Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1974-01-11
1976-02-10
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156530, 156581, 156583, 53329, 53390, B32B 3100, B65B 728
Patent
active
039376451
ABSTRACT:
This apparatus provides a means of sealing a plastic film cover over the open end of a plastic food container to render the container airtight and suitable for storage in a dispensing machine. The apparatus is self-contained and includes a base which carries a resiliently mounted support frame for the container, and a spindle-less dispensing frame for the film. A lever arm is pivotally mounted to the base rearwardly of the container support frame for swinging movement toward and away from the support frame. The lever carries a heat sealing head located forwardly of the pivot mounting for alignment with the container during heat sealing, and a cutter located rearwardly of the heat sealing head for clamping and severing the film adjacent the container support frame just prior to heat sealing. The heat sealing head includes a platen having peripheral margin portions registrable with the container flanges and grooved to provide improved heat sealing of the film to the container.
REFERENCES:
patent: 3012387 (1961-12-01), Jacobs et al.
patent: 3015600 (1962-01-01), Cook
patent: 3286437 (1966-11-01), Cole
patent: 3295295 (1967-01-01), Stewart et al.
patent: 3354605 (1967-11-01), Amberg et al.
patent: 3458975 (1969-08-01), Burke
patent: 3627611 (1971-12-01), Bonk
patent: 3656682 (1972-04-01), Giuliani
patent: 3817816 (1974-06-01), Watt
patent: 3823054 (1974-07-01), Balzer et al.
Ascoli Fred
Hermann Robert R.
Drummond Douglas J.
Standard Container Company
Wityshyn M. G.
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