Film packaging

Details Film packaging Film packaging

1989-12-22

1991-09-03

Coan, James F.

Package making

Methods

Closing package or filled receptacle

533294, 533738, 533739, 53553, 493134, B65B 728, B65B 4702, B65B 5120

Patent

active

050441450

ABSTRACT:
Packaging apparatus, using an upper film (6) pre-heated before contact with a lower film (9) on which products (not shown) are placed, has at least the central region heated by radiant heaters (7) and the marginal regions heated by hot air nozzles (10) at least in the region immediately preceding contact (8) between the upper and lower films.

REFERENCES:
patent: 3508376 (1970-04-01), Bemiss
patent: 3645825 (1972-02-01), Gaunt et al.
patent: 3874145 (1975-04-01), Schmidt
patent: 4133163 (1979-01-01), Wilson
patent: 4626234 (1986-12-01), Oxborrow
patent: 4864802 (1989-09-01), D'Angelo

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