Package making – Methods – Plural covers
Patent
1979-11-21
1981-09-08
Coan, James F.
Package making
Methods
Plural covers
53175, 53284, 493100, 493907, B65B 302, B31B 774
Patent
active
042877032
ABSTRACT:
Boxes which are open at the top and partly open at the bottom are transported by a chain conveyor past assembling, filling and sealing stations. At the assembling station, each box receives a bag which is open at the top and closed at the bottom, and each box further receives a platform which is inserted through its partially open bottom and extends to such a level as to maintain the open top of the respective bag above the open top of the box. Successive containers consisting of boxes and empty bags are then advanced to the filling station where the bags receive metered quantities of pulverulent, granular or other material, and the thus filled containers are advanced to the sealing station where the tops of the filled bags are readily sealable because they project upwardly beyond the open tops of the corresponding boxes. The boxes are then raised relative to the filled and sealed bags so that the bags are fully received therein before the top and bottom ends of the boxes are closed and the finished containers are removed from the chain conveyor. The platforms are retracted immediately downstream of the sealing station.
REFERENCES:
patent: 2514867 (1950-07-01), Howard et al.
patent: 3306001 (1967-02-01), Peppler
patent: 3774509 (1973-11-01), Heinzer
patent: 3983682 (1976-10-01), Scully
Henle Karl
von Wichert Nils
Coan James F.
Hauni-Werke Korber & Co. KG
Kontler Peter K.
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