Dentifrice dispensing electrical toothbrush

Details Dentifrice dispensing electrical toothbrush Dentifrice dispensing electrical toothbrush

2005-06-07

2005-06-07

Walczak, David J. (Department: 3751)

Coating implements with material supply

Including means to apply material-moving force

By compression or suction of gas in reservoir

C401S278000, C401S270000, C433S084000, C433S085000, C433S089000, C433S122000, C433S131000

Reexamination Certificate

active

06902337

ABSTRACT:
A dentifrice dispensing electrical toothbrush using a replaceable dual-channel brush head. The dual-channel brush head has a first channel for housing a drive shaft for bristle oscillation and a second channel for dispensing the dentifrice material. The brush head is mounted on the dual-channel connector of the brush handle which contains a drive mechanism and a pumping mechanism that dispenses dentifrice material from a cartridge in the handle. A manual dispensing configuration uses an external rubber button and an electrical dispensing configuration uses a rotary solenoid for actuating an internal rubber button that applies pumping pressure to the dentifrice material. The latter benefits arthritis sufferers, as no external squeezing action is required.

REFERENCES:
patent: 5640735 (1997-06-01), Manning
patent: 6164967 (2000-12-01), Sale et al.
patent: 6434773 (2002-08-01), Kuo
patent: 6735803 (2004-05-01), Kuo

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