Patents by Inventor Frederick J. Hunter

Frederick J. Hunter 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).

  • Fiber reinforced rubber products
    Patent number: 4959267
    Abstract: A reinforcing fiber is provided for use in fiber-reinforced rubber products. The reinforcing fiber has a first coating layer of a cured guanide compound over which is a second layer of an adhesive for bonding the fiber to rubber, the adhesive usually being a cured resorcinol formaldehyde latex composition. The coated fiber is embedded in uncured rubber which is then cured to create a fiber-reinforced rubber product.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: September 25, 1990
    Assignee: Du Pont Canada Inc.
    Inventors: Howard C. H. Ng, Frederick J. Hunter