Patents by Inventor Russell S. Bibbee

Russell S. Bibbee 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).

  • Patent number: 4963400
    Abstract: Method and apparatus for applying a dry-film drawing lubricant to metal blanks. Paired applicator and doctor rolls are positioned above and below the path of the sheets advancing through a roll box. The doctor rolls have end flanges overlapping the ends of the associated applicator rolls. A body of the liquid lubricant is maintained in the reservoir defined by each pair of applicator and doctor rolls, and following application of a coating of the lubricant to their surfaces, the blanks are conveyed between opposed heaters which raise the temperature of the coating to drive moisture therefrom. The blanks are conveyed between cooling units which lower the temperature of the lubricant coated surfaces, and thereafter through a transition zone to bring the temperature to the ambient range to prevent condensation thereon as the blanks are discharged to the atmosphere.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: October 16, 1990
    Assignee: Precision Carbide Die, Inc.
    Inventors: Russell S. Bibbee, Robert E. Stearns