Patents by Inventor BRUCE R. GILLESPIE

BRUCE R. GILLESPIE 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).

  • AUTO PITCH CONTROL POWER TROWEL
    Publication number: 20130129419
    Abstract: An automatic pitch control system for riding power trowels enables a user to control and automatically adjust trowel blade pitch and height for concrete finishing. The disclosed system provides for blade pitch of separate rotor assemblies to be adjusted independently of one another or synchronously. The disclosed system also provides for a mode of operation that allows the user to completely flatten trowel blades for panning.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 23, 2013
    Inventors: STEVEN K. HANSON, BRIAN L. HAMMOND, DAVID LILLANTHAL, BENJAMIN A. WIESE, BRUCE R. GILLESPIE, ROBERT DANE DAVIS, COLE R. BAIRD