Patents by Inventor Richard L. Coleman

Richard L. Coleman 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: 4444669
    Abstract: A continuous process for the preparation of high dropping point i.e. above F. lithium complex soap thickened grease composition comprising the steps of continuously saponifying a hydroxy C.sub.2 -C.sub.24 monocarboxylic acid and a C.sub.2 to C.sub.12 dicarboxylic acid with a lithium base in a lubricating oil substrate and then continuously dehydrating the mixture.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: April 24, 1984
    Assignee: Texaco Inc.
    Inventors: Arnold C. Wittse, Jr., Don A. Carley, Richard L. Coleman, deceased
  • Patent number: 4297227
    Abstract: A continuous process for manufacture of soap thickened grease compositions where a saponifiable material and a metal base are continuously introduced at an elevated temperature into a saponification zone maintained at superatmospheric pressure and saponified under turbulent conditions, wherein the saponified product is mixed with an aqueous solution of oil-insoluble additive materials at a superatmospheric pressure sufficient for maintaining all water in the liquid phase, wherein the saponified material-additive mixture is heated to an elevated temperature of at least F.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: October 27, 1981
    Assignee: Texaco Inc.
    Inventors: Arnold C. Witte, Richard L. Coleman
  • Patent number: 4132658
    Abstract: A process for manufacturing high dropping point aluminum complex soap thickened greases having selected consistency, water resistance, rheopectic properties, and antiwear properties.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: January 2, 1979
    Assignee: Texaco Inc.
    Inventors: Richard L. Coleman, Arnold C. Witte, Jr., Aubrey L. Stone
  • Patent number: 4053424
    Abstract: A grease compound of a base oil, a thickener, and minor synergistic amounts of the extreme pressure agent combination of zinc dialkyldithiophosphate, the reaction product of butyl acid phosphate and dodecyl aniline, and Bis(.beta.-chlorophenethyl) disulfide.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: October 11, 1977
    Assignee: Texaco Inc.
    Inventor: Richard L. Coleman
  • Patent number: 3933657
    Abstract: A grease may be made having synergistic extreme pressure properties using a major amount of a base oil and a thickener and a minor amount of low density polyethylene and known extreme pressure enhancing additives.
    Type: Grant
    Filed: September 12, 1974
    Date of Patent: January 20, 1976
    Assignee: Texaco Inc.
    Inventors: Leonard S. Seni, Arnold C. Witte, Richard L. Coleman