TOOTH BRUSH HEAD (VARIANTS) Russian patent published in 1994 - IPC

FIELD: articles of toilet. SUBSTANCE: tooth brush has brush bundles 32 of the first group, which have shortest bristles adapted for brushing large areas, outer bundles 30 in each row of second group of bundles forming gingival bundles, which are inclined outward for at least 12 deg, bundles 36 of the third group disposed at free end of head and departed one from the other. The first variant of embodiment has the third group of bundles inclined aside at an angle of about 30 deg and forward at an angle of about 14 deg and the first group of bundles, where each row of bundles has single large bundle 25. The second variant of embodiment has the first group of bundles with each row containing round bundles 30 disposed aside in spaced relation one relative to the other. The third variant of the embodiment has the first group of bundles, where each row contains quadrangular bundles disposed aside in spaced relation one with respect to the other. All bundles form functional groups of bundles, with each group of bundles serving specific function in the process brushing teeth. Arrangement and orientation of bundles provides for uniform brushing action, which is independent essentially of brushing direction or method. EFFECT: efficient brushing of teeth. 30 cl, 12 dwg