Toothbrush

Details Toothbrush Toothbrush

1999-04-13

2000-08-08

Till, Terrence R.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 26, A46B 1308

Patent

active

060982306

ABSTRACT:
A manually operated toothbrush which will move up and down at the same time when moving to and fro, includes a head provided with bristles at a front end thereof and being cylindrical in shape at a rear end thereof, the rear end having a curved groove formed with a circular recess, an elongated tubular handle having a cylindrical cavity at a front end thereof adapted to receive the rear end of the head, the handle having a circular through hole aligned with the circular recess and a drain hole at a rear end thereof, a compressed spring fitted within the handle, a T-shaped pin having a circular projection at the upper end and a smaller circular protuberance at the lower end, the T-shaped pin extending through the circular through hole of the handle and the curved groove of the head to join the handle and the head together, whereby the toothbrush will move up and down at the same time when the toothbrush is moving to and fro as desired.

REFERENCES:
patent: 860107 (1907-07-01), Reminger
patent: 1120812 (1914-12-01), Harbian
patent: 1481891 (1924-01-01), Cruikshank
patent: 1565479 (1925-12-01), Lorraine et al.
patent: 2160835 (1939-06-01), Davids
patent: 2660745 (1953-12-01), Yusko
patent: 4783869 (1988-11-01), Lee
patent: 5311630 (1994-05-01), Nakamura et al.
patent: 5813075 (1998-09-01), Graur

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