Patents by Inventor Edward C. Gehweiler

Edward C. Gehweiler 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).

  • Separating laminated layers
    Patent number: 4216048
    Abstract: Laminate layers, such as a label and its liner, are separated by directing both layers at an end of the laminate around a sharp bend to cause shearing and lengthwise offset between the layers, and then releasing the end, the overall orientation being such that, upon release of the end, a differential in the forces that tend to straighten the layers drives apart the shear-weakened adhesive bond. The bending is carried out by sliding the end around a sharply curved surface.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: August 5, 1980
    Assignee: W. H. Brady Co.
    Inventor: Edward C. Gehweiler