Patents by Inventor Kenneth B. Loritsch

Kenneth B. Loritsch 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).

  • Purified quartz and process for purifying quartz
    Patent number: 5037625
    Abstract: Quartz is purified by removing mineral impurities, particularly alkali metal impurities, from within the quartz crystal lattice structure. According to the disclosed process, quartz crystals are subjected to a pretreatment that removes surface bound impurities and then contacted with gaseous HCl at a temperature of from 800.degree. C. to 1600.degree. C. for a period of time of from a few minutes to several hours, thereby diffusing the mineral impurities to the quartz crystal surface where they form salts with chloride ion, removing the salts, and recovering the purified quartz crystals.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: August 6, 1991
    Assignee: The Feldspar Corporation
    Inventors: Kenneth B. Loritsch, Robert D. James
  • Purified quartz and process for purifying quartz
    Patent number: 4983370
    Abstract: Quartz is purified by removing mineral impurities, particularly alkali metal impurities, from within the quartz crystal lattice structure. According to the disclosed process, quartz crystals are subjected to a pretreatment that removes surface bound impurities and then contacted with gaseous HCl at a temperature of from 800.degree. C. to 1600.degree. C. for a period of time of from a few minutes to several hours, thereby diffusing the mineral impurities to the quartz crystal surface where they form salts with chloride ion, removing the salts, and recovering the purified quartz crystals.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: January 8, 1991
    Assignee: The Feldspar Corporation
    Inventors: Kenneth B. Loritsch, Robert D. James