Patents by Inventor Thomas F. Stiegart

Thomas F. Stiegart 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).

  • Work vehicle implement lever lock
    Patent number: 5325733
    Abstract: A work machine control assembly has a plurality of actuating levers each associated with a respective actuating element for controlling respective movements of a work implement of the work machine, for example an excavator. The control assembly of this invention has a cam operated moveable gate which captures portions of the actuating elements and controllably locks them in a preselected position in response to actuation of a lock actuation lever.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: July 5, 1994
    Assignee: Caterpillar Inc.
    Inventors: Stamos I. Papasideris, Thomas F. Stiegart