Patents by Inventor Peter C. Mason

Peter C. Mason 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).

  • Power unit
    Patent number: 5201889
    Abstract: For a given vehicle speed the data in the maps is read out, and combined using weighting factors to determine the merit figure. The merit figures for the different possible gear ratios are compared and the ratio which gives the highest merit figures is selected.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: April 13, 1993
    Assignee: Lucas Industries public limited company
    Inventor: Peter C. Mason
  • Precious metals recovery from refractory carbonate ores
    Patent number: 4979987
    Abstract: Precious metal values, particularly gold and silver, are liberated from refractory, carbonate ores by adjusting the molar ratio of sulfide to total acid consumers to between about 1.2 and about 3.2 in the ore feed to a pressure oxidation process. The ore is contacted with oxygen to oxidize sulfide in the ore with at least about 65 percent of the sulfide oxidation occurring in a first oxidation zone at a temperature above about 360.degree. F. The oxidation of sulfide forms at least about 5 grams of free sulfuric acid in the first oxidation zone. The oxidation process is continued in subsequent oxidation zones. A gas stream is removed from the oxidation zones and oxygen is separated from carbon dioxide and other inerts in the gas stream and the purified oxygen is recycled to the oxidation zones.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: December 25, 1990
    Assignee: First Miss Gold, Inc.
    Inventors: Peter C. Mason, Patrick T. O'Kane, Robert Pendreigh
  • Power handle for use in conjunction with an electric toothbrush head
    Patent number: D454251
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: March 12, 2002
    Assignee: Conair Corporation
    Inventors: Gregory De Swarte, Peter C. Mason, Jr., Scott P. Liu, Amy C. Liu, Vito James Carlucci, Peter J. Hill, Martin A. Cohen
  • Hand-held printer
    Patent number: D484906
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: January 6, 2004
    Assignee: Paxar Corporation
    Inventors: Gregory B. Arnold, James A. Makley, Gregory de Swarte, Peter C. Mason, Jr.
  • Hand-held printer
    Patent number: D486512
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: February 10, 2004
    Assignee: Paxar Corporation
    Inventors: Gregory B. Arnold, James A. Makley, Gregory de Swarte, Peter C. Mason, Jr.