Patents by Inventor Gaston A. Stroud

Gaston A. Stroud 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).

  • Method of forming sealing gaskets in container closures
    Patent number: 4304744
    Abstract: Method of forming a sealing gasket made from vinyl chloride resin plastisol in container closures made of a high-melting olefin polymer, especially polypropylene. The invention employs a combination of microwave heating and controlled heating by conventional means. The controlled conventional heating raises the temperature of the closure to from 5.degree. to 35.degree. C., preferably 5.degree. to 15.degree. C., below its melting point; at this temperature microwave heating is then introduced to flux the plastisol.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: December 8, 1981
    Assignee: W. R. Grace & Co.
    Inventor: Gaston A. Stroud