Patents by Inventor Terry L. Cook

Terry L. Cook 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: 4647352
    Abstract: A water-based composition for selective stripping of electroless applied nickel from ferrous, titanium and aluminum substrates is disclosed which includes a quantity of a chromic acid which functions as an oxidizing and electrolytic agent, an amount of globular sodium bisulfite which causes the chromium in the solution to substantially remain in a trivalent state, and a sufficient amount of phosphoric acid as a catalyst to enhance removal of electroless applied nickel by the oxidizing and electrolytic agent. Accelerated removal of electroless applied nickel is accomplished by confining the stripping composition in an enclosure, introducing a nickel-coated substrate into the stripping bath, providing a ferrous surface in the bath, connecting a DC source to the substrate serving as an anode while the ferrous surface functions as the cathode, maintaining the DC source at a voltage of about 6 volts, and heating the bath to a temperature of about 120.degree. F.
    Type: Grant
    Filed: October 30, 1985
    Date of Patent: March 3, 1987
    Assignee: ACRA, Inc.
    Inventor: Terry L. Cook
  • Patent number: D290449
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: June 23, 1987
    Inventors: George W. Hughes, Terry L. Cook, Darrell Burchfield