Patents by Inventor Wayne E. Hoffman

Wayne E. Hoffman 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).

  • Propeller deicer
    Patent number: 4386749
    Abstract: A deicer for use on the propeller of an aircraft wherein the heating elements or elements of the deicer which are embedded in an electrically non-conductive material adhered to a propeller blade provide a gradient type of heat distribution pattern having the greatest heat concentration at the area of the propeller closer to the shank end and a lower heat concentration at the area of the propeller further away from the shank end.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: June 7, 1983
    Assignee: The B. F. Goodrich Company
    Inventors: David B. Sweet, Wayne E. Hoffman