Package making – Closing packages and filled receptacles – Including provision for pleat of cover overhang
Patent
1982-09-27
1985-04-02
Spruill, Robert L.
Package making
Closing packages and filled receptacles
Including provision for pleat of cover overhang
B65B 716
Patent
active
045079064
ABSTRACT:
In a packaging machine, a folder assembly for folding the tops of bags as part of a ceiling operation wherein the folder assembly can accommodate irregularities in the bags without jamming. A first folding station includes a stationary support member to which is hingedly affixed a first and a second folder plate, each having predetermined profiles formed along a working edge thereof. These folder plates are resiliently biased by springs toward their associated support member such that limited freedom to yield in a vertical plane is achieved. Associated with the working edge and spaced slightly therefrom is a front fold blade which, too, is spring mounted to allow a limited yield in a horizontal plane. In the event a jam should occur, the assembly may be readily opened to facilitate the clearing of that jam.
REFERENCES:
patent: 2576472 (1951-11-01), Messmer et al.
patent: 3200558 (1965-08-01), Adams et al.
patent: 3720559 (1973-03-01), Odom et al.
Doboy Packaging Machinery Inc.
Haugen Orrin M.
Mudd Richard M.
Nikolai Thomas J.
Spruill Robert L.
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