Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Patent
1986-03-31
1987-12-01
Swiatek, Robert P.
Brushing, scrubbing, and general cleaning
Implements
Brush or broom
15167R, A46B 1302
Patent
active
047094389
ABSTRACT:
A toothbrush is provided which has a headpiece with a cylindrical brush and a handle. By means of a gravity switch the direction of rotation of the brush is reversed according to the turning movement of the handle, in order to automatically maintain a direction of rotation of the brush from the gums to the crown of the tooth. In order to obtain the correct position of the toothbrush, the brush is provided with a protecting cap leaving an opening in order to form a working region. The gravity switch is arranged parallel to the plane of the free working region of the brush.
REFERENCES:
patent: Re21673 (1940-12-01), Murad
patent: 1638133 (1927-08-01), Walker
patent: 2186818 (1940-01-01), Brown
Lepiane Adriene J.
Smith, Jr. John C.
Swiatek Robert P.
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