Patents by Inventor Helmut Wolter

Helmut Wolter 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).

  • Device for emission-free sampling of volatile liquids
    Patent number: 4712434
    Abstract: A device for emission-free sampling of volatile liquids comprises a 4-way tap from which lead two lines, which can be connected together, from and to the container holding the liquid to be tested and two other lines, which can also be connected together, lead to a sample bottle which can be sealed and which can be connected to the device. The device further comprises a supply line for an inert flushing medium, which joins the line leading into the sample bottle in the region of the sample bottle, and a discharge line for the inert flushing medium, which leads from the line coming out of the sample bottle in the region of the sample bottle and proceeds to a disposal system.
    Type: Grant
    Filed: October 1, 1986
    Date of Patent: December 15, 1987
    Assignee: EC Erdolchemie GmbH
    Inventors: Jens Herwig, Hagen Norenberg, Friedhelm Bergmann, Manfred Stiller, Horst Schlemmermeyer, Wilfried Schmidt, Hilmar Straube, Helmut Wolter