Method of opening for bags of supple polymeric material...

B - Operations – Transporting – 65 – D

Patent

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B65D 33/00 (2006.01)

Patent

CA 2470341

A collapsed bag (40) of unitary construction is made of supple polymeric material, having first and second opposed contiguous flat sidewalk (46, 47) joined at edges and at the bottom but free or with user-releasable weakening at upper edges. The upper edges define a bag mouth. Appropriately situated graspable points (42, 44) at or near bag edges allow the sidewalk to be tensioned or snapped in opposing directions (43, 45) thereby causing the interlayer cling, to which supple polymeric bags are renownedly susceptible, to be readily disrupted for the full distance of contact between the tensioning points and thus for virtually the entirety of the bag mouth to be opened.

L'invention concerne un sac unitaire pliable fait d'un matériau polymérique souple, comprenant une première et une seconde paroi latérale plates contigües opposées et reliées par leurs bords et leurs parties inférieures mais sans attache ou avec un affaiblissement pouvant être défait par l'utilisateur au niveau de leurs bords supérieurs. Les bords supérieurs définissent une embouchure du sac. Des points de prise situés de manière appropriée sur ou près des bords du sac permettent aux parois latérales d'être tendues ou encliquetées dans des directions opposées, permettant ainsi de rompre facilement l'adhérence intercouche que présentent généralement les sacs polymériques souples sur toute la distance de contact entre les points de tension, permettant ainsi d'ouvrir pratiquement toute l'embouchure du sac.

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