Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Patent
1975-12-18
1977-05-03
Feldman, Peter
Brushing, scrubbing, and general cleaning
Implements
Brush or broom
15 28, 32 59, A46B 708
Patent
active
040205223
ABSTRACT:
A bristle ring for use in dental care comprises a rotating cup, at least two rows of bristles arranged in ring shape, the bristles being mounted in said cup and forming a configuration of outwardly diminishing cross-section of frusto-conical shape, the foremost portions of the bristles having a frusto-conical shape of outwardly diminishing cross-section and the inner row of bristles extending beyond the adjoining outer row so as to protrude beyond said frusto-conical configuration and form an outer circular sharp edge.
REFERENCES:
patent: 1391221 (1921-09-01), Tuttle
patent: 1526579 (1925-02-01), Albertson
patent: 3177510 (1965-04-01), Mack
patent: 3335444 (1967-08-01), Weiler
Feldman Peter
Striker Michael J.
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