Patents by Inventor Rolf-Erhard Schmitt

Rolf-Erhard Schmitt 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).

  • Neutralizing agent for paper products
    Patent number: 5322558
    Abstract: A neutralizing agent for effective but mild mass de-acidification of books and other paper products, consisting of a solution of one or more kinds of double alkoxides, each with one alkoxide of a metal promoting solubility, such as group IV metals, aluminum or tin, and one alkoxide of a metal binding the acids in the paper, such as alkali or alkaline earth metals, wherein a non-polar solvent can be used, which exhibits good compatibility with the archive materials.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: June 21, 1994
    Assignee: Battelle Ingenieurtechnik GmbH
    Inventors: Jurgen Wittekind, Rolf Eggersdorfer, Peter Schwerdt, Karl-Heinz Scherer, Rolf-Erhard Schmitt
  • Method of producing a solid product containing cement for storing tritium water in an accessible terminal storage facility
    Patent number: 4842773
    Abstract: The invention is directed to a method for producing a cement product for terminal storage of tritium water wherein activated bentonite capable of swelling is dispersingly mixed with the tritium water and the suspension obtained thereby is subjected to a swelling operation. The swollen suspension is dispersingly mixed with cement. The cured product has a water content of over 75% by weight.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: June 27, 1989
    Assignees: Deutsche Gesellschaft fur Wiederaufarbeitung von Kernbrennstoffen mbH, Hanover Battelle Institut E.V.
    Inventors: Willfried Kunz, Winfried Gramatte, Rolf-Erhard Schmitt, Udo Pohl