Device and method for dispensing a fluid
OwnerDenis Marin, Serge Sonieinventors
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Abstract
The invention concerns an automatic fluid dispensing device comprising a container, a push-button, a plurality of springs, at least one cam, a plunger, and an aerosol containing the fluid to be dispensed. The invention is characterized in that it further comprises a sealed pressure chamber provided with at least one outlet for releasing the pressure from the pressure chamber when the latter is higher than atmospheric pressure, the compression of the push-button acting, via the cam of the plunger to increase the pressure in said chamber acting on the aerosol so that it delivers the fluid during a predetermined time. The invention also concerns a method using said device.
Claims23
A device for the automatic delivery of fluid, the device comprising a container provided with a fluid reserve in the form of an aerosol and a system for triggering the release of the fluid from the reserve, the system for triggering the release of the fluid providing the delivery of a previously determined quantity of the fluid, for a previously determined period, over an area whose extent is previously determined.
A method for the automatic delivery of a fluid for a predetermined period, comprising a step of triggering by a user including pressing on a push button, the method further comprising the following steps:
- sliding a piston over or in a pressure chamber so as to increase the pressure prevailing in the chamber;
- pressing at least one spring, present in the pressure chamber;
- pressing the pressure chamber on the aerosol;
- delivering fluid by the aerosol;
- leakage of gas contained in the pressure chamber through at least one orifice so as to re-establish a pressure close to atmospheric pressure in the chamber;
- sliding of the piston under the action of the actuator;
- and
- rotation of the actuator cancelling out the pressure on the aerosol so that the latter stops delivering fluid.
Dependencies are inferred from the claim text.