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US 2021/0228759 A1Published application
Cartridge with vapour permeable membrane, in particular for volatile substances such as insecticides and fragrances
AssigneeZobele Holding SPA
InventorsFranco ZOBELE, Walter SORDO
Life of this patent
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Abstract
Cartridge for volatile substances in the liquid state, such as insecticides or fragrances, of the type including a tray-shaped container closed on one side with a multilayer film, said multilayer film consisting of at least one internal vapour permeable membrane and one external vapour barrier layer. Directing/assisting means are provided, adapted to direct/assist the removal of just a first portion of the external vapour barrier layer—in the form of notches, weakening lines or strengthening lines—along a desired partition line, for cartridge activation.
Claims18
A cartridge for liquid volatile substances, comprising:
- a tray-shaped container closed by a multilayer film consisting of at least one internal vapor permeable membrane and an external vapor barrier layer;
- and
- a directing system and an assisting system configured to respectively direct and assist removal of only a first portion of the external vapor barrier layer, according to a desired partition line, for cartridge activation, said directing system comprising an opening starter of said desired partition line, said assisting system comprising weakening lines positioned at two sides of the desired partition line to assist a tearing action triggered by said opening starter.
Dependencies are inferred from the claim text.