Patents by Inventor Fred R. Gamble

Fred R. Gamble 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: 4014815
    Abstract: The regeneration of spent metal catalysts is accomplished by treatment with a sulfurous atmosphere at a pressure of at least 0.10 atmospheres and at a controlled high temperature of between C. (preferably between C., and most preferably between C.) for a time sufficient for the selective formation of sulfides of carbon and sulfides of vanadium or lead which sulfides are characterized by having high volatility and solubility in the sulfurous atmosphere and which vanadium and carbon sulfides are selectively removed from the catalyst within the stated temperature range.The coke and vanadium or lead removal methods disclosed are selective in that the coke and vanadium or lead are removed without removing the active catalytic components.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: March 29, 1977
    Assignee: Exxon Research and Engineering Company
    Inventors: Fred R. Gamble, Jr., Ricardo B. Levy
  • Patent number: 3980761
    Abstract: Finely divided, stoichiometric titanium disulfide is prepared by directly reacting metallic titanium with less than stoichiometric amounts of elemental sulfur at a temperature between about and 1, to form finely divided, nonstoichiometric, titanium-rich titanium disulfide. The titanium-rich titanium disulfide is then annealed at a temperature between about and about in an atmosphere having a sulfur partial pressure approximately equal to the sulfur partial pressure of stoichiometric titanium disulfide whereby the sulfur in the atmosphere reacts with the titanium-rich titanium disulfide to form a finely divided, stoichiometric titanium disulfide.
    Type: Grant
    Filed: May 9, 1975
    Date of Patent: September 14, 1976
    Assignee: Exxon Research and Engineering Company
    Inventors: Arthur H. Thompson, Fred R. Gamble