Carton top sealing mechanism

Details Carton top sealing mechanism Carton top sealing mechanism

1990-12-04

1992-02-04

Spruill, R. L.

Package making

Closing packages and filled receptacles

By means adapted to engage outturned seam of package cover

100269A, 1565833, B65B 5114

Patent

active

050850296

ABSTRACT:
A carton top sealing mechanism for use in processing thermoplastic coated paperboard cartons on a forming, filling and sealing machine. The top sealing mechanism includes oppositely disposed fixed and movable sealing jaws, between which heated adjacent sealing fins of a gable top carton are positioned. A pneumatic bladder or membrane is operatively connected to the movable sealing jaw to move same upon being inflated to thereby squeeze the sealing fins between the jaws and seal same together.

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patent: 4193341 (1980-03-01), Clements et al.
patent: 4581873 (1986-04-01), Knuppertz et al.
patent: 4767492 (1988-08-01), Fukusima et al.

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