B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/1020
B29D 7/02 (1980.01)
Patent
CA 1159213
METHOD AND APPARATUS FOR PRODUCING A PLASTIC CONTAINER HAVING A RECLOSABLE FASTENER ABSTRACT OF THE DISCLOSURE An apparatus for producing a plastic container having occludable closure strips comprises a source`for the closure strips, a rotatable casting cylinder having a pair of spaced apart circumferential grooves defined therein, a mechanism for advancing the closure strips to the casting cylinder, an extruder for casting a plastic film onto the casting cylinder so that it becomes connected to base portions of the closure strips, and a chill roll for receiving the combination of plastic film and closure strips to provide cooling . S P E C I F I C A T I O N 1.
377354
Hopley William G.
Union Carbide Corporation
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