Patents Examined by Price Willis, Jr.
  • Patent number: 5529708
    Abstract: A composition comprising: (1) a susceptor of magnetically coupled radio frequency energy comprising a non-magnetic particulate substrate, e.g., an electrically insulative material in particulate form, bearing a thin magnetic coating, e.g., a magnetic inorganic film, and (2) a matrix that is substantially non-reflective of radio frequency energy, e.g., silicone rubber, which matrix can be heated upon the composition's being subjected to magnetically coupled radio frequency energy. It has been discovered that thin magnetic coatings on non-magnetic particles provide energy transfer with induction heaters equal to or better than many commonly used solid susceptor particles. It has also been discovered that the temperature of the composition of this invention can be regulated so as not to exceed a predetermined temperature.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: June 25, 1996
    Assignee: Minnesota Mining and Manufacturing Co.
    Inventors: Charlotte M. Palmgren, Craig S. Chamberlain, Brian J. Fish
  • Patent number: 5196130
    Abstract: A tris[4-(chlorophenoxy)phenyl] phosphate of the formula: ##STR1## wherein n has a value of 1 to 5. This compound is effective as a lubricity additive for high temperatures lubricants.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: March 23, 1993
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Lois J. Gschwender, Carl E. Synder, Jr.
  • Patent number: 5062977
    Abstract: This invention relates to additives to lubricants with antiwear and extreme-pressure effect consisting of asymmetric dihydrocarbyl polysulphides containing a hydrocarbyl polysulphide group R-S.sub.x - in a vicinal position of a secondary or tertiary alcohol, and to lubricating compositions containing these additives. The additives are prepared by reaction of a basic salt of a hydrocarbyl (poly)sulphide either with a compound containing at least one epoxy group or with an alpha-hydroxylated organic thiosulphate.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: November 5, 1991
    Assignee: Elf France
    Inventors: Laurent Germanaud, Patrick Azorin, Lhopital Michel