Dentifrice dispensing toothbrush with refillable cartridge

Details Dentifrice dispensing toothbrush with refillable cartridge Dentifrice dispensing toothbrush with refillable cartridge

1997-03-31

1999-06-08

Walczak, David J.

Coating implements with material supply

Including means to apply material-moving force

In or at feeder

401150, 401171, B43K 502

Patent

active

059099771

ABSTRACT:
A dentifrice dispensing toothbrush utilizes a refillable cartridge for storing dentifrice material and a compressible elastic button for pumping dentifrice material from the cartridge to a brush head. The refillable cartridge has special adaptive features for mounting to different sized openings of toothpaste tubes to facilitate cartridge refilling and venting entrapped air.
The essential components of the dentifrice dispensing toothbrush include 1) a brush head having an outlet opening therethrough and a series of bristles; 2) a pump assembly which has a pump chamber, an elastic compressible button and a base having a flap check valve; 3) a housing for attaching a refillable cartridge; 4) a refillable cartridge having an adaptive annular lip on its top opening for mating with the opening of a toothpaste tube and a plurality of shallow grooves for venting entrapped air, and a two-way follower disc for packing the dentifrice material. The dentifrice dispensing toothbrush optionally includes 5) a venting flip-cap for attachment to a toothpaste tube for releasing entrapped air when a cartridge is being refilled; and 6) a brush cover which seals the outlet opening of the brush head.

REFERENCES:
patent: 5087143 (1992-02-01), Hertrampf
patent: 5096321 (1992-03-01), Mountain
patent: 5346324 (1994-09-01), Kuo
patent: 5393153 (1995-02-01), Bouthillier

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