Fountain toothbrush having bristle carrier easily producible by

Details Fountain toothbrush having bristle carrier easily producible by Fountain toothbrush having bristle carrier easily producible by

1976-07-13

1978-01-17

Pellegrino, Stephen C.

Coating implements with material supply

Including means to apply material-moving force

In or at feeder

401135, 401151, 401180, 222325, A46B 1100

Patent

active

040689743

ABSTRACT:
A fountain toothbrush is described which comprises a bristle carrier having bristles, a handle containing a reservoir for liquid or pasty dentifrice, a duct leading from the reservoir to the bristles, and actuating means which urge the reservoir in a direction out of the handle. A piston has a passage connected to the duct and to the interior of the reservoir and a cylinder sleeve part is provided on the reservoir into which the piston protrudes. When the piston is pushed into the sleeve part towards the reservoir, dentifrice is conveyed onto the bristles. To achieve a hermetic sealing and simultaneously a more exact dosage of the dentifrice, the piston further comprises a valve body which is displaceable relative to the piston and adapted for obturating, toward the end of each stroke of the piston into the sleeve part of the reservoir, an opening connecting the interior of the reservoir with the interior of the sleeve part, and frees this opening again when the piston and the sleeve part are displaced away from one another.

REFERENCES:
patent: 2323378 (1943-07-01), Champion et al.
patent: 3118166 (1964-01-01), Bell
patent: 3910706 (1975-10-01), Del Bon

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