Patents by Inventor Paul C. Neff

Paul C. Neff 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).

  • Knob for a pan cover
    Patent number: 4193166
    Abstract: A knob for the cover of a pan or similar container which is used for waterless cooking. The knob is installed in an opening formed in the pan cover. A vent passage extends from the pan cover opening to an outlet in the lower peripheral portion of the knob. A disc is provided for closing the vent passage and a slidable tubular housing is provided with lifting surfaces to lift the disc and open the vent passage. The knob can be partially disassembled for cleaning by rotation of the outer tubular housing.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: March 18, 1980
    Assignee: Northwest Molded Products Corporation
    Inventor: Paul C. Neff
  • Aquarium heater
    Patent number: 4163145
    Abstract: An aquarium heater having a heat resistant plastic housing. A heat producing electric resistance wire is positioned in the plastic housing in an aluminum foil container. In one embodiment, the container is an aluminum foil pouch which encloses the heat producing electric resistance wiring. The aluminum foil pouch is filled with sand. In another embodiment, the aluminum container is an annular pan and the electrical resistance wire is coiled in the pan.
    Type: Grant
    Filed: July 19, 1978
    Date of Patent: July 31, 1979
    Inventor: Paul C. Neff