Film tube for flowable substances

Details Film tube for flowable substances Film tube for flowable substances

1997-02-05

2000-07-11

Robinson, Ellis

Dispensing

Collapsible wall-type container

206277, 222103, 2225416, 383 71, 383104, 383222, 383906, 428 352, 428 43, B65D 4722, B67D 506

Patent

active

060859415

ABSTRACT:
In a film tube containing a flowable substance, a fold 11 is formed in the film, which fold is so shaped that it abruptly decreases the cross-section at this location of the tube. The fold 11 may be fixed by a V-shaped weld 12. When the film tube is compressed, maximum stress is exerted on the area of the film close to the apex 13 of the V-shaped weld 12, so that the tube starts to rupture and form a dispensing opening at this location.

REFERENCES:
patent: 3141221 (1964-07-01), Faulls, Jr.
patent: 3516537 (1970-06-01), Dreyfus et al.
patent: 5035348 (1991-07-01), Seifert
patent: 5286105 (1994-02-01), Herold et al.
patent: 5480067 (1996-01-01), Sedlmeier
patent: 5547284 (1996-08-01), Imer

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