Vacuum packaging system

Details Vacuum packaging system Vacuum packaging system

1975-02-14

1976-03-23

McGehee, Travis S.

Package making

With contents treating

Reshaping

B65B 3102

Patent

active

039451720

ABSTRACT:
A product is vacuum sealed between bottom and top sheets of plastic film by pre-forming the bottom sheet with a series of transverse, parallel channels and then heating and lowering the top sheet over the bottom sheet to sandwich the product therebetween. The bottom sheet has a width less than the top sheet so that a communication means to the exterior is provided with the respective channels. With this arrangement, a vacuum can be drawn from the channels and thus evacuate the air between the plastic sheets to effect the desired vacuum sealing.

REFERENCES:
patent: 3216832 (1965-11-01), King
patent: 3830365 (1974-08-01), Krueger et al.

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