Patents by Inventor Klaus-Dieter Neumann

Klaus-Dieter Neumann 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).

  • Suction tube device
    Patent number: 5133484
    Abstract: A liquid siphon for emptying containers such as drums includes a main suction pipe, of a relatively large diameter, and an auxiliary suction pipe, of a relatively small diameter, which auxiliary suction pipe is coextensive with the main suction pipe and extends slightly beyond the main suction pipe. At the location where the siphon is attached to a hose, a stopcock is provided which is used to close the main suction pipe when the siphon begins to draw air so that the auxiliary suction pipe along pulls liquid from the container. In this way residual liquid is removed from the container.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: July 28, 1992
    Assignee: Schering Aktiengesellschaft
    Inventors: Wolfgang Globert, Frank Meyer, Klaus-Dieter Neumann, Herbert Richter, Richard Wolkert