Patents by Inventor Keith F. Hendrck

Keith F. Hendrck 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).

  • Heated blades for wax melting
    Patent number: 6957686
    Abstract: A knife for heating the wax on the surface of a wax runner. The knife as a surface which is recessed in the center of the surface to permit melted wax to flow up into the recessed area and not flow away from the knife. Alternately, conformal heating surface which melts only that portion of the wax runner to which the pattern gate is affixed. Additionally an electrical circuit is provided which includes a heater and a temperature controller to limit the temperature at which wax is melted.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: October 25, 2005
    Assignee: MPI Incorporated
    Inventors: Raymond H. Puffer, Jr., Bruce S. Phipps, Daniel Walczyk, Rory Mackean, Jason Chalfant, Keith F. Hendrck