Patents by Inventor S. Gordon Demetre

S. Gordon Demetre 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: 4013284
    Abstract: An improved decurler device, in the form of a rounded, substantially M-shaped vacuum bar, is provided for drawing curled sheet material into its rounded trough where a multiplicity of spaced vacuum openings are located thereby reversely bending the sheet and taking out the curl previously imparted to it. The bar is made of a reinforced plastic material with a hard and very smooth surface which wears well and does not scratch, mar or otherwise destruct the face of the sheet materials. A dispersion of fine carbon particles in the surface material of the bar is also effective to eliminate static electric charges built up in the sheet material incident to previous processing operations.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: March 22, 1977
    Assignee: Eastern Graphic Products, Inc.
    Inventor: S. Gordon Demetre