Patents by Inventor Berthold Scholtz

Berthold Scholtz 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).

  • Multistage vertical extractor for liquid-liquid counterflow extraction
    Patent number: 3970432
    Abstract: A liquid-liquid counterflow extractor has a plurality of stacked stages each of which is provided with a mixer and a separator, the stages being traversed in succession by an upwardly flowing relatively low-density (light) phase and downwardly by the relatively high-density (heavy) phase. The separations of adjacent stages have lateral outlets which can be selectively connected to the inlets of a pump which can serve to displace one of the phases from one stage to another or to circulate a phase within one stage.
    Type: Grant
    Filed: March 6, 1974
    Date of Patent: July 20, 1976
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Hans-Martin Stonner, Berthold Scholtz, Rainer Hartmann