Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Patent
1987-10-29
1989-01-10
Feldman, Peter
Brushing, scrubbing, and general cleaning
Implements
Brush or broom
15172, 15144A, 403142, A46B 904
Patent
active
047963255
ABSTRACT:
A toothbrush has a brush portion pivotally connected to the handle. The head portion of the toothbrush may be provided with a pair of opposed facing brushes for simultaneously brushing both sides of a tooth. Three different pivotal mechanisms may be utilized for securing the head portion of the toothbrush to the handle at a selected angular adjustment. In a first embodiment, a slip ring is utilized to squeeze a collet around a pivot ball. In a second embodiment, a pivot ball is retained in adjusted position by frictional engagement with a socket in the handle of the brush. In a third embodiment, a threaded sleeve is utilized to lock a pivot ball attached to the head portion of the toothbursh in an adjusted position.
REFERENCES:
patent: 541727 (1895-06-01), Dennis
patent: 1779057 (1930-10-01), Tolmach
patent: 2749567 (1956-06-01), Kreuger
patent: 3953907 (1976-05-01), Froidevaux
patent: 4654922 (1987-04-01), Chen
Feldman Peter
Kearns Jerry T.
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