Patents by Inventor Richard A. Mellwig

Richard A. Mellwig 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).

  • Apparatus for injection of viscous material
    Patent number: 5066216
    Abstract: The present invention relates to an apparatus for injecting viscous materials. The apparatus includes a vertically adjustable manifold valve which receives a continuously circulating supply of pressurized viscous material. The manifold valve is positioned above a container or mold cavity to be filled with the viscous material. When the manifold valve is opened, the viscous material is injected into the containers or molds.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: November 19, 1991
    Assignee: Binney & Smith Inc.
    Inventors: Robert M. Kowtko, Richard A. Mellwig