Valve system for formula cartridge

Patent metadata

Field	Value
Publication number	US-11896102-B2
Application number	US-202017133110-A
Country	US
Kind code	B2
Filing date	Dec 23, 2020
Priority date	Dec 26, 2019
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

A valve system comprises: a valve body; a valve cap; and a valve plug between the valve body and valve cap is compressed radially and axially, and a central bore extends wholly through the valve body and valve cap and partially through the valve plug. The valve system is welded to a packet which can contain a hair color formula. One or more of the packets are then used in a cartridge compatible with a dispensing device.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A valve system, comprising:
a valve body;
a valve cap; and
a valve plug between the valve body and valve cap is compressed radially and axially, and a central bore extends wholly through the valve body and valve cap and partially through the valve plug;
the valve body further comprises a flange with a first and second barb securing the valve cap to the valve body.

2. The valve system of claim 1 , wherein the valve plug is a silicone or silicone copolymer elastomer.

3. The valve system of claim 1 , comprising a coating on the exterior of surface the valve plug.

4. The valve system of claim 1 , wherein the valve plug comprises more than one section with different outer diameters.

5. The valve system of claim 4 , comprising a conical section between the more than one sections with different outer diameters.

6. The valve system of claim 1 , wherein the valve body comprises a plurality of fins on the circumference of the valve body.

7. The valve system of claim 1 , wherein the valve cap comprises flanges with slots engaged with the first and second barbs.

8. The valve system of claim 6 , wherein the flange is elliptical.

9. The valve system of claim 1 , wherein the valve body comprises a disk with a hole, and the valve plug is supported on the disk.

10. A packet, comprising:
one or more sheets welded together to secure the valve system of claim 1 in a weld; and
a hair color formula in the packet.

11. A cartridge, comprising:
an exterior housing; and
the packet of claim 10 secured to the exterior housing through the valve system.

12. The cartridge of claim 11 , comprising a first and second packet, wherein the first packet includes a hair color formula and the second packet includes a developer.

Assignees

• Oreal

Inventors

• Levi Damien
• Lee Ji
• Sinclair Nicholas
• Huff Ii Richard Craig

Classifications

• A45D19/022 Primary

  for applying simultaneously two or more substances, e.g. colouring agents, to the hair without prior mixing · CPC title

• B65B7/025

  Closing valve bags · CPC title

• B65B51/10

  Applying or generating heat or pressure or combinations thereof {(welding of plastics per se B29C65/02; closing plastic tube ends in general B29C57/10)} · CPC title

• B65D75/5872

  Non-integral spouts · CPC title

• B65D77/067

  combined with a valve, a tap or a piercer · CPC title