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US 2004/0000306 A1Published application
Single-dose or double-dose device for dispensing a fluid product
AssigneeValois S. A. S
InventorGuiseppe Stradella
Life of this patent
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AssigneeValois S. A. S
InventorGuiseppe Stradella
Estimating the term…
A fluid dispenser device comprising a body (1), a reservoir unit (3) comprising a reservoir containing one dose or two half-doses of fluid, a dispensing member such as a piston (8) mounted to move axially inside the reservoir (3) between a rest position and a dispensing position, and an actuating element (5) that is mounted to move between a rest position and an actuating position, said fluid dispenser device being characterized in that said actuating element (5) is disposed laterally, and has an end portion provided with a cam surface (6) which cooperates with said dispensing member (8) or said reservoir unit (3), said actuating element (5) being moved in a direction that is different from, and in particular substantially perpendicular to, the axial direction in which the dispensing member (8) moves relative to the reservoir.
1/ A fluid dispenser device comprising a body (1), a reservoir unit (3) comprising a reservoir containing one dose or two half-doses of fluid, a dispensing member such as a piston (8) mounted to move axially inside the reservoir (3) between a rest position and a dispensing position, and an actuating element (5) that is mounted to move between a rest position and an actuating position, said fluid dispenser device being characterized in that said actuating element (5) is disposed laterally, and has an end portion provided with a cam surface (6) which cooperates with said dispensing member (8) or said reservoir unit (3), said actuating element (5) being moved in a direction that is different from, and in particular substantially perpendicular to, the axial direction in which the dispensing member (8) moves relative to the reservoir.
2/ A device according to claim 1, in which the lateral actuating element (5) is mounted to slide in said body (1) and moves in translation.
3/ A device according to claim 1, in which said lateral actuating element (5) is mounted to pivot on said body (1), and moves in rotation about a pivot pin (20).
4/ A device according to any preceding claim, in which the reservoir contains a single dose of fluid, the dispensing member (8) or the reservoir unit (3) being provided with at least one projection (7) co-operating with said cam surface (6) of said actuating element (5).
5/ A device according to any one of claims 1 to 3, in which the reservoir (3) contains two half-doses of fluid, the device being provided with dose-splitting means.
6/ A device according to claim 5, in which the actuating element (5) is provided with resilient return means which return it to its rest position after the first half-dose has been delivered, and the dose-splitting means are implemented such that the second half-dose is delivered when the actuating element (5) is moved into its actuating position again.
7/ A device according to claim 5 or claim 6, in which the dispensing member (8) or the reservoir unit (3) is provided with at least two projections (7, 12) that are offset axially, at least a first projection (7) cooperating with the cam surface (6) to deliver the first half-dose, and at least a second projection (12) cooperating with the cam surface (6) for delivering the second half-dose.
8/ A device according to claim 7, in which said at least one second projection (12) is provided on a resilient arm (13) secured to or integral with the dispensing member (8) or the reservoir unit (3), said arm (13) moving out of the way when the actuating element (5) co-operates with said at least one projection (7) for delivering the first half-dose, and returning resiliently to its initial position when the actuating element (5) is returned to its rest position by the resilient return means, after the first half-dose has been delivered, so that said at least one second projection (12) co-operates with the cam surface (6) of said actuating element (5) when said actuating element is moved again into its actuating position for delivering the second half-dose.
9/ A device according to any preceding claim, in which said cam surface (6) of the actuating element (5) is a sloping surface transforming the substantially radial movement of the actuating element (5) into an axial movement of the dispensing member (8) or of the reservoir unit (3).
10/ A device according to claim 3, in which said actuating element (5) is made integrally with said body (1), a bridge of flexible material (20) forming the pivot pin.
11/ A device according to any preceding claim, in which the reservoir unit (3) is fixed relative to said body (1), said actuating element (5) co-operating with said dispensing member (8).
12/ A device according to any one of claims 1 to 10, in which the dispensing member (8) is fixed relative to said body (1), said actuating element (5) co-operating with said reservoir unit (3).