Patents by Inventor Karl Sanderson

Karl Sanderson 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).

  • Annealing furnace
    Patent number: 4223877
    Abstract: A protective sleeve, for a cover used to enclose metal coils in an annealing furnace having a plurality of fuel burners whereby the coils are protected from the direct flame of the burners, comprising a circumscribing band mounted on the cover and held in spaced relationship from the cover, the band being interposed between the cover and the burners.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: September 23, 1980
    Assignee: Lee Wilson Engineering Company of Canada
    Inventor: Karl Sanderson