Patents by Inventor Richard F. Hanesworth

Richard F. Hanesworth 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).

  • Furan binder composition
    Patent number: 4215206
    Abstract: Furan resin compositions containing aromatic polyester polyols exhibit improved performance as foundry hot box binders.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: July 29, 1980
    Assignee: Ashland Oil, Inc.
    Inventors: Richard F. Hanesworth, Young D. Kim, Gary A. Tolhurst
  • Mold and core wash
    Patent number: 4096293
    Abstract: Disclosed is a foundry core wash made of a hydrocarbon solvent, fumaric acid resin, particulated calcium aluminate and a suspending agent. The core wash has particular utility for sand cores made with an inorganic binder used in pressurized die casting.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: June 20, 1978
    Assignee: Ashland Oil, Inc.
    Inventors: Michael J. Skubon, John J. Spiwak, Richard F. Hanesworth