Patents Assigned to Establissement Valvin
  • Apparatus for purifying carbon dioxide vapors of fermenting liquids
    Patent number: 4112829
    Abstract: A condenser, connected to receive carbon dioxide and vapors from a liquid fermenting in a container, comprises reflux tubes with baffles in a unit cooled to about -50.degree. C, whereby the vapors condense, reflux and are collected in a funnel from where they flow down a tube dipping into the fermenting liquid. The purified carbon dioxide passes out through an exhaust pipe and may be solidified.
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: September 12, 1978
    Assignee: Establissement Valvin
    Inventors: Elisabeth Michele Poinsard, Robert Gaston Poinsard