Patents by Inventor Lyle E. Gast

Lyle E. Gast 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).

  • Tetrasulfide extreme pressure lubricant additives
    Patent number: 4218332
    Abstract: A novel class of compounds has been prepared comprising the tetrasulfides of C.sub.18 hydrocarbons, C.sub.18 fatty acids, and C.sub.18 fatty and alkyl and triglyceride esters. These tetrasulfides are useful as extreme pressure lubricant additives and show potential as replacements for sulfurized sperm whale oil.
    Type: Grant
    Filed: March 20, 1979
    Date of Patent: August 19, 1980
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Arthur W. Schwab, Lyle E. Gast, Harold E. Kenney
  • Alkyd resins modified with tetrafluoroethylene adduct of conjugated triglycerides
    Patent number: 4174329
    Abstract: Cycloaddition reaction products of tetrafluoroethylene and conjugated triglyceride oils have been prepared and used in the modification of alkyd resins. Clear exterior coatings formulated from these resins are characterized by superior durability properties, including resistance to checking, cracking, flaking, and erosion.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: November 13, 1979
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Edward W. Bell, Lyle E. Gast
  • Triglyceride oil-derived water-dispersible urethane resin coatings
    Patent number: 4094838
    Abstract: A novel class of water-dispersible urethane resin coating compositions is prepared from triglyceride oils by a three-step, one kettle process. The steps of preparation are all characterized by low energy reaction conditions and the resultant coating compositions are unexpectedly water-dispersible at acid values as low as about 30.
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: June 13, 1978
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Wilma J. Schneider, Lyle E. Gast
  • Bis(methyl n-octadecanoate-9(10)-yl) sulfides and methods, lubricant compositions
    Patent number: 3991089
    Abstract: Load-bearing lubrication compositions are prepared by adding to lubricating oil base stocks small amounts of sulfurized oleic alkyl esters or sulfurized alkyl esters of oleic acid-containing vegetable oils. A method of preparing the sulfurized fatty compounds is also disclosed.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: November 9, 1976
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Arthur W. Schwab, Lyle E. Gast