Patents by Inventor Donald W. Schonhoff

Donald W. Schonhoff 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).

  • Bi-metal vehicle bumper structure
    Patent number: 6003912
    Abstract: A bi-metal bumper structure comprises an elongated tubular bumper beam made of aluminum, and an elongated reinforcing plate made of steel. The beam is curved in an arc from end to end and has a curved radially inner wall. The reinforcing plate extends lengthwise of the beam and has the same curve as the inner wall of the beam and is rigidly secured in surface-to-surface relation to the inner wall. The reinforcing plate is preferably about one-third the length of the beam.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: December 21, 1999
    Assignee: Chrysler Corporation
    Inventors: Donald W. Schonhoff, Gerald P. Pokriefka, John A. DiGasbarro