle axle control system
    Patent number: 5193063
    Abstract: A control system for a liftable auxiliary axle samples axle load measurements, and responds with adjustments based on an average value for axle load taken over a number of samples. Further features provide the system with verification and fail-safe procedures, as well as protection against operator subversion.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: March 9, 1993
    Inventor: Daniel Assh