Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Patent
1986-08-01
1988-11-15
Thurlow, Jeffery
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
264565, 264566, 425 721, 4253871, 425392, 425403, B29C 4790
Patent
active
047845970
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.
REFERENCES:
patent: 3280429 (1966-10-01), Haley
patent: 3317951 (1967-05-01), Hureau
patent: 3395205 (1968-07-01), Petzetakis
patent: 3904334 (1975-09-01), Yazawa et al.
patent: 4204819 (1980-05-01), Ushioda et al.
patent: 4251199 (1981-02-01), Imaizumi et al.
patent: 4279580 (1981-07-01), Hayashi et al.
Super Bag Company, Ltd.
Thurlow Jeffery
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