Toothbrush

Details Toothbrush Toothbrush

1994-05-26

1995-09-12

Roberts, Jr., Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

74 23, A61C 1734, A46B 1302

Patent

active

054487927

ABSTRACT:
A tooth-brush is provided which has a brush shank (4) adapted to be driven electrically by a drive (2) and provided with a brush-head (5) having bristles (6), which brush-head performs movement (8), for example, a loosening movement whose frequency is higher than 30 Hz and whose amplitude is between 0.1 mm and 5 mm, which brush-head performs an additional movement (9), for example, a wiping movement having a frequency of between 1 Hz and 5 Hz. The combination of a rapid loosening movement and a slow wiping movement ensures that the teeth are cleaned in a thorough but gentle manner.

REFERENCES:
patent: 3379906 (1968-04-01), Spohr
patent: 3588936 (1971-06-01), Duve
patent: 4710995 (1987-12-01), Joyashiki et al.

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