Patents by Inventor Donald W. Du Bois

Donald W. Du Bois 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: 4342629
    Abstract: Disclosed is a solid polymer electrolyte electrolytic cell, e.g., for chlorine production, where the electrodes are in compressive contact with and removable from the permionic membrane.
    Type: Grant
    Filed: September 19, 1979
    Date of Patent: August 3, 1982
    Assignee: PPG Industries, Inc.
    Inventors: Donald W. Du Bois, William B. Darlington
  • Patent number: 4282074
    Abstract: Disclosed is a method of electrolyzing an alkali metal chloride brine where the cathode is an intercalation compound of graphite and a transition metal. Also disclosed is a solid polymer electrolyte having as its cathode an intercalation compound of graphite and a transition metal, and an electrolytic cell having as its cathode an intercalation compound of graphite and a transition metal.
    Type: Grant
    Filed: July 7, 1980
    Date of Patent: August 4, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Donald W. Du Bois
  • Patent number: 4165248
    Abstract: Disclosed is a method of bonding two fluoropolymer membrane sheets. According to the disclosed method, a third sheet is contacted with a base and then interposed between the two membrane sheets. The two membrane sheets may also be contacted with a strong base. The resulting sandwich of three sheets is heated and pressed to effect the bond.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: August 21, 1979
    Assignee: PPG Industries, Inc.
    Inventors: William B. Darlington, John D. Driskill, Donald W. Du Bois
  • Patent number: 4133730
    Abstract: Disclosed is an improved method of electrolysis utilizing an electrode fabricated from an alloy of titanium and a rare earth metal. The electrode may be a cathode, or, when having a suitable electrocatalytic coating, an anode, or even a bipolar electrode with anodic and cathodic regions. Also disclosed are electrolytic cells containing such a bipolar electrode, and electrolytic cells containing electrodes fabricated of alloys of titanium and rare earth metals.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: January 9, 1979
    Assignee: PPG Industries, Inc.
    Inventors: Donald W. Du Bois, William B. Darlington
  • Patent number: 4075070
    Abstract: Disclosed is an improved method of electrolysis utilizing an electrode fabricated from an alloy of titanium and a rare earth metal. The electrode may be a cathode, or, when having a suitable electrocatalytic coating, an anode, or even a bipolar electrode with anodic and cathodic regions. Also disclosed are electrolytic cells containing such a bipolar electrode, and electrolytic cells containing electrodes fabricated of alloys of titanium and rare earth metals.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: February 21, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Donald W. Du Bois, William B. Darlington
  • Patent number: 3935350
    Abstract: Disclosed herein is a method of reducing crevice corrosion in titanium structures having gasketed joints, by the use of rubber gaskets characterized by the substantial absence of calcium. Also disclosed is a method of electrolysis in a titanium vessel having gasketed titanium joints with rubber gaskets substantially free of calcium in the joints and crevices.
    Type: Grant
    Filed: June 27, 1974
    Date of Patent: January 27, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Donald W. Du Bois, William B. Darlington