Device for dispensing fluid product
US-2020254465-A1 · Aug 13, 2020 · US
US11478809B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11478809-B2 |
| Application number | US-201917257093-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 11, 2019 |
| Priority date | Jul 12, 2018 |
| Publication date | Oct 25, 2022 |
| Grant date | Oct 25, 2022 |
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Official abstract text for this publication.
A fluid dispenser device including a body; a reservoir containing one or two doses of a fluid, the reservoir including a stopper that closes the reservoir in leaktight manner before actuation; a dispenser head that is provided with a dispenser orifice; and dispenser mechanism for dispensing at least a portion of the fluid through the dispenser orifice during actuation. The device further includes a needle having a tip that is adapted to pierce the stopper during actuation, the reservoir being filled with the fluid and being closed with the stopper under a vacuum, so that the residual volume of air present in the reservoir between the fluid and the stopper is substantially zero.
Opening claim text (preview).
The invention claimed is: 1. A fluid dispenser device comprising: a body; a reservoir containing one or two doses of a fluid, said reservoir including a stopper that closes said reservoir in leaktight manner before actuation; a dispenser head that is provided with a dispenser orifice; and dispenser means for dispensing at least a portion of said fluid through said dispenser orifice during actuation; said device includes a needle having a tip that is adapted to pierce said stopper during actuation, said reservoir being filled with said fluid and being closed with said stopper under a vacuum, so that a residual volume of air present in said reservoir between said fluid and said stopper is zero. 2. A device according to claim 1 , wherein said stopper is in contact with said fluid in the reservoir. 3. A device according to claim 1 , wherein said needle is stationary relative to said dispenser orifice. 4. A method of filling and closing a fluid dispenser device comprising: a body; a reservoir containing one or two doses of a fluid, said reservoir including a stopper that closes said reservoir in leaktight manner before actuation; a dispenser head that is provided with a dispenser orifice; and dispenser means for dispensing at least a portion of said fluid through said dispenser orifice during actuation; said device including a needle having a tip that is adapted to pierce said stopper during actuation, said method comprises the following steps: filling an empty reservoir in a filler unit; arranging said filled reservoir in a closure unit that is provided with a vacuum chamber; creating a vacuum in said vacuum chamber; and closing said reservoir under said vacuum with said stopper. 5. A method according to claim 4 , wherein said closure unit comprises: a support device; said vacuum chamber; a funnel; and a closure tool. 6. A method according to claim 4 , wherein said step of filling said empty reservoir in said filler unit is also performed under vacuum.
Nose · CPC title
hollow piercing means · CPC title
Mouthpieces therefor · CPC title
Syringe-type or piston-type sprayers or atomisers · CPC title
Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container · CPC title
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