Patents by Inventor Edwin Terry Groff

Edwin Terry Groff 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).

  • Oven heating system
    Patent number: 4120646
    Abstract: Heating apparatus for a baking oven or the like wherein product to be heated or baked is conveyed through the oven, and a plurality of heating elements are arranged longitudinally along the path of product movement through the oven, the heating elements each comprising a conductive tube extending transversely across the path of product movement, a burner at one tube end for introducing a combustible mixture therein, and combustion products outlet means at the other tube end for discharge into the oven chamber.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: October 17, 1978
    Inventors: Edwin I. Groff, Edwin Terry Groff