B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 5/54 (2006.01) B65D 5/72 (2006.01) B65D 81/32 (2006.01)
Patent
CA 2003033
An opening arrangement for a cardboard package of the type which has a package wall comprising a base layer of paper or cardboard having coatings of thermoplastic material on both sides and a tearing indication provided in the package wall enclosing at least parts of the desired opening area c h a r a c t e r i z e d b y, on the one hand,a duct or pouring channel fixed to the said package wall, this pouring channel surrounding the said opening area so as to cover it, on the other hand a pull-out opening means arranged in the said pouring channel partially projecting from it and comprising parts which are inclinable in relation to the principal direction of the means and which are adapted so that with their one boundary edge they rest against, and are fixed to, the said opening area adjoining the tearing indication which delimits the opening area, and that the said opening means is adapted so that when a tensile force is exerted on the opening means substantially parallel with the longitudinal direction of the pouring channel, the said inclinable parts will be pressed in inclined position against the inside of the pouring channel and exert a pressure directed substantially against the package wall within the parts of the opening area where the said inclinable parts of theopening means are fixed, with the object of breaking up the said tearing indication and, on continued pulling out of the opening means from the pouring channel, remove the wall part or parts of the package wall present within the opening area after tearing up of the said tearing indication.
Marks & Clerk
Rausing Hans
Tetra Laval Holdings & Finance Sa
LandOfFree
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