Web heating device

Details Web heating device Web heating device

1997-06-27

1998-12-15

Culver, Horace M.

Package making

Progressively seamed cover web or web folds

With closing of web between package units

533759, 533762, 156496, 493302, B65B 5126, B65B 5120, B65B 920

Patent

active

058485171

ABSTRACT:
For use in forming a web W into a tubular shape, and heat-sealing an inner surface of outer edge of the web and an outer surface of inner edge of the web to provide a lap, a web heating device for heating the outer edge inner surface of the web with hot air before heat-sealing comprises transport means for transporting the web W along a predetermined path, a nozzle 27 having hot air outlet openings 67 directed outward as opposed to the outer edge inner surface of the web W to be transported by the transport means, and a baffle plate 32 so disposed as to be opposed to the hot air outlet openings 67 with the outer edge of the web W positioned therebetween.

REFERENCES:
patent: 2899875 (1959-08-01), Leasure
patent: 3086336 (1963-04-01), Rausing et al.
patent: 3562920 (1971-02-01), Vuilleumier et al.
patent: 3884746 (1975-05-01), Loliger et al.
patent: 3925963 (1975-12-01), Greenawalt
patent: 4103473 (1978-08-01), Bast et al.
patent: 5562795 (1996-10-01), Landrum et al.

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