Method for applying a heat shrinkable sleeve to a plastic bottle

Details Method for applying a heat shrinkable sleeve to a plastic bottle Method for applying a heat shrinkable sleeve to a plastic bottle

1978-07-03

1979-10-30

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Utilizing heat releasable stress to reshape solid workpiece

156 86, B29C 1300

Patent

active

041728734

ABSTRACT:
Heat sensitive containers with loosely fitting circumferentially heat shrinkable sleeves are conveyed linearly while rotating, past heating means for impinging hot gas against the sleeve serially from the bottom to the top thereof to heat shrink the sleeves around the bottles; also disclosed is delivering different amounts of heat per unit height to at least two axially adjacent horizontal zones of said sleeve.

REFERENCES:
patent: 3396460 (1968-08-01), Wetmore
patent: 3470046 (1969-09-01), Verdin
patent: 3778220 (1973-12-01), Ahrendt et al.
patent: 4059400 (1977-11-01), Heckman et al.
patent: 4072553 (1978-02-01), Braker et al.
patent: 4092382 (1978-05-01), Heckman et al.

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