Patents by Inventor Garry L. Dumbauld

Garry L. Dumbauld 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).

  • Foaming thermoplastic elastomers
    Patent number: 5070111
    Abstract: A process of making a foamed thermoplastic elastomer is disclosed, and the foam thus produced. The thermoplastic elastomers, which are blends of 90 to 10 parts of rubber and 10 to 90 parts of crystalline polyolefin plastic, are melted, admixed with water under pressure, and released to atmospheric pressure. The resultant foam has good cell structure and low density, and a high percentage of closed (as opposed to interconnecting) cells.
    Type: Grant
    Filed: March 13, 1991
    Date of Patent: December 3, 1991
    Assignee: Advanced Elastomer Systems, L.P.
    Inventor: Garry L. Dumbauld