Dispensing apparatus with improved dose counting mechanism

A - Human Necessities – 61 – M

Patent

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Details

A61M 15/00 (2006.01)

Patent

CA 2663682

Dispensing apparatus for delivering metered doses of product from a pressurized dispensing container has a housing for receiving the container, and a dose counting mechanism that displays an indication of doses dispensed from or remaining in the container. The dose counting mechanism has an indexing mechanism for advancing the indication on actuation of the container, and the dispensing apparatus has an indexing member that moves within the housing in sync with the container. With this arrangement the indexing member interfaces with the indexing mechanism to apply force to the indexing mechanism and incrementally advance the indication. In the invention, the indexing member has a degree of inherent flexibility so that if the dispensing apparatus suffers a sudden impact, the indexing member is able to flex under impack loading, to lessen risk of damaging the indexing mechanism.

Un distributeur de doses de produit à partir d'un récipient de distribution sous pression est muni d'un bâti pour recevoir le récipient et d'un mécanisme de comptage des doses qui affiche une indication des doses distribuées par le récipient ou qui y restent. Le mécanisme de comptage des doses comprend un mécanisme d'indexage pour faire progresser l'indication, à l'actionnement du récipient. Le distributeur comprend un élément d'indexage qui se déplace à l'intérieur du bâti en synchronisme avec le récipient. Grâce à ce montage, l'élément d'indexage est relié avec le mécanisme d'indexage pour appliquer une force au mécanisme d'indexage et faire progresser l'indication par incréments. Dans cette invention, l'élément d'indexage présente un degré de souplesse inhérente, de sorte que si le distributeur subit un choc soudain, l'élément d'indexage peut fléchir sous la charge du choc, pour moins risquer d'endommager le mécanisme d'indexage.

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