Patents by Inventor Ernest R. Cole, Jr.

Ernest R. Cole, 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).

  • Production of lead from sulfides
    Patent number: 4500398
    Abstract: Lead is recovered from sulfide ores which contain lead by leaching the ore with fluosilicic acid to form elemental sulfur and lead fluosilicate, and then subjecting the lead fluosilicate to electrolysis to produce lead and fluosilicic acid.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: February 19, 1985
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Ernest R. Cole, Jr., Agnes Y. Lee, Danton L. Paulson
  • Electrowinning of lead from H.sub.2 SiF.sub.6 solution
    Patent number: 4272340
    Abstract: Lead is electrowon from aqueous phosphorus-containing fluosilicic acid solution by deposition on a lead cathode, employing an anode comprising a titanium substrate and an electrodeposited lead oxide coating having a uniform, dense grain size and structure.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: June 9, 1981
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Ernest R. Cole, Jr., Agnes Y. Lee, Danton L. Paulson
  • Method of producing a lead dioxide coated cathode
    Patent number: 4159231
    Abstract: A long-lived electrode is produced, for use in the electrowinning of metals, by electrodepositing a coating onto the electrode substrate. The coating has a uniform grain size and structure which is controlled by superimposing alternating current onto direct current during electrodeposition.
    Type: Grant
    Filed: August 4, 1978
    Date of Patent: June 26, 1979
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Lawrence L. Smith, Richard G. Sandberg, Ernest R. Cole, Jr.
  • Method for eliminating solution-level attack on cathodes during electrolysis
    Patent number: 4104132
    Abstract: A method for electrolytic deposition of metals, particularly zinc, in which the tendency for the cathode to be attacked in the immediate vicinity of the solution level is eliminated or greatly reduced by positioning a barrier structure in the cell assembly in a manner such that it extends from slightly above to slightly below the level of the solution in the cell. The barrier, which may be of any material resistant to attack by the electrolytic solution, prevents the migration of the oxygen at the solution level and thus protects the cathode from solution level attack.
    Type: Grant
    Filed: July 22, 1977
    Date of Patent: August 1, 1978
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventor: Ernest R. Cole, Jr.