Patents by Inventor James R. Katzenmeyer

James R. Katzenmeyer 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).

  • Dampened pressure regulating and load cell tappet
    Patent number: 5372114
    Abstract: A hydraulic tappet for use in the fuel injector drive trains of compression ignition or diesel internal combustion engines are provided which optimize injector timing for improved fuel economy. One embodiment of the hydraulic tappet of the present invention includes a dampened pressure regulating feature which determines blow down pressure. A second embodiment of the hydraulic tappet of the present invention includes a dampening load cell feature which allows the blow down pressure of the load cell to be increased and injection timing to be optimally advanced.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: December 13, 1994
    Assignee: Cummins Engine Company, Inc.
    Inventors: Gary L. Gant, P. Douglas Free, James R. Katzenmeyer, Donald E. Duckworth, George L. Muntean