Patents by Inventor Hans-Georg Ritt

Hans-Georg Ritt 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).

  • Method of making tubular vials and ampules
    Patent number: 4516998
    Abstract: The present invention relates to a new method of making tubular vials and ampules from glass tubing. The method according to this invention is essentially characterized in that the glass tubing used is closed at both ends and has a dot-shaped opening close to one of the sealed ends. The opening can be sealed by a film to prevent impurities from entering the glass tubing. Throughout the operational process in the production of vials and ampules, a slight excess pressure exists in the glass tubing by applying heat, which further prevents impurities from entering the glass tubing.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: May 14, 1985
    Assignee: Schott-Ruhrglas GmbH
    Inventors: Hans-Georg Ritt, Hartmut Luneberg, Reinhard Mannl, Alfred Grillmeier