Package making – Methods – With contents treating
Patent
1983-10-06
1986-02-04
Sipos, John
Package making
Methods
With contents treating
53454, 53529, 53560, B65B 124, B65B 4710
Patent
active
045677140
ABSTRACT:
Apparatus and method for forming sealed pharmaceutical capsules containing precisely compacted charges of a powdered material. A pair of substantially cylindrical sealing rolls are arranged in nipping relationship for directing a pair of webs of gelatin material along predetermined paths between the nip of the sealing rolls. For each sealing roll there is provided a powder supply hopper which contains a supply of powdered material and a cylindrical roll rotatably mounted adjacent the supply hopper. The cylindrical roll has chambers extending radially inwardly from the surface thereof for receiving therewith powdered material as the cylindrical roll rotates past the supply hopper. A compaction mechanism is associated with each cylindrical roll for compacting the predetermined charge of powdered material in the chambers so as to form a compacted slug. A transfer roll associated with each cylindrical roll is provided intermediate the cylindrical roll and its respective sealing roll for transferring the compacted slugs of material to cavities formed in the web as the sealing roll feeds the web along its predetermined path toward the nip between the pair of sealing rolls, the transfer rolls being provided with means for collecting free and uncompacted powdered material and dust to minimize the depositing of dust and free powdered material onto the web.
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