Patents by Inventor Thomas J. Snodgrass

Thomas J. Snodgrass 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).

  • Patent number: 3933562
    Abstract: A method of laminating a plastic sheet onto a surface of a hollow body is disclosed.The method of laminating a plastic sheet onto a surface of a hollow body includes the steps of loading the hollow body into the female die, securing the plastic sheet in a clamping means, heating the clamped sheet to its softening temperature, moving the clamped heated sheet into registry with a male die and the female die, sealing one die of the male die and the female die to one member of the clamping means and the clamped heated plastic sheet to define therewith a sealed chamber, moving the male die toward the clamped heated sheet to form the clamped heated sheet about the male die, moving the male die and the clamped formed heated sheet against the surface of the hollow body in the female die, and applying fluid pressure to the clamped formed heated hollow body to transfer the clamped formed heated sheet to the surface of the hollow body.
    Type: Grant
    Filed: March 1, 1973
    Date of Patent: January 20, 1976
    Assignee: United States Steel Corporation
    Inventors: Ira G. Cruckshank, Thomas J. Snodgrass