Patents by Inventor Frederick Earl Woodlief

Frederick Earl Woodlief 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).

  • RAILROAD CROSSING GATE HAVING A UNIVERSAL CROSSING GATE ARM WITH A RACK AND PINION COUNTERWEIGHT ADJUSTMENT SYSTEM
    Publication number: 20080093509
    Abstract: A railroad crossing gate comprising a crossing gate arm having a counterweight support structure and one or more counterweights supported by the counterweight support structure. The counterweight support structure includes a gear rack provided along a first portion of the crossing gate arm and a pinion gear operatively coupled to and selectively movable along the gear rack.
    Type: Application
    Filed: October 23, 2006
    Publication date: April 24, 2008
    Applicant: Union Switch & Signal, Inc.
    Inventors: Frederick Earl Woodlief, Cory Allen Cook