Patents by Inventor Hans-Jürgen Wall

Hans-Jürgen Wall 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: 6196277
    Abstract: Disclosed is a method for filling barrels (4), specially kegs, with liquids, wherein at least one gas is dissolved. The barrel (4) is pre-stressed using a gas before the liquid is filled. Liquid is then fed into the barrel (4) by means of a filling valve (2) pertaining to a filling station (1) and connected to a feed line (3, 8). During filling, the pre-stress gas contained in the barrel (4) is evacuated. In order to guarantee economical and ecological product processing, the pre-stress gas in the barrel (4) is pre-stressed at only a partial pressure which corresponds approximately to the saturation pressure of the CO2 or N2 which is dissolved in the filled liquid. The flow rate speed is measured in the product feed line and is directly adjusted by adapting the volumetric flow rate of said product.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: March 6, 2001
    Assignee: Gea Till GmbH & Co.
    Inventors: Volker Till, Hans-Jürgen Wall