Method and apparatus for packaging

Details Method and apparatus for packaging Method and apparatus for packaging

1980-01-10

1981-07-21

Wityshyn, Michael G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

53456, 53565, 53375, 156358, 1565802, 156581, 493133, B29C 2708, B31B 128

Patent

active

042796750

ABSTRACT:
A method and apparatus for closing and sealing the end of a container having a tubular body wherein the container and closure portion includes front, rear and side panels each extending axially from the tubular body in the open position of the end closure. Each of the end closure panels may have a sealing strip defined at its outer end by a scored line with the rear panel including a closure flap-extending from the outer edge of its sealing strip. The end closure panels are folded to a flat closed position by closing jaws with the sealing strips and closure flap projecting axially from the tubular body, after which the sealing strips are sonically welded together. The closure flap and sealing strips are then folded flat, and the closure flap is welded to the outer surface of the front end closure panel.

REFERENCES:
patent: 2433176 (1947-12-01), Van Epps et al.
patent: 3422730 (1969-01-01), Mitzelfelt et al.
patent: 3439392 (1969-04-01), McNab, Jr.
patent: 3468731 (1969-09-01), Obeda
patent: 3505136 (1970-04-01), Attwood
patent: 3602421 (1971-08-01), Spratt, Jr.
patent: 3657033 (1972-04-01), Sager
patent: 3679526 (1972-07-01), Horton
patent: 3905280 (1975-09-01), Egleston et al.
patent: 3956046 (1976-05-01), Tsuchiya et al.

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