Patents by Inventor Ronald Parkinson

Ronald Parkinson 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: 4330380
    Abstract: When the electrodeposition of nickel is carried out in the presence of sulphur, it is desirable to control the content and the distribution of the sulphur in the deposited nickel. Sulphur-bearing nickel is deposited onto a multiplicity of cathodes (12) in an electrolytic cell. The electrolyte contains nickel ions, chloride ions, and at least one thiocyanate compound. To prevent oxidation of the thiocyanate ions by the chlorine gas generated at the anode (11), the chlorine is almost completely excluded from the cathode compartment by providing a flow of electrolyte from the cathode (12) to the anode (11) and by continuously removing chlorine and chlorine-containing electrolyte from the anode through a manifold (26). A weir (14) prevents back flow.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: May 18, 1982
    Assignee: Falconbridge Nickel Mines Limited
    Inventors: Ronald Parkinson, Robert W. Howard
  • Patent number: 4139430
    Abstract: A reusable integrated cathode unit and an associated electrolytic method are disclosed for the simultaneous production of a multiplicity of metal electrodeposits by plating from a base metal electrolyte. The rigid cathode unit has two integrated components, a slab of non-conductive material and a metal assembly which is embedded therein. The metal assembly has projections that penetrate the slab surface at spaced locations thereby forming an array of conductive metal islands flush with or raised above the surface of the cathode unit which serve as the sites for plating of the electrodeposits. The method is advantageously characterized by the production of unique, crown shaped electrodeposits with basal areas much larger than the areas of the conductive islands on which they are formed, and a significant component of growth in a direction normal to the plating surface.
    Type: Grant
    Filed: January 4, 1978
    Date of Patent: February 13, 1979
    Inventors: Ronald Parkinson, Richard A. Sinton
  • Patent number: 4082641
    Abstract: A reusable integrated cathode unit and an associated electrolytic method are disclosed for the simultaneous production of a multiplicity of metal electrodeposits by plating from a base metal electrolyte. The rigid cathode unit has two integrated components, a slab of non-conductive material and a metal assembly which is embedded therein. The metal assembly has projections that penetrate the slab surface at spaced locations thereby forming an array of conductive metal islands flush with or raised above the surface of the cathode unit which serve as the sites for plating of the electrodeposits. The method is advantageously characterized by the production of unique, crown shaped electrodeposits with basal areas much larger than the areas of the conductive islands on which they are formed, and a significant component of growth in a direction normal to the plating surface.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: April 4, 1978
    Assignee: Falconbridge Nickel Mines Limited
    Inventors: Ronald Parkinson, Richard Allan Sinton