Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1987-03-20
1988-02-09
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
53485, 118 20, 118 25, 156294, 156305, 156381, 156578, 206530, 209543, 209906, 427 3, C09J 500
Patent
active
047240199
ABSTRACT:
Improved method and apparatus for use in sealing gelatin capsules filled with medicinal ingredients wherein each capsule has a generally cylindrical cap and body arranged with the side wall of the body telescopically within the side wall of the cap to contain the medicament therein comprising an economical and compact wetting device for automatically conveying filled capsules from a capsule-filling machine by pneumatic pressure conveyance through one or more passageways to a wetting location where each capsule is maintained in a generally cap-upright position and metered amounts of a wetting liquid are applied to side wall portions of the body of the capsule adjacent the seam of the cap and body to pass by capillary action into the space between the overlapping cap and body side walls, and the capsules are released from wetting positions in the passageways for further pneumatic conveyance to a point of heat treatment for final sealing of the body and cap portions of the capsule to prevent their separation and facilitate tamper-resistance of the capsules before use.
REFERENCES:
patent: 3911860 (1975-10-01), Nohynek
patent: 4532881 (1985-08-01), Sakashita et al.
patent: 4539060 (1985-09-01), Wittwer et al.
patent: 4543906 (1985-10-01), Glatt et al.
patent: 4548825 (1985-10-01), Voss et al.
patent: 4649855 (1987-03-01), Preis
patent: 4656056 (1987-04-01), Levenberger
patent: 4656066 (1987-04-01), Wittwer
Brown Charles F.
Lebrun Jean C.
Dawson Robert A.
Olevsky Howard
Raines Stephen
Warner-Lambert & Company
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