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US 10,682,211 B1Granted
Mixing system and a method of preparing an oral care composition
AssigneeWillo 32 SAS
InventorsDavid Aurélien Barlet, Marc Sednaoui, Jean-Raphaël Ouin
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Abstract
A mixing system adapted for installation within an oral care appliance and a method of preparing an oral care composition to be delivered to a mouthpiece of the oral care appliance are disclosed. Some of the disclosed systems and methods allow for the generation of an on-demand oral care composition for use in dental cleaning.
Claims19
An oral care appliance comprising:
- a housing with a first inlet port and a second inlet port;
- a first cartridge:
- (i) connected to the first inlet port;
- and (ii) holding a concentrated active composition;
- a second cartridge:
- (i) connected to the second inlet port;
- and (ii) holding a neutral solution;
- a mixing chamber:
- (i) enclosed within the housing;
- and (ii) configured to intermix a controlled quantity of the concentrated active composition as received through the first inlet port with the neutral solution as received through the second inlet port;
- a base for the first cartridge, wherein the base connects the first cartridge with the mixing chamber;
- an orifice in the first cartridge to dispense the concentrated active composition from the first cartridge and inject air into the first cartridge;
- a needle in the base, wherein the needle punctures the first cartridge at the orifice, and wherein the needle has a first channel and a second channel;
- wherein the first channel has a smaller dimension than the second channel;
- and
- wherein the oral care appliance is configured to:
- (i) inject air into the first cartridge using the first channel;
- and (ii) dispense the concentrated active composition from the first cartridge into the mixing chamber using the second channel.
15 more elements
Dependencies are inferred from the claim text.