Patents by Inventor Erich E. Drochner

Erich E. Drochner 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).

  • Energy absorbing pull hook for construction vehicles
    Patent number: 4006917
    Abstract: A construction vehicle has a pull hook arrangement mounted on a rearward end of a frame thereof for towing purposes. Such arrangement comprises a pull hook and energy absorbing means normally secured between the frame and the pull hook and adapted to break-away from the frame when the load on the pull hook exceeds a predetermined magnitude. The energy absorbing means preferably comprises a tubular member which is tapered-down rearwardly to thereafter permit it to be drawn through an aperture formed in the frame to absorb energy thereby.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: February 8, 1977
    Assignee: Caterpillar Tractor Co.
    Inventors: Douglas P. Liehr, Erich E. Drochner
  • Retaining means for pivot pin
    Patent number: T985006
    Abstract: apparatus for pivotally connecting two relatively movable members has a pin having one end connectable with a retainer plate. Flat surfaces and shoulders formed on the one pin end respectively engage the plate and an aperture therein and with an end connected bolt and washer universally maintains the pin.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: August 7, 1979
    Assignee: Caterpillar Tractor Co.
    Inventor: Erich E. Drochner