Brushing – scrubbing – and general cleaning – Machines – Brushing
Reexamination Certificate
2005-07-19
2005-07-19
Spisich, Mark (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
Brushing
C015S167100
Reexamination Certificate
active
06918154
ABSTRACT:
A toothbrush has a number of rotatable brush assemblies mechanically linked so as to move together with a handle. Each rotatable brush assembly includes a wheel, with radially projecting bristles, configured to rotate about an axis which is roughly parallel to a plane of contact with the teeth. The axis of rotation is inclined relative to a primary direction of insertion of the toothbrush, corresponding to an extensional direction of the handle, by an angle of between about 15° and about 75°, and preferably closer to 45°.
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Friedman Mark M.
Spisich Mark
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