Patents by Inventor Donald Percy Shelley

Donald Percy Shelley 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).

  • Kilns
    Patent number: 4011394
    Abstract: A set of components for use in the construction of a kiln comprising a number of holding devices adapted to be mounted on the outside of a kiln, a number of tie bars engageable in the holding devices so that the tie bars project into the kiln through the insulated walls thereof, and slabs or sheets of lightweight lining material adapted to be supported by the tie bars at the inner surface of the kiln wall.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: March 8, 1977
    Inventor: Donald Percy Shelley