Powered toothbrush

Details Powered toothbrush Powered toothbrush

2005-05-17

2005-05-17

Chin, Randall (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

Brushing

C015S022100, C015S028000

Reexamination Certificate

active

06892412

ABSTRACT:
The head of a powered toothbrush includes a first tuft block mounted for rotational oscillation about an axis generally perpendicular to the outer surface of the head, and a second tuft block having fixed bristles or bristles independently movable by being mounted on an elastomeric base. The second tuft block oscillates perpendicular to a longitudinal axis of the head and in an in and out direction perpendicular to the outer surface of the head. A third stationary block may also be mounted on the head of the powered toothbrush. The bristles on the first, second, and third tuft blocks may be of various lengths, colors and stiffness, and may be mounted perpendicularly to or at an angle to the outer surface of the head.

REFERENCES:
patent: 1798641 (1931-03-01), Zimmerman et al.
patent: 5070567 (1991-12-01), Holland
patent: 5416942 (1995-05-01), Baldacci et al.
patent: 5625916 (1997-05-01), McDougall
patent: 5799354 (1998-09-01), Amir
patent: RE35941 (1998-11-01), Stansbury, Jr.
patent: 5836030 (1998-11-01), Hazeu et al.
patent: 6032313 (2000-03-01), Tsang
patent: 20010001334 (2001-05-01), Gruber et al.

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