Patents by Inventor Robert E. Coffin

Robert E. Coffin 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).

  • Method for finishing resinous surface coverings
    Patent number: 3996328
    Abstract: A method for finishing resinous sheet material wherein the sheet material is adhered to a support surface and is passed through a pressure nip having an upper hard, very smooth, resiliently backed finishing surface and a lower support surface, the outer surface of the sheet material being maintained between about 100.degree. F and 300.degree. F while moving through the nip, the heat being provided from previous processing steps, without adding any additional heat at the finishing step, and subsequently cooling the sheet material after it has passed through the nip.
    Type: Grant
    Filed: February 17, 1972
    Date of Patent: December 7, 1976
    Assignee: Congoleum Corporation
    Inventors: Robert E. Coffin, Anthony N. Piacente