Patents Assigned to Anker-Schiffarts-Gesellschaft mbH & Co. KG
  • Valve bag
    Patent number: 4111354
    Abstract: A valve bag for bulk materials has a filler valve inserted in an end closure section and consisting of a tube of flexible material which passes through the end closure section and a wire spring attached to the tube and bearing against the end closure section for folding over the tube to pinch off the tube and thereby close the valve automatically after the bag has been filled. Preferably, the valve bag when empty is folded so as to hold the spring in its stressed condition with the filler valve open. The spring may be shaped as an S, Z or 8.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: September 5, 1978
    Assignee: Anker-Schiffarts-Gesellschaft mbH & Co. KG
    Inventor: Dieter Brunker