Patents by Inventor Bror E. Anderson

Bror E. Anderson 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).

  • Thermographic stencil sheet, assembly and method of making an imaged stencil sheet
    Patent number: 4074003
    Abstract: A stencil sheet of the type including an ink-impervious coating of a heat-flowable composition on an ink-pervious base sheet includes at least two layers of the composition on the base sheet, one layer being adapted for imaging contact with an original and essentially colorless, and the remaining layer being adapted for contact with a sheet receiving fluid material from image openings formed in the coating upon imaging, the remaining layer containing coloring material providing a visible index of the degree of imaging on the receiving sheet.
    Type: Grant
    Filed: May 11, 1976
    Date of Patent: February 14, 1978
    Assignee: Weber Marking Systems, Inc.
    Inventors: Margery L. Schick, Bror E. Anderson
  • Thermographic stencil sheet and method of making an imaged stencil sheet
    Patent number: 4065595
    Abstract: A stencil sheet of the type including an ink-impervious coating of a heat-flowable composition on an ink-pervious base sheet includes two layers of the composition on the base sheet, the first layer having external surfaces made uneven by the unevenness of the underlying base sheet, and the second layer filling the lower areas on one surface of the first layer and providing an even surface on the resulting stencil sheet for intimate contact with an original and attendant advantages.
    Type: Grant
    Filed: November 5, 1974
    Date of Patent: December 27, 1977
    Assignee: Weber Marking Systems, Inc.
    Inventors: Margery L. Schick, Bror E. Anderson