Back to results
US 2003/0198503 A1Published application
Toothbrush assembly with toothpaste dispenser
OwnerC. David Gordoninventor
Life of this patent
Estimating the term…
Abstract
A toothbrush assembly includes a canister housing a spring biased piston, a cartridge for storing dentifrice (toothpaste) releasably received in the canister, and a brush head attached to a stem that is connected to the cartridge. A passage extends through the stem and connects an aperture in the brush head with an interior of the cartridge. A normally closed valve controls the flow of the dentifrice through the passage which dentifrice is pressured by the spring biased piston.
Claims18
A toothbrush assembly comprising:
- a canister housing a spring biased piston;
- a cartridge having a hollow interior for storing dentifrice and being releasably received in said canister with said piston extending into an open lower end of said cartridge;
- a brush head stem having a brush head and being connected to said cartridge, a passage extending through said stem connecting at least one aperture formed in said brush head with said interior of said cartridge;
- and
- a normally closed valve cooperating with said passage for controlling a flow of dentifrice from said interior of said cartridge to said at least one aperture in said brush head.
2 more elements
A toothbrush assembly comprising:
- a substantially hollow canister having a spring biased piston disposed in an interior thereof;
- a cartridge for storing dentifrice releasably received in said canister, said cartridge having an open upper end and an open lower end, said piston being received in said open lower end for sliding movement in an interior of said cartridge;
- a substantially hollow stem having one end connected to said open upper end of said cartridge;
- a brush head attached to another end of said stem with a passage extending through said stem connecting at least one aperture in said brush head with the interior of said cartridge;
- a check valve disposed in said passage intermediate said cartridge and said at least one aperture in said brush head;
- and
- a normally closed valve operable to control the flow of dentifrice from said interior of said cartridge to said at least one aperture in said brush head.
4 more elements
Dependencies are inferred from the claim text.