Transparent or translucent tubular structure

B - Operations – Transporting – 43 – K

Patent

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Details

B43K 5/12 (2006.01)

Patent

CA 2516784

The present invention relates generally to a writing medium reservoir that exhibits clear drain of a writing medium, and preferably in which the writing medium is readily visible to the user. The present invention also relates to a method of making a writing medium reservoir that exhibits clear drain of a writing medium, and preferably in which the writing medium is readily visible to the user. The method may include forming the writing medium reservoir by co- extruding an inner layer and an outer layer. In addition, the present invention relates to a multi-layer tubular structure that exhibits clear drain of a liquid, and preferably in which the relative presence or relative absence of liquid is readily visible to the user.

Cette invention concerne d'une manière générale un réservoir d'agent d'écriture présentant un écoulement clair d'un agent d'écriture et permettant de préférence à l'utilisateur d'observer directement l'agent d'écriture. Cette invention concerne également un procédé de fabrication d'un réservoir d'agent d'écriture présentant un écoulement clair d'un agent d'écriture et permettant de préférence à l'utilisateur d'observer directement l'agent d'écriture. Ce procédé peut consister à former le réservoir d'agent d'écriture par co-extrusion d'une couche interne et d'une couche externe. Cette invention concerne en outre une structure tubulaire multicouche présentant un écoulement clair d'un liquide et permettant de préférence à l'utilisateur d'observer directement la présence relative ou l'absence relative de liquide.

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