Patents by Inventor Gerry T. Gfroerer

Gerry T. Gfroerer 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).

  • Method and apparatus for controllably avoiding an obstruction to a cold planer
    Patent number: 6152648
    Abstract: A jump and return to grade function provides a means by activation of a switch to rapidly raise a milling machine to avoid an obstacle, then return the machine to the previous milling position. When the jump function is activated, the legs are extended at full speed, causing the machine to rise. In the return to grade function, the legs are retracted at controlled speeds until the previous milling depth is reached or the switch is released.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: November 28, 2000
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Gerry T. Gfroerer, Michael W. Netka, Mario J. Souraty