Patents by Inventor Ralf Wiesmann

Ralf Wiesmann 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 introducing CO2 snow into containers in order to cool the content of said containers or to cool the containers themselves
    Patent number: 6427482
    Abstract: Apparatus for the introduction of CO2 snow into containers for cooling the container contents or the container, comprises a CO2 snow generating device for generating the CO2 snow, a CO2 snow injection device connected to the CO2 snow generating means and having a snow tube for injecting the generated CO2 snow into the container, a the CO2 gas separating arrangement for separating CO2 gas and CO2 snow in the region of the snow tube, and the CO2 gas extraction arrangement for extracting separated the CO2 gas, the CO2 gas separating arrangement comprises an outer tube surrounding the snow tube and arranged coaxially with the outer tube projecting beyond the snow tubed in longitudinal direction thereof at the CO2 snow delivery side of the snow tube and being connected to the CO2 gas extraction arrangement in the region of the opposite side.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: August 6, 2002
    Assignee: Craft Tech gbr
    Inventors: Klaus Lösche, Gerhard Dirksen, Ralf Wiesmann, Dirk Sikken