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1. (WO1993018981) GARDE-PLI DESTINE AUX DISTRIBUTEURS EN FORME DE TUBES
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

1. A fold retainer for a memoryless flexible tube having an opening at one end and a seam at another end, which enables its contents to be discharged by folding the tube and squeezing, comprising:
a retaining ring for holding the tube in a folded condition; and
means for securing said retaining ring to said tube, said securing means being permanently attached with and extending from said tube so that said retaining ring may be moved away from a folding path along said tube, and thereafter moved adjacent said tube to encircle and hold said tube in a folded condition.

2. The fold-retainer of claim 1, said securing means being a securing ring integrally formed with said, seam, said securing ring being attached to said retaining ring.

3. The fold retainer of claim 2 wherein said retaining ring is arcuate.

4. A method of making a fold retainer for a memoryless flexible tube which permits discharging its contents by folding and squeezing, comprising:
forming a tube having a selectively closable opening at one end and being open at another end;
sealing the tube along a transverse line located inboard of the open end thereof so that a portion of the open end extends beyond the transverse line and remains open; and
transversely cutting the open end along the transverse line to form a retaining ring integral with the tube so that the retaining ring may be moved with respect to the tube and opened to encircle and hold a folded portion of the flexible tube.

5. The method of claim 4, said transversely cutting step including:
arcuately cutting the open end outboard of the transverse line to form a curved retaining ring.

6. A method of making a fold retainer for a memoryless flexible tube which permits discharging its contents by squeezing, comprising:
forming a tube having a selectively closable opening at one end and an open end at another end;
sealing the tube at the open end to form a transverse seam; and
attaching a fold-retainer to the seam with a securing ring so that a retaining ring remains free form said tube to encircle and hold a folded portion of said tube.