Reversable shaft with rotary and selective oscillating motion

Details Reversable shaft with rotary and selective oscillating motion Reversable shaft with rotary and selective oscillating motion

1980-10-20

1983-08-09

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 23, 74 22R, 310 80, 320 2, A46B 1302

Patent

active

043970559

ABSTRACT:
The apparatus is a rotary shaft mechanism having selective axial oscillation and reversable rotary motion, preferably in a battery powered toothbrush. Within such a toothbrush, the user of same can easily select either a clockwise or counter clockwise rotation of the toothbrush and if desired, an axial oscillation for either rotation. The selective combinations permit the toothbrush to effectively move food particles away from the gum line independent of it's location on the teeth and to polish the teeth with its oscillation motion.

REFERENCES:
patent: 2484471 (1949-10-01), Shinn
patent: 3270360 (1966-09-01), Kropp
patent: 3661018 (1972-05-01), Keefer
patent: 3699952 (1972-10-01), Waters et al.
patent: 4084280 (1978-04-01), May

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