Patent ID: 9579672
Date: 2017-02-28
CPC Classifications: A61M,B05B

Claim:
1. A dispenser device for dispensing a fluid or powder composition, the dispenser device including a dispenser outlet, an air expeller for generating a flow of air while the device is being actuated, and at least one reservoir that contains a single dose of a composition, said reservoir including an air inlet that is connected to said air expeller , and a composition outlet that is connected to said dispenser outlet, said air inlet including a composition retainer member for retaining the composition in the reservoir until the composition is dispensed, and said composition outlet being closed by a closure element that is force fitted in the composition outlet of the reservoir, said device including a mechanical opening system that includes a set of rods that, at the end of an actuation stroke, co-operate with said closure element so as to expel it mechanically from a closed position while the device is being actuated, said set of rods comprises a first rod portion that is secured to said air expeller, and a second rod portion that is secured to said composition retainer member, the closure element includes a hollow cylindrical axial sleeve that co-operates with said composition outlet to define a peripheral sealing surface, said hollow cylindrical axial sleeve being open at one axial end, and closed at the other axial end by a rounded portion, being a hemi-spherical portion, said rounded portion facing towards an inside of the reservoir in the closed position.