Package making – Methods – With contents treating
Patent
1979-09-28
1981-10-06
Bray, W. D.
Package making
Methods
With contents treating
53373, 53436, 53512, 53526, 53527, B65B 124, B65B 3100
Patent
active
042927862
ABSTRACT:
A machine for packaging chopped leafy vegetables in a flexible bag with the chopped leafy vegetables being reduced in volume by compressing the bag and the chopped leafy vegetables therein in a vertical direction and closing the open end of the bag thereby packaging leafy chopped vegetables in a manner that the package will occupy less volume than when the chopped leafy vegetables were in bulk form. In one embodiment of the invention, the bags with a predetermined quantity of chopped leafy vegetables therein are placed on a platform with the open upper end of the bag being received through a slot in a top plate structure after which the supporting platform is moved upwardly toward the top plate a predetermined distance to compress the bag and contents therein in a vertical direction with the upper end of the bag then being closed by a heat sealing assembly when the bag is constructed of plastic. In another embodiment, bags are placed on a lower belt conveyor with the top of the bag being engaged by a pair of side-by-side, laterally spaced top belt conveyors with the space therebetween receiving the open upper end of the bag. The lower and top conveyors move in the same direction and speed and converge in a manner to compress the bag and its contents in a vertical direction while the open end of the bag is sealed with a heat sealing arrangement when the bag is constructed of plastic.
REFERENCES:
patent: 2481611 (1949-09-01), Moore
patent: 2669065 (1954-02-01), Clegg
patent: 2698500 (1955-01-01), Clegg
patent: 2925719 (1960-02-01), Robbins et al.
Flowers Robert L.
Long Howard W.
Bray W. D.
Coronet Foods, Inc.
Jacobson Harvey B.
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