Patents Assigned to Vaw-Folein-Verarbeitung GmbH
  • Closure cap for container under pressure
    Patent number: 4592477
    Abstract: A mushroom-like closure cap for containers under pressure, such as commercially used glass champagne bottles, made of aluminum or alloys of aluminum, particularly having a volume of 0.5 l, impermeable to gas, easy to reclose, prevents escape of foam when the seal cap is opened and a sharp pressure drop takes place. The mushroom-like closure cap (3) of aluminum metal is affixed to a mushroom stem (4) which has a sealing surface (6) on part B closing the bottle mouth and is corrugated (5) on its part (A) protruding into the bottleneck.
    Type: Grant
    Filed: May 24, 1984
    Date of Patent: June 3, 1986
    Assignee: Vaw-Folein-Verarbeitung GmbH
    Inventors: Heinz Leonhardt, Otto H. Rhein