Pump device including multiple function collapsible pump...

B - Operations – Transporting – 05 – B

Patent

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B05B 11/00 (2006.01) B05B 1/34 (2006.01)

Patent

CA 2165295

A collapsible pump chamber (60) is provided which includes several functional elements of a pump device. For example, the collapsible pump chamber may be a bellows which includes a functional element (91) of an outlet valve, a functional element (82) of a biasing feature, and a functional element of a spin chamber (91). Consequently. a functional element of all of the downstream functions are incorporated into the bellows (60). This can significantly reduce costs; due to reduced tooling, and assembly, for example. In contrast, there are no upstream components incorporated into the bellows which enables the upstream or inlet end of the bellows to be wide open. This wide open upstream end of the bellows makes molding easier.

L'invention concerne une chambre de pompe pouvant s'aplatir (60) qui comprend plusieurs éléments opérationnels d'un dispositif de pompe. Par exemple, la chambre de pompe peut être un accordéon comportant un élément opérationnel de valve de sortie (91), un élément opérationnel exerçant une poussée (82) et un élément opérationnel de chambre rotative (91). Par conséquent, un élément opérationnel remplissant toutes les fonctions aval est incorporé dans l'accordéon (60). Ceci peut réduire d'une manière significative les coûts, par exemple grâce à l'outillage et à l'assemblage simplifiés. Par contre, il n'y a aucun composant amont incorporé à l'accordéon ce qui permet à l'extrémité d'entrée en amont de l'accordéon de rester complètement ouverte. Cette extrémité amont complètement ouverte de l'accordéon facilite le moulage.

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