Patents by Inventor Robert D. Holbein

Robert D. Holbein 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 and apparatus for heating coils of strip
    Patent number: 4147506
    Abstract: Coils of strip to be annealed are placed in a furnace with their eye vertical and are heated to the annealing temperature by heating elements on the furnace side wall at the same elevation as the coils. An insulation shield is provided between the heating elements and the coil. This may be a cover surrounding the coil in spaced relationship therewith and extending the full height of the coil.
    Type: Grant
    Filed: October 14, 1977
    Date of Patent: April 3, 1979
    Assignee: Allegheny Ludlum Industries, Inc.
    Inventors: Raymond L. Southern, James G. Benford, Steve Petarra, Robert D. Holbein, Albert F. Vince