Patents by Inventor Wilhelm Siegel

Wilhelm Siegel 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).

  • Coupling member for vessels for use in two-way extraction systems
    Patent number: 4595217
    Abstract: This invention relates to a coupling member for use in the liquid-tight and gas-tight connection of vessels, of different sizes to a two-way extraction system. The coupling part comprises two parts, a cylindrical adaptor part and a part comprised of a union nut. The cylindrical adaptor part has, on its side facing the extraction system, a diameter compatible with the extraction system, and the side facing the vessel mouth, a diameter compatible with the vessel mouth. Sealing elements are provided for use with the vessel mouth for sealing thereof with the coupling member. The union nut has an inner thread adapted to couple to the vessel mouth and an outer thread adapted to couple to the extraction system.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: June 17, 1986
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventor: Wilhelm Siegel