Metering valve and device for dispensing a fluid product comprising such a valve

Patent metadata

Field	Value
Publication number	US-10364898-B2
Application number	US-201414890974-A
Country	US
Kind code	B2
Filing date	Jun 2, 2014
Priority date	Jun 4, 2013
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

A fluid dispenser valve including a valve body extending along a longitudinal axis between a first axial end and a second axial end, the valve body containing a metering chamber; and a valve member that slides axially in the valve body between a rest position and a dispensing position, for selectively dispensing the contents of the metering chamber. The metering chamber is connected, in the valve member rest position, to a fluid reservoir, to fill the metering chamber by gravity when the valve is upsidedown with the metering chamber below the reservoir while the valve member is in the rest position, and to empty the metering chamber by gravity when the valve is upright. The valve body includes a first hole and a second hole, to fill and to empty the metering chamber, the first hole being axially offset along the longitudinal axis relative to the at second hole.

First claim

The invention claimed is:

1. A metering valve for dispensing fluid, the valve comprising: a valve body that extends along a longitudinal axis between a first axial end and a second axial end, said valve body containing a metering chamber; and a valve member that slides axially in said valve body between a rest position and a dispensing position, for selectively dispensing the contents of said metering chamber, said metering chamber configured to have a fluid connection, in the rest position of the valve member, to a fluid reservoir containing the fluid to be dispensed and structured so that when the valve is in an upside-down position with the metering chamber arranged below the reservoir while the valve member is in the rest position, the metering chamber is filled by gravity from the reservoir, and so that when the valve is in an upright position with the metering chamber arranged above the reservoir while the valve member is in the rest position, the metering chamber is emptied by gravity into the reservoir; wherein said valve body includes at least one first hole and at least one second hole configured to fill and to empty said metering chamber by gravity, said at least one first hole being axially offset along said longitudinal axis relative to said at least one second hole.

2. The valve according to claim 1 , wherein said at least one first hole is a side hole that is arranged in a cylindrical portion of the valve body.

3. The valve according to claim 2 , wherein said at least one first hole comprises a plurality of holes that are arranged at a same axial level of said valve body.

4. The valve according to claim 1 , wherein said at least one second hole is an axial hole that is arranged in said second axial end of said valve body, on said longitudinal axis.

5. The valve according to claim 1 , wherein said at least one second hole is a side hole that is arranged in a cylindrical portion of the valve body, said at least one second hole being axially offset relative to said at least one first hole.

6. The valve according to claim 5 , wherein said at least one second hole comprises a plurality of holes that are arranged at a same axial level of said valve body.

7. The valve according to claim 1 , wherein said at least one first hole has a section that lies in the range of 0.05 mm 2 to 0.8 mm 2 .

8. The valve according to claim 1 , wherein said at least one first hole has a cylindrical section, with a diameter that lies in the range of 0.25 mm to 1 mm.

9. The valve according to claim 1 , wherein said at least one second hole has a section that lies in the range of 0.05 mm 2 to 0.8 mm 2 .

10. The valve according to claim 1 , wherein said at least one second hole is substantially cylindrical, with a diameter that lies in the range of 0.25 mm to 0.75 mm.

11. A fluid dispenser device, comprising the reservoir containing the fluid and a metering valve according to claim 1 , and having the fluid connection, in the rest position of the valve member, to the fluid reservoir containing the fluid to be dispensed so that when the valve is in the upside-down position with the metering chamber arranged below the reservoir while the valve member is in the rest position, the metering chamber is filled by gravity from the reservoir, and so that when the valve is in an upright position with the metering chamber arranged above the reservoir while the valve member is in the rest position, the metering chamber is emptied by gravity into the reservoir.

12. The valve according to claim 11 , wherein said at least one first hole has a section that lies in the range of 0.05 mm 2 to about 0.2 mm 2 and said at least one second hole has a section that lies in the range of 0.05 mm 2 to about 0.2 mm 2 .

13. The valve according to claim 11 , wherein said at least one first hole has a cylindrical section with a diameter that lies in the range of 0.25 mm to about 0.5 mm and said at least one second hole is substantially cylindrical with a diameter that lies in the range of 0.25 mm to about 0.5 mm.

14. The valve according to claim 1 , wherein said at least one first hole has a section that lies in the range of 0.05 mm 2 to about 0.2 mm 2 .

15. The valve according to claim 1 , wherein said at least one first hole has a cylindrical section, with a diameter that lies in the range of 0.25 mm to about 0.5 mm.

16. The valve according to claim 1 , wherein said at least one second hole has a section that lies in the range of 0.05 mm 2 to about 0.2 mm 2 .

17. The valve according to claim 1 , wherein said at least one second hole is substantially cylindrical, with a diameter that lies in the range of 0.25 mm to about 0.5 mm.

18. The valve according to claim 1 , wherein said at least one first hole has a section that lies in the range of 0.05 mm 2 to about 0.2 mm 2 and said at least one second hole has a section that lies in the range of 0.05 mm 2 to about 0.2 mm 2 .

19. The valve according to claim 1 , wherein said at least one first hole has a cylindrical section with a diameter that lies in the range of 0.25 mm to about 0.5 mm and said at least one second hole is substantially cylindrical with a diameter that lies in the range of 0.25 mm to about 0.5 mm.

20. The valve according to claim 1 , wherein said at least one first hole has a section that lies in the range of 0.05 mm 2 to 0.8 mm 2 and said at least one second hole has a section that lies in the range of 0.05 mm 2 to 0.8 mm 2 .

Assignees

• Aptar France Sas

Inventors

• Petit Ludovic
• Piazzoni Eric

Classifications

• F16K3/0218 Primary

  with only one sealing face · CPC title

• B65D83/54

  Operations & Transport · mapped topic

• B65D83/52 Primary

  Metering valves; Metering devices · CPC title