Improved fluid dispenser

A - Human Necessities – 47 – K

Patent

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Details

A47K 5/12 (2006.01) G01F 11/08 (2006.01)

Patent

CA 2153233

A fluid dispenser (20) is disclosed for dispensing a fluid from a pouch (200) having a discharge passage that extends along a tortuous path. The dispenser (20) has a dispenser station and dispenser mechanism in the dispenser station. In one aspect the dispenser mechanism comprises a backstop (80) on one side of the dispenser path and a cam (60) operated cylindrical roller (62) confronting the backstop (80), located on the other side of the dispenser path. The roller (62), is attached to a roller bracket (68), which is pivotally attached to the interior of a hollow pushbutton (44). The pushbutton (44) is mounted in an opening in the dispenser front cover (14). Springs (78) an attached to the bracket (68) and the front cover (14) which maintain the roller (62) against the flexible dispenser compartment (132) of the pouch (200). Depressing the pushbutton (44) forces the roller (62) to trap the upper portion of the pouch flexible dispenser compartment (132) between the roller (62) and backstop (80) to initially seal the dispenser compartment (130) at its upper end and further pushbutton (44) action forces the roller (62) down the dispenser compartment (132) thereby causing expulsion of the fluid trapped in the dispenser compartment (132).

L'invention concerne un distributeur de fluide (20) conçu pour distribuer du fluide en provenance d'une poche (200) présentant un passage de décharge s'étendant le long d'une voie tortueuse. Le distributeur (20) est constitué d'une station de distribution dans laquelle est prévu un mécanisme de distribution qui, dans un mode de réalisation, comprend un plot de repos (80) d'un côté de la voie d'écoulement du distributeur et un galet (62) cylindrique à cames (60) en face dudit plot de repos (80), de l'autre côté de la voie d'écoulement du distributeur. Le galet (62) est fixé à un support à galet (68) fixé pivotant à l'intérieur d'un bouton-poussoir creux (44). Ledit bouton-poussoir (44) est monté dans une ouverture située dans le couvercle frontal (14) du distributeur. Des ressorts (78) sont fixés audit support (68) et au couvercle frontal (14) qui maintiennent le galet (62) contre le compartiment flexible (132) de distribution de la poche (200). Lorsque le bouton-poussoir (44) est enfoncé, le galet (62) recouvre la partie supérieure du compartiment de distribution (132) flexible de la poche entre le galet (62) et le plot de repos (80) de manière à fermer hermétiquement le compartiment (130) en son extrémité supérieure. De plus, une pression supplémentaire sur le bouton-poussoir (44) fait descendre le galet (62) dans le compartiment de distribution (132) et provoque l'expulsion du fluide emprisonné dans ce dernier.

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