Patents by Inventor Ray D. Williams

Ray D. Williams 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: 4595543
    Abstract: A novel molding pattern and method of making the same comprises the use of first and second image negatives sequentially positioned on opposed sides of a light sensitive resinous mass. Ultraviolet light waves are sequentially passed through each negative for user-selectable time periods so as to sensitize the portions of the resinous mass adjacent the image areas of each negative. Upon completion, a pattern is presented having a relatively offset primary image and a secondary background image with the secondary image also being in relief relative to a background area. The pattern is suitable for use in a casting-to-shape process or the like and eliminates the need for providing an engraved pattern with the primary and/or secondary images engraved thereon.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: June 17, 1986
    Inventor: Ray D. Williams