Heat sealing device

Details Heat sealing device Heat sealing device

1986-01-07

1988-04-12

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With work feeding or handling means

100 93RP, 1565831, 16510426, 219469, B32B 3100

Patent

active

047372311

ABSTRACT:
Disclosed herein is a device for sealing portions of an overlapped pair of single or composite films by contacting or facing an appropriately heated sealing surface of a heat sealing member. The heat sealing member is provided with the sealing surface in a part of its outer surface and with a sealed chamber therewithin in the vicinity of the sealing surface. The sealed chamber contains under decompression working liquid for evaporating and generating high-temperature condensable gas by being heated. The heat sealing member further has a heat source in the interior or the exterior thereof adjacent to at least a part of the sealed chamber for heating the working liquid.

REFERENCES:
patent: 1134227 (1915-04-01), Reindel
patent: 2794485 (1957-06-01), Ashton et al.
patent: 2955184 (1960-10-01), Grindrod
patent: 3562489 (1971-02-01), Lenk
patent: 3982991 (1976-09-01), Hamm et al.
patent: 4170262 (1979-10-01), Marcus
patent: 4288967 (1981-09-01), Seko et al.
patent: 4288968 (1981-09-01), Seko et al.

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