Apparatus and process for vacuum skin packaging

Details Apparatus and process for vacuum skin packaging Apparatus and process for vacuum skin packaging

1974-08-22

1976-04-20

McGehee, Travis S.

Package making

Interrelated or safety controls

53112A, B65B 3102

Patent

active

039509192

ABSTRACT:
The invention disclosed is directed to a new improved apparatus for vacuum skin packaging an article between two flexible web layers. The apparatus includes two molds, each having an inner wall defining a generally concave open cavity and terminating to a lip about the cavity opening, means for receiving and releasing web layers in wall-conforming shape, means for releasably receiving outer portions of the web layers adjacent the lips, means for registering the molds to provide a partially enclosed third cavity, and means for reducing pressure substantially throughout the third cavity by removing gaseous composition therefrom through a passageway means provided by portions of the lips which are spaced apart when the molds are in packaging register. Also disclosed is a process for vacuum skin packaging. If desired, the process may be performed using the apparatus.

REFERENCES:
patent: 2991600 (1961-07-01), Lancaster
patent: 3195288 (1965-07-01), Sloan et al.
patent: 3597899 (1971-08-01), Hanson
patent: 3694991 (1972-10-01), Perdue et al.

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