Patents by Inventor Leo J. Deistler

Leo J. Deistler 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: 5552235
    Abstract: An embossed cold rolled metal (e.g. steel) sheet for use in manufacturing appliances and method of making same wherein the surface attributes of the embossed sheet are optimized to improve corrosion resistance of the painted product, promote uniform paint coverage of the sheet surface, reduce paint consumption, enable repainting without loss of pattern crispness, and provide consistent and aesthetically pleasing appearance of the painted sheet. The embossed sheet has a plurality of plateaus and impressions defined therein in a manner such that the arithmetic average surface roughness (Ra) of the plateaus is from about 50 to 100 microinches, the maximum impression depths over a given area are from about 0.0025 to 0.0032 inches, the impression walls define maximum slopes of from about 8-17 degrees, and there are no sharp corners or ridges at the transition points between plateaus and impressions.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: September 3, 1996
    Assignee: Bethlehem Steel Corporation
    Inventors: Adel F. Bastawros, John G. Speer, Leo J. Deistler, Eugene H. Schuchert