Patents Assigned to Super Bag Company, Ltd.
  • Apparatus for producing blown film
    Patent number: 4784597
    Abstract: A bubbler stabilizer for a blown film extrusion apparatus has a shaft mounted on an extrusion die of the apparatus, a pair of supporting members mounted on the shaft and spaced a predetermined distance from each other, and a plurality of lengths of coil spring extending between the peripheral portions of the supporting members with the lengths being spaced peripherally at intervals of a predetermined size around the supporting members. The coil spring lengths extend in a skew position relative to the axis of the shaft.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: November 15, 1988
    Assignee: Super Bag Company, Ltd.
    Inventor: Saburo Akane