Apparatus for manufacture of integral reclosable bag

Details Apparatus for manufacture of integral reclosable bag Apparatus for manufacture of integral reclosable bag

1993-02-24

1994-02-08

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

425141, 4253824, 425462, 425466, B29C 4716

Patent

active

052844307

ABSTRACT:
A cast film die used to integrally form closure elements on a film of varying thickness has a removable lower die lip with grooves in the shape of the closure elements and a choker bar located in the manifold of the die to control the amount of extrudate that flows to the grooves.

REFERENCES:
patent: 3680997 (1972-08-01), Dukert et al.
patent: 3761211 (1973-09-01), Parkinson
patent: 4515647 (1985-05-01), Behr
patent: 4533308 (1985-08-01), Cloeren
patent: 4536362 (1985-08-01), Donaldson
patent: 4669965 (1987-06-01), Murakami
patent: 4695236 (1987-09-01), Predohl et al.
patent: 5053091 (1991-10-01), Giljam et al.

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