A fluid dispenser for dispensing a fluid contained in a container, comprising: a cap rotatably securable to a neck of the container and provided with an aperture for allowing the fluid to exit the container, the neck extending along a longitudinal axis and the cap being rotatable about the longitudinal axis of the neck; an obturator insertable into the neck of the container; and a motion conversion device operatively connected to the cap and at least partially insertable into the neck of the container, the motion conversion device comprising a movable body, the motion conversion being adapted to convert a rotation of the cap into a translation of the movable body along the longitudinal axis, the translation of the movable body varying a maximal distance between the obturator and the aperture of the cap to adjust a volume of fluid to be dispensed.
G01F 11/00 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
G01F 11/28 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
G01F 11/04 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the free-piston type
B65D 47/00 - Closures with filling and discharging, or with discharging, devices
A metering end cap provided to the neck of a flexible container containing a fluid and intended to transfer, at will, an amount of fluid from an upstream space towards a downstream space, this end cap including a chamber in which is disposed a movable valve normally biased towards a rest position and operationally moved towards an end position. The valve isolates the upstream space and the downstream space from each other in its end position and only in this position, and the outlet of the chamber communicates with the upstream space for any position of the valve other that its end position.
F16K 15/14 - Check valves with flexible valve members
B65D 47/04 - Closures with discharging devices other than pumps
G01F 11/04 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the free-piston type
G01F 11/28 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
B05B 11/02 - Membranes or pistons acting on the contents inside the container, e.g. follower pistons
B05B 11/04 - Deformable containers producing the flow, e.g. squeeze bottles
F16K 24/04 - Devices, e.g. valves, for venting or aerating enclosures for venting only
The present invention particularly relates to a metering end-piece fitted on the neck (80) of a flexible container (8) containing a fluid, and intended for transferring at will a dose of the fluid from an upstream space (E1) towards a downstream space (E2), said end-piece including a chamber (100) in which is provided a mobile stopper (2) that is urged into a rest position by default and is actuated upon operation towards an end position. According to the invention, the stopper (2) separates the upstream space (E1) and the downstream space (E2) from each other in the end position and only in this position, and the outlet (6) of the chamber (100) communicates with the upstream space (E1) for any position of the stopper (2) different from the end position.
G01F 11/08 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type
G01F 11/28 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
A metering device attachable to a recipient suitable for receiving a fluid to deliver a predetermined volume of fluid in response to an increase in pressure of the fluid contained in the recipient, the metering device including: at least one hollow body, which can be at least partly inserted in a neck of the recipient and including an input and an output, the hollow body defining a chamber communicating with the input and the output; and a stopper mobile between a resting position and an extreme position, the buoyant stopper being butted up against the input when in the resting position, and substantially preventing the fluid from escaping the metering device through the output when in the extreme position, the buoyant stopper moveable from the resting position toward the extreme position following the increase in pressure of the fluid contained in the recipient while a part of the fluid is delivered through the output.
G01F 11/28 - Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
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