Patents by Inventor Manfred Boog

Manfred Boog 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).

  • Composite tubular body
    Patent number: 4530378
    Abstract: Tubular body of fused quartz and quartz glass with a seamless transition from the fused-quartz zone to the quartz-glass zone. The body is manufactured continuously in a hollow rotating metal cylinder by disposing silica against the rotating mold and adding thereto, such as in an annular zone therein, rock crystal or synthetic silicon dioxide and fusing the rock crystal or synthetic silicon dioxide to the fused silica whereby no seam is formed.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: July 23, 1985
    Assignee: Heraeus Quarzschmelze GmbH
    Inventors: Manfred Boog, Werner Jakob