Toothbrush

Details Toothbrush Toothbrush

1983-08-30

1985-10-08

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

A46B 1302

Patent

active

045450870

ABSTRACT:
A toothbrush has a handle and a head portion in which tufts of bristles are mounted in two different types of supports. Supports of a first type are mounted in the head portion for oscillation about axes perpendicular to the length of the bristles so as to be oscillated by rectilinear motion of the toothbrush on the teeth. At least one rack is connected with inner ends of supports of the first type so as to be reciprocated by oscillation of the supports. Supports of a second type are mounted in the head portion for rotation about axes parallel to the length of the bristles. Pinions on the inner ends of supports of the second type mesh with the rack or racks connected with supports of the first type so that the pinions and respective supports of the second type are rotated upon reciprocation of the rack of racks by oscillation by supports of the first type.

REFERENCES:
patent: 4156620 (1979-05-01), Clemens

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