Patents by Inventor Walter G. Cox, Jr.

Walter G. Cox, Jr. 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).

  • Injection molding and extrusion barrels and alloy compositions thereof
    Patent number: 5565277
    Abstract: A bimetallic barrel for use in injection molding and extrusion. The barrel is formed of a backing steel and a metal inlay liner. The backing steel is either a microalloyed steel, carbon steel 1045 or carbon steel 1060. Inlay compositions, including copper containing ones, are disclosed.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: October 15, 1996
    Assignee: Xaloy, Inc.
    Inventors: Walter G. Cox, Jr., Schiao F. Chou
  • Process for using a high pressure injection molding cylinder
    Patent number: 5160690
    Abstract: An iron-based inlay alloy composition for high pressure injection molding of plastics. The composition includes carbon, chromium, molybdenum, tungsten and vanadium, and may be used as an inlay for bimetallic cylinders for injection molding plastic at pressures above 40,000 psi.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: November 3, 1992
    Assignee: Xaloy Incorporated
    Inventors: Walter G. Cox, Jr., Schiao F. Chou