Patents by Inventor Richard L. Hamilton

Richard L. Hamilton 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 for producing a foamed panel
    Patent number: 5207957
    Abstract: A method of manufacturing an article having a substructure with a wall having first and second wall surfaces and a molded layer along the first wall surface. The substructure is supported in a tool having first and second die surfaces on either side of the wall. The first die surface is spaced apart from the first wall surface and the second die surface is spaced apart from the second wall surface. A moldable material is injected between the first die surface and the first wall surface under conditions causing said material to exert a force on the wall. The second wall surface is contacted with a fluid under sufficient pressure to create a force on the wall that offsets the force exerted by the material whereby the wall is supported against deformation.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: May 4, 1993
    Assignee: Ford Motor Company
    Inventors: Gerald A. Heath, Richard L. Hamilton, Steven D. McCarthy