Heat sealing apparatus

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With gas – vapor – or flame contact means for work

Patent

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Details

156498, 156581, 1565831, 1565834, B32B 3120, B32B 3104

Patent

active

047923733

ABSTRACT:
A system for heat sealing in conjunction a pair of plastic strips each of having a series of regularly spaced transverse pockets so that the pockets together form chambers separated by webs. The two pocketed strips to be joined are brought together and the strips heat sealed around the pockets to seal the chambers from one another while passing cooling fluid over the pockets so as to avoid distortion or collapse of the pockets.

REFERENCES:
patent: 2855040 (1958-10-01), Gaines
patent: 3152944 (1964-10-01), Monjonnier
patent: 3574028 (1971-04-01), Hurst et al.
patent: 3793115 (1974-02-01), Jindra
patent: 3823052 (1974-07-01), Hargett
patent: 3938298 (1976-02-01), Luhman et al.
patent: 4043858 (1977-08-01), Danowitz
patent: 4169002 (1979-09-01), Larson
patent: 4263256 (1981-04-01), Morle
patent: 4519862 (1985-05-01), Urai et al.

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