Patents by Inventor Edward H. Clapp

Edward H. Clapp 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).

  • Duplex mechanical lock control unit for a parking brake system
    Patent number: 4596426
    Abstract: A vehicle brake control system for the wheels (122) of a vehicle wherein each wheel (122) includes a brake assembly (110) is provided. The control system includes tanks (14, 16) containing pressurized fluid. Brake actuators (21, 22, 23, 24) are interconnected to the wheels (122) of the vehicle for controlling a mechanical lock (162) for the brake assembly (110) associated with each wheel (122). A control unit (40) is interconnected to the tanks (14, 16) and the actuators (21, 22, 23, 24) for supplying fluid from a tank (14, 16) to the actuators (21, 22, 23, 24) to control the engagement and disengagement of the brake lock (162) in the event of loss of pressure in either of the tanks (14, 16).
    Type: Grant
    Filed: January 6, 1984
    Date of Patent: June 24, 1986
    Inventor: Edward H. Clapp
  • Air brake
    Patent number: D245688
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: September 6, 1977
    Inventor: Edward H. Clapp