Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1990-05-07
1991-07-02
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
151671, 151672, 300 21, A46B 904, A46B 1302
Patent
active
050274635
ABSTRACT:
A toothbrush for use in simultaneously brushing and cleaning the occlusal, lingual and buccal surfaces of the upper and lower teeth of a user. The toothbrush, in the preferred embodiment, is power-driven and includes bristle support member which anchors bristles from opposite surfaces thereof. The bristles are arranged in longitudinal rows including central rows, intermediate rows and outer rows. The central rows are straight while the intermediate and outer rows are curved for engaging the lingual and buccal surfaces. The bristles are shaped and arranged in a heating chamber while being anchored to the bristle support member.
REFERENCES:
patent: 3100309 (1963-08-01), Gambino
patent: 4366592 (1983-01-01), Bromboz
patent: 4493125 (1985-01-01), Collis
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