Patent ID: 6178583
Filing Date: 2001-01-30
Classification: A46B,Y10S

Abstract:
A toothbrush comprising:(a) an elongate member extending between two ends, said elongate member having a head at one of said ends; and(b) said head having a plurality of tufts, each tuft comprising a multiplicity of primary bristles and a predetermined number of secondary bristles, said primary bristles and said secondary bristles having proximal ends attached to said head and distal ends extending outwardly from said head, said tufts having proximal ends attached to said head, distal ends extending outwardly from said head and sides extending between said distal and proximal ends, each tuft having a peak, pairs of adjacent tufts having peaks positioned adjacent one another, said distal ends of said primary bristles in each tuft being angled downwardly from said peak so that the distal ends of primary bristles of adjacent pairs of tufts form a V-shaped profile when looking at said side of said tufts, said secondary bristles extending out from said head to free ends a distance at least 0.5 mm above the highest primary bristle of each peak to form a sparse upper profile in combination with the lower V-shaped profile of said primary bristles; and(c) wherein said head has an outer perimeter and wherein said tufts are arranged on said head so as to define outer tufts adjacent said outer perimeter of said head and inner tufts, wherein a predetermined number of said outer tufts have their peaks extending further away from said head than all of said peaks of said inner tufts.