Patents by Inventor Roger L. Crandall

Roger L. Crandall 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).

  • Gas wiping apparatus and method of using
    Patent number: 4339480
    Abstract: A gas wiping die for wiping wire issuing from a molten metal coating bath is provided with critical parameters with respect to the die angle, the length and thickness of the die orifice and the relationship of the sides of the orifice, the throat diameter of the die and the height above the molten bath surface. The thickness of molten coatings on wire wiped with the combined die can be very accurately controlled by changes in wiping gas pressure.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: July 13, 1982
    Assignee: Bethlehem Steel Corporation
    Inventors: Anthony J. Stavros, Roger L. Crandall