Illumination – With implement or hand held holder therefor
Patent
1992-02-27
1992-11-03
Ostrager, Allen M.
Illumination
With implement or hand held holder therefor
362253, 362804, 151671, A46B 904
Patent
active
051601940
ABSTRACT:
A toothbrush comprises a hollow, tubular handle (11) which holds two batteries. A shoulder (14) at the forward end of the handle contains a high output light bulb (10). A head (17) extends integrally from one side of the shoulder, while a tuft of bristles (12) is attached to the distal end of the head. Electrical conduits made of a series of sleeves within the handle and an externally mounted bow spring switch (18) constitute a normally open circuit. Holding the toothbrush automatically compresses the switch to turn on the light bulb. When the head and bristles are placed in the mouth, the light bulb projects a beam of bright light across open space onto the external surfaces of the bristles, teeth and plaque. Thus the visibility of the teeth and plaque is greatly improved to facilitate brushing. In addition, the illumination produces a very appealing visual effect which will induce children to brush more frequently and for longer durations. The brush uses conventional bristles which are illumianted in use and which can extend into the sulcus and other crannies for highly effective brushing and plaque removal.
REFERENCES:
patent: 1844588 (1932-02-01), Meitzler
patent: 3261978 (1966-07-01), Brenman
patent: 4779173 (1988-10-01), Carr et al.
patent: 5030090 (1991-07-01), Maeda et al.
Ostrager Allen M.
Pressman David
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