Patents by Inventor Theodor Schmidhauser

Theodor Schmidhauser 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).

  • Closure device for specimen-containers such as test tubes
    Patent number: 4396381
    Abstract: A closure device for a test tube to be used with an ultra-centrifuge comprising an insertion member, the insertion member including a bottom section which is adopted to be inserted into the test tube and has an outer diameter substantially equal to the inner diameter of the test tube and an upper section which extends upwardly from the test tube and has an outer diameter greater than the inner diameter of the said test tube, an abutment positioned outside of the test tube about the upper edge thereof, said abutment being adopted under the influence of centrifugal force to press against the outer surface of the upper edge of the test tube.
    Type: Grant
    Filed: January 6, 1981
    Date of Patent: August 2, 1983
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Peter Fanger, Rolf Naff, Theodor Schmidhauser