Package making – Closing packages and filled receptacles – By means adapted to engage outturned seam of package cover
Patent
1995-07-25
1997-04-22
Culver, Horace M.
Package making
Closing packages and filled receptacles
By means adapted to engage outturned seam of package cover
533872, B65B 726, B65B 508
Patent
active
056220286
ABSTRACT:
A method and apparatus for cold sealing a pharmaceutical unit dose package of pills while the package is seated upon a resilient sealing tray. The unit dose package has a plurality of blisters for holding the pills. The sealing tray has a plurality of outwardly-opening compartments open to its upper side, and the compartments are spaced for receipt of the blisters of the unit dose package. The sealing apparatus comprises a base with a reduced-friction upper surface portion; a resilient roller for compressing the package against the sealing tray; first and second pillow block bearings rotatably mounting the roller to the base so that the roller may rotate about its longitudinal axis; a first and second pair of posts extending upwardly from the base and mounting the pillow block bearings for vertical movement respectively thereupon; a plurality of compression springs pressing the roller toward the base and against the package when the package is placed against the sealing tray and interposed between the roller and the base; and an electric motor for rotating the roller about its longitudinal axis.
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