Patents by Inventor Thomas J. Appleman

Thomas J. Appleman 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).

  • Lubricants for reciprocating air compressors
    Patent number: 4751012
    Abstract: Synthetic lubricants comprising 15 to 45 weight percent of an ester of a monohydric alcohol of 4 to 18 carbon atoms with one or more aromatic or alkane dicarboxylic acids having 4 to 18 carbon atoms blended with 85 to 55 weight percent of one or more polyether polyols having a number average molecular weight from about 400 to 5000. The blends are compounded with antioxidants, corrosion inhibitors, and metal deactivators to produce a superior lubricant for reciprocating air compressors which gives a long life to the compressors.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: June 14, 1988
    Assignee: The Dow Chemical Company
    Inventors: Eldon L. Ward, Philip W. McGraw, Thomas J. Appleman
  • Lubricants for reciprocating air compressors
    Patent number: RE33658
    Abstract: Synthetic lubricants comprising 15 to 45 weight percent of an ester of a monohydric alcohol of 4 to 18 carbon atoms with one or more aromatic or alkane dicarboxylic acids having 4 to 18 carbon atoms blended with 85 to 55 weight percent of one or more polyether polyols having a number average molecular weight from about 400 to 5000. The blends are compounded with antioxidants, corrosion inhibitors, and metal deactivators to produce a superior lubricant for reciprocating air compressors which gives a long life to the compressors.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: August 6, 1991
    Assignee: The Dow Chemical Company
    Inventors: Eldon L. Ward, Philip W. McGraw, Thomas J. Appleman