Patents by Inventor Dale R. Hahn

Dale R. Hahn 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: 5166251
    Abstract: A corrosive resistant coating with deep drawability characteristics which is applied to a metal substrate as a wet film and then heated to dry and initiate curing to provide a protective coating tenaciously bonded to the substrate. The composition has a corrosion inhibiting powder metal, a drawing agent of polytetrafluorethylene (PTFE), a primary bonding resin, and a vehicle of solvents. Preferably, the coating composition also has a secondary organic resin and thixotropic, metal suspension and hydroscopic agents. The cured coating composition on a metal substrate, in most instances, eliminates the needs for additional die drawing compounds when deep cold drawing the coated metal substrate.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: November 24, 1992
    Assignee: Depor Industries, Inc.
    Inventors: L. Donald Barrett, Burkhard Flamme, Dale R. Hahn, Peter E. Pelloski
  • Patent number: 5047451
    Abstract: A corrosive resistant coating composition with improved weldability characteristics which is applied to a metal substrate as a wet film and then heated to dry and initiate curing to provide a protective coating tenaciously bonded to the substrate. The composition has corrosion inhibiting finely divided aluminum or stainless steel, a weldability agent of finely divided nickel, a primary bonding resin, and a vehicle of solvents. Preferably, the composition also has a secondary organic resin and thixotropic, metal suspension and hydroscopic agents.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: September 10, 1991
    Assignee: Depor Industries, Inc.
    Inventors: L. Donald Barrett, Dale R. Hahn, Peter E. Pelloski, Richard W. Ziegler