Patents by Inventor Charles L. Mathews

Charles L. Mathews 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).

  • Coated elongated core material
    Patent number: 6027822
    Abstract: A composite wire made by coating a core material by solid-phase extrusion of a uniform layer of a corrosion resistant metal onto the core material. The metal includes lead and has uniform, small and longitudinally oriented grains.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: February 22, 2000
    Inventors: Richard J. Blanyer, Charles L. Mathews
  • Coated elongated core material
    Patent number: 5925470
    Abstract: A composite wire made by coating a core material by solid-phase extrusion of a uniform layer of a corrosion resistant metal onto the core material. The metal includes lead and has uniform, small and longitudinally oriented grains.
    Type: Grant
    Filed: December 16, 1997
    Date of Patent: July 20, 1999
    Inventors: Richard J. Blanyer, Charles L. Mathews
  • Method and apparatus for coating a core material with metal
    Patent number: 5010637
    Abstract: Apparatus and method for coating a high tensile strength fibrous material with an extrudible, corrosion-resistant metal to form a composite, continuous wire using dies, a compression cylinder in fluid connection with the dies, a piston for forcing the metal out of the compression cylinder and through the dies and means for feeding a fibrous material through the dies as the metal coating is extruded out the dies with the fiber. Continuous lengths of a composite material made by such a method, electrode grids comprised of the composite material made by such a method and a cabled composite wire constructed of the composite material made by such a method. Also, series and parallel connected cells comprising a battery utilizing such electrode grids.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: April 30, 1991
    Inventors: Richard J. Blanyer, Charles L. Mathews
  • Battery grid structure made of composite wire
    Patent number: 4865933
    Abstract: A high tensile strength fibrous material is coated with an extruded, corrosion-resistant metal to form a composite wire which is used in the formation of a grid element for a battery.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: September 12, 1989
    Inventors: Richard J. Blanyer, Charles L. Mathews
  • Method and apparatus for coating a core material with metal
    Patent number: 4658623
    Abstract: Apparatus and method for coating a high tensile strength fibrous material with an extrudible, corrosion-resistant metal to form a composite, continuous wire using dies, a compression cylinder in fluid connection with the dies, a piston for forcing the metal out of the compression cylinder and through the dies and a mechanism for feeding a fibrous material through the dies as the metal coating is extruded out the dies with the fiber. Continuous lengths of a composite material made by such a method, electrode grids comprised of the composite material made by such a method and a cabled composite wire constructed of the composite material made by such a method. Also, series and parallel connected cells comprising a battery utilizing such electrode grids.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: April 21, 1987
    Inventors: Richard J. Blanyer, Charles L. Mathews