Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Patent
1981-02-05
1983-08-16
Coan, James F.
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
83428, 493226, 493227, 493369, 493926, B31B 118, B31B 186
Patent
active
043989039
ABSTRACT:
A handle bag of a predetermined width is made from a synthetic-resin tube. This tube is fed at a predetermined feed speed through a cutting station where it is spanned over a cutting drum formed with an endless circumferentially extending and undulating cutting groove. A blade engages radially inwardly through this groove so that as the tube passes over the drum it is subdivided transversely into a pair of tube halves. The blade reciprocates back and forth transversely of the tube in the cutter groove by rotation of the drum at such a rate as to form on the confronting cut edges of the tube halves interfitting and staggered handle flaps. One of these tube halves is then detoured through a distance equal to an odd whole-number multiple of half of the bag width and then is realigned with the other tube half with the flaps in transverse alignment. The two tube halves are then seamed together simultaneously.
REFERENCES:
patent: 449057 (1891-03-01), Perkins
patent: 1127448 (1915-02-01), Jullien
patent: 2214593 (1940-09-01), Mustin et al.
patent: 4164170 (1979-08-01), Nordin
patent: 4174657 (1979-11-01), Suominen
patent: 4273014 (1981-06-01), Edling
Coan James F.
Dubno Herbert
Ross Karl F.
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