Patents by Inventor William Richard Rinker

William Richard Rinker 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).

  • Continuous mold thermo forming
    Patent number: 3982868
    Abstract: An apparatus for the continuous forming of molded plastic sheet from granular thermoplastic materials directly from granular thermoplastic material by plasticizing the granular material through a blender and an extruder, thence passing such material through a pair of roller dies to form a sheet of material that is fed directly to a continuously moving conveyor belt where the sheet is vacuum formed, thence trimmed and cut to size.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: September 28, 1976
    Assignee: The B. F. Goodrich Company
    Inventor: William Richard Rinker