Patents by Inventor Lorne Alvin Tupper

Lorne Alvin Tupper 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).

  • Gas purification medium for removing sulfides from gaseous streams
    Patent number: 7198661
    Abstract: A gas purification medium for removing sulfides from a gaseous stream which includes tailings containing mixed metal oxides produced from a high pressure hydrometallurgical leaching process of a sulfidic ore for the recovery of at least one of nickel, cobalt, copper or zinc, mixed with a porous carrier medium.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: April 3, 2007
    Inventor: Lorne Alvin Tupper
  • Method of scrubbing lower mass sulfides with a sulfide scrubbing medium capable of regeneration
    Patent number: 7189381
    Abstract: A method of scrubbing lower mass sulfides with a sulfide scrubbing medium capable of regeneration. The sequential order of gas flow through three vessels is altered. A first of the three vessels is maintained in a scrubbing mode, scrubbing to breakthrough sulphur from the gas that passes through it. A second of the three vessels is maintained in a conditioning mode. Sulfide scrubbing medium in the vessel removes any residue of sulphur from the gas while being conditioned by such limited exposure to sulphur. A third of the three vessels is maintained in a regeneration mode. Saturated sulfide scrubbing medium in the vessel removes excess oxygen from the gas while being regenerated by such exposure to oxygen.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: March 13, 2007
    Inventor: Lorne Alvin Tupper