Patents by Inventor Andreas Ziemann

Andreas Ziemann 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).

  • Patent number: 4854716
    Abstract: The device for processing bone cement includes a mixing station with a stirrer for mixing the components of the bone cement under vacuum. The device also includes a resting station in which the mixed ingredients may be stationed for a resting period, processing period and curing period. The temperature-dependent reaction time on the polarmarization reaction can be taken into account in determining the discrete time intervals by means of a temperature sensor for sensing ambient temperature. Acoustic and visual signal generating devices are also provided to indicate the end of each time intervals.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: August 8, 1989
    Assignees: Sulzer Brothers Ltd., Allo Pro AG
    Inventors: Edeltraud Ziemann, Andreas Ziemann