Patents by Inventor H. David Sturdy

H. David Sturdy 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).

  • Road and engine speed governor with power demand control
    Patent number: 4640246
    Abstract: A governor is disclosed for governing engine and road speed for motor vehicles. A movable overriding throttle closing device limits the speed to governed values. An actuator for the device is moved by a reversible motor to a reference position when a speed call-in value is reached and the actuator is moved at slow speed to maintain the governed speed. The actuator is moved to an intermediate position closely adjacent to the reference position for speeds below the call-in value. An engine power demand control system is provided to cause the actuator to be moved in the wide open throttle direction in response to a sustained power demand.
    Type: Grant
    Filed: January 3, 1986
    Date of Patent: February 3, 1987
    Assignee: Sturdy Truck Equipment, Incorporated
    Inventor: H. David Sturdy