Package making – Methods – Opening only
Patent
1980-02-19
1982-07-13
Coan, James F.
Package making
Methods
Opening only
53381A, 198484, 198689, 271 98, B65B 4340
Patent
active
043387675
ABSTRACT:
In a seal removal station positioned along a bottle conveyor line upstream of a filling operation, oversized adhesive seals covering the mouths of plastic bottles are lifted off each bottle and transferred to a collector bin. Vacuum pressure generated in a plenum chamber formed in a stator member is transmitted to the non-adhesive upper surface of each seal through a perforated rotor surface rotating beneath the stator. Air jet means directing fluid pressure upward against overlapping marginal portions of each seal and guide surfaces to flatten out curled portions of the seal are utilized to assure seal lift off by virtue of fluid pressure differentials. A removed seal is kept adhered to the moving rotor surface by the maintenance of vacuum pressure above the seal. Adjacent to the collector bin, a further plenum having pressure air therein communicates through the rotor perforations with the adhered seal to propel the seal into the bin.
REFERENCES:
patent: 2995883 (1961-08-01), Aubry et al.
patent: 3067552 (1962-12-01), Aubry
patent: 3294396 (1966-12-01), Staines
patent: 3845605 (1974-11-01), Hartness
patent: 3891205 (1975-06-01), Sunahara et al.
patent: 4187662 (1980-02-01), Cochran
Coan James F.
National Can Corporation
Stenzel Robert A.
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