Electric rotary toothbrush

Details Electric rotary toothbrush Electric rotary toothbrush

1980-07-30

1982-06-22

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

A46B 1302

Patent

active

043354807

ABSTRACT:
An electric rotary toothbrush having an integral stem and brush guard housing within which is an axially moveable brush drive shaft and a removable brush. The brush drive shaft is manually controlled for axial movement by a control knob located on the stem and brush guard housing to lock the brush so that it is rotatably mounted on both sides thereof within the stem and brush guard housing and to allow removal of the brush from the housing.

REFERENCES:
patent: 1822631 (1931-09-01), Roig
patent: 1927566 (1933-09-01), Hawk
patent: 2533106 (1950-12-01), Grover
patent: 2904804 (1959-09-01), Odessey
patent: 3551932 (1971-01-01), Grossman

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