Fluid dispenser
AssigneeValois SAS
InventorsFirmin Garcia, Alex Millian, Fabienne Uguen
Life of this patent
Estimating the term…
Abstract
A fluid dispenser including: an entraining gas reservoir (10) provided with an actuator (12′) suitable for pressurizing the gas contained in the reservoir; a fluid reservoir (3); and a dispensing orifice (21) serving to pass a mixture made up of entraining gas and of fluid; the fluid reservoir (3) being separated from the gas reservoir (10) by a partition (31″; 31″′). The partition is permeable to the gas and impermeable to the fluid, so that the pressurized gas penetrates into the fluid reservoir (3) through the partition, and entrains the fluid with it towards the dispensing orifice. The fluid is urged towards the dispensing orifice by thrust mechanism (32″, 32″′) so that fluid is always present at the dispensing orifice.
Claims9
A fluid dispenser comprising:
- an entraining gas reservoir (10) provided with actuating means (12′) suitable for pressurizing the gas contained in the reservoir;
- a fluid reservoir (3);
- and
- a dispensing orifice (21) serving to pass a mixture made up of entraining gas and of fluid;
- the fluid reservoir (3) being separated from the gas reservoir (10) by a partition (31″;
- 31″′), said partition being permeable to the gas and impermeable to the fluid, so that the pressurized gas penetrates into the fluid reservoir (3) through the partition, and entrains the fluid with it towards the dispensing orifice;
- wherein the fluid is urged towards the dispensing orifice by thrust means (32″;
- 32″′) so that fluid is always present at the dispensing orifice;
- and
- wherein the partition (31″;
- 31″′) is mounted to move relative to and advantageously towards the dispensing orifice.
A fluid dispenser comprising:
- an entraining gas reservoir (10) provided with actuating means (12′) suitable for pressurizing the gas contained in the reservoir;
- a fluid reservoir (3′);
- and
- a dispensing orifice (21) serving to pass a mixture made up of entraining gas and of fluid;
- the fluid reservoir (3) being separated from the gas reservoir (10) by a partition (31″;
- 31″′), said partition being permeable to the gas and impermeable to the fluid, so that the pressurized gas penetrates into the fluid reservoir (3) through the partition, and entrains the fluid with it towards the dispensing orifice;
- wherein the fluid is urged towards the dispensing orifice by thrust mean (32″;
- 32″′) so that fluid is always present at the dispensing orifice;
- wherein the fluid reservoir comprises a movable wall (31″;
- 31″′) in a direction corresponding to a decreasing of the reservoir volume;
- and wherein the partition (31″;
- 31″′) forms a part of the movable wall.
A fluid dispenser comprising:
- an entraining gas reservoir (10) provided with actuating means (12′) suitable for pressurizing the gas contained in the reservoir;
- a fluid reservoir (3);
- and
- a dispensing orifice (21) serving to pass a mixture made up of entraining gas and of fluid;
- the fluid reservoir (3) being separated from the as reservoir (10) by a partition (31″;
- 31″′), said partition being permeable to the gas and impermeable to the fluid, so that the pressurized gas penetrates into the fluid reservoir (3) through the partition, and entrains the fluid with it towards the dispensing orifice;
- wherein the fluid is urged towards the dispensing orifice by thrust means (32″;
- 32″′) so that fluid is always present at the dispensing orifice;
- and
- wherein the partition (31″) is mounted on a scraper piston (32″) which is slidably engaged in a cylinder (22″).
A fluid dispenser comprising:
- an entraining gas reservoir (10) provided with actuating means (12′) suitable for pressurizing the gas contained in the reservoir;
- a fluid reservoir (3);
- and
- a dispensing orifice (21) serving to pass a mixture made up of entraining gas and of fluid;
- the fluid reservoir (3) being separated from the gas reservoir (10) by a partition (31″;
- 31″′), said partition being permeable to the gas and impermeable to the fluid, so that the pressurized gas penetrates into the fluid reservoir (3) through the partition, and entrains the fluid with it towards the dispensing orifice;
- wherein the fluid is urged towards the dispensing orifice by thrust mean (32″;
- 32″′) so that fluid is always present at the dispensing orifice;
- wherein the fluid reservoir comprises a movable wall (32″;
- 32″′) in a direction corresponding to a decreasing of the reservoir volume;
- and
- wherein the wall is movable by the pressurized gas flow.
Dependencies are inferred from the claim text.