Patents by Inventor Edward B. Heckenkamp

Edward B. Heckenkamp 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).

  • Auxiliary spring assisted valve linkage
    Patent number: 4235415
    Abstract: A pressure biased control valve holding the valve in the actuated position against the force of a return spring operating in connection with a linkage having a separate return spring and a loss motion connection to allow the valve and linkage to operate independently to the return position and assure the pressurized fluid in the valve maintains the valve in the actuating position regardless of pressure changes in the hydraulic system.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: November 25, 1980
    Assignee: Allis-Chalmers Corporation
    Inventor: Edward B. Heckenkamp
  • Rear drive assembly with load sensing
    Patent number: 4173259
    Abstract: A load-sensing device for sensing strain on the rear drive housing responsive to draft loads on the vehicle for generating a signal for controlling the raising and lowering of an implement through a hydraulic system of distributing vehicle weight or vehicle and implement weight.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: November 6, 1979
    Assignee: Allis-Chalmers Corporation
    Inventor: Edward B. Heckenkamp
  • Universal dust cover for a hydraulic coupling socket
    Patent number: 4016908
    Abstract: A dust cover for selective use in sockets of different cross sectional configurations. The couplings are provided in hydraulic lines between a tractor and an implement where coupling and decoupling of the interconnected line is needed. The cover is used in the socket end of the coupling for cleanliness of fluid handling in the hydraulic system and to assure that the impurities are not allowed to contaminate the system by entrance into an open socket when the coupling is decoupled.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: April 12, 1977
    Assignee: Allis-Chalmers Corporation
    Inventor: Edward B. Heckenkamp
  • Release for breakaway coupling
    Patent number: 3966239
    Abstract: An easy release mechanism for a breakaway hydraulic coupling. The release mechanism is mounted on a bracket with at least one coupling and includes a handle and a pivotal support for biasing the coupling to an engaging or disengaging position relative to the locking sleeve of the coupling.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: June 29, 1976
    Assignee: Allis-Chalmers Corporation
    Inventor: Edward B. Heckenkamp