Method for forming a plastic fluid container with an integral ha

Details Method for forming a plastic fluid container with an integral ha Method for forming a plastic fluid container with an integral ha

1980-08-15

1982-06-15

Derrington, James H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156227, 264296, 264318, B29D 2310

Patent

active

043349420

ABSTRACT:
A process and apparatus is disclosed for thermoforming an all plastic carton used to house a fluid with integral, kidney-shaped depressions in adjacent side walls of the carton to serve as handle members to aid in pouring the fluid contents from the carton. A pair of mandrels are inserted through opposite ends of a tubular enclosure formed from the carton blank. The mandrels are provided with a toroidal shaped cavity where they meet inside the enclosure. The enclosure is heated and a pair of complementally shaped, dies are rotated exteriorly of the enclosure into the toroidal cavity in the mandrels on adjacent sidewalls of the carton to form the handle depressions.

REFERENCES:
patent: 3116002 (1963-12-01), Crawford
patent: 3120335 (1964-02-01), Egleston et al.
patent: 3928522 (1975-12-01), Farrell
patent: 3944642 (1976-03-01), Uhlig
patent: 4126262 (1978-11-01), Thompson
patent: 4214697 (1980-07-01), Manning

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