Patents by Inventor Ralph W. Charlton

Ralph W. Charlton 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: 4483732
    Abstract: This invention relates to a method for producing a decorative reflective surface covering with improved adhesion of the various layers, having a backing, metallic areas and a transparent top layer, and the product thus produced. This product is produced by applying an adhesive on the surface of a backing in regular, spaced intervals, bringing a metal face of a film in contact with the adhesive to secure it to the backing, removing the metal film whereby the areas in contact with the adhesive remain on the backing and then applying a transparent layer to the surface of the backing covering the remaining metallic areas.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: November 20, 1984
    Assignee: Congoleum Corporation
    Inventors: Vincent L. Penta, Joseph Boba, Robert P. Conger, Ralph W. Charlton, deceased, by Phylis M. Charlton, executor
  • Patent number: 3966857
    Abstract: A method for extruding synthetic resinous materials including introducing a mixture of softened variously or similarly colored or clear resinous chips into an extruder, coating the chips with a coating agent such as a lubricant in the barrel of the extruder, extruding the mixture through an extrusion die thereby to produce a finished product of fused resinous chips maintaining good color definition between the chips.
    Type: Grant
    Filed: December 31, 1969
    Date of Patent: June 29, 1976
    Assignee: Congoleum Industries, Inc.
    Inventors: Ralph W. Charlton, Seevaram N. Varadhachary