Patents by Inventor Robert I. Carvalho

Robert I. Carvalho 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).

  • Fabric reinforced multiple ply conveyor belt
    Patent number: 4547422
    Abstract: A polyvinyl chloride composition fabric reinforced belt said composition comprising a blend of 100 parts of polyvinyl chloride with about 10 to 30 parts of a copolymer of butadiene acrylonitrile.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: October 15, 1985
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Brian H. Oliver, Harold A. Blinn, Robert I. Carvalho