Packaging method and a device therefore

Details Packaging method and a device therefore Packaging method and a device therefore

1984-09-18

1987-06-30

Kazenske, E. R.

Package making

Methods

With contents treating

53141, 53453, 53487, B65B 4702, B65B 4710, B65B 5306

Patent

active

046760490

ABSTRACT:
A method of forming a form stable, preferably product contour tight package in a roller operated packaging machine. A thermoformable web (14) is pre-heated to a suitable forming temperature and the web is thereafter supplied to a mould tray (20). The tray is provided with vacuum passages and/or other arrangements for forced forming to the contour of the tray. A sealing tool (22) surrounds, completely or partly, the periphery of the tray and is used for sealing of the second web to the first one. The heat of the sealing tool is superposed, primarily by heat radiation, onto the cooling, preferably such that a boarder region (26) head/cold is created in the marginal portion of the mould tray.

REFERENCES:
patent: 2958168 (1960-11-01), Vogt
patent: 3383260 (1968-05-01), Mojonnier
patent: 3545163 (1970-12-01), Mahaffy et al.
patent: 3956867 (1976-05-01), Utz et al.
patent: 4034536 (1977-07-01), Mahaffy et al.
patent: 4294056 (1981-10-01), Paulsen et al.
patent: 4366663 (1983-01-01), Grebe

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