Automatic continuous vacuum packaging method and apparatus

Details Automatic continuous vacuum packaging method and apparatus Automatic continuous vacuum packaging method and apparatus

1980-08-06

1983-12-13

Bray, W. D.

Package making

Methods

With contents treating

53373, 53459, 53479, 53512, 53567, 53570, B65B 3102, B65B 902

Patent

active

044198540

ABSTRACT:
A vacuum packaging method and apparatus for packaging solid objects such as food products of various shapes automatically. A web of tubular plastic film is supplied from a roll and drawn over an opening core which opens the plastic film into a rectangular shape. The film is then drawn over the object to be packaged and cut to a predetermined length. In one embodiment, the front end of the film is then sealed and the object urged towards the sealed end. In another embodiment, both ends of the film are left open at this point. The object with the film positioned therearound is transferred to a vacuum chamber. Prior to the chamber being evacuated, tension is applied to the film so as to prevent the formation of creases.

REFERENCES:
patent: 2847806 (1958-08-01), Wang
patent: 3557526 (1971-01-01), Hartman
patent: 4069643 (1978-01-01), Young et al.

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