Package making – Progressively seamed cover web or web folds – With closing of web between package units
Patent
1994-07-06
1996-08-27
Culver, Horace M.
Package making
Progressively seamed cover web or web folds
With closing of web between package units
533744, B65B 912, B65B 106
Patent
active
055489478
ABSTRACT:
Packets are produced by forming a continuous web (W) of packaging material into a tubular form around a tube (4) through which the packet filling material is delivered, the individual packets being sealed and severed from the web as each dose of filling material is delivered. A valve (24) to control the dosing is provided at the exit end of the delivery tube. The sealing and severing of the packets is performed by mutually transverse pairs of rotors (36, 38) the arms (92) of which interdigitate to make successive seals in mutually transverse directions, so forming tetrahedral packets.
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Fincham Kevin R.
Seaward David R.
Shirley Graham L.
Vernon Geoffrey W.
Culver Horace M.
Farrell James J.
Thomas J. Lipton Co.
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