Patent ID: 8789228
Filing Date: 2014-07-29
Classification: A46B,A46D

Abstract:
1. A bristle for a toothbrush comprising, a plastic monofilament body, the bristle body cloverleaf-shaped in cross-section having at least three longitudinal ribs having an outer contour corresponding to a section of a circular cylinder, which project laterally from a core section of the bristle body, such that the outer contour of each longitudinal rib directly contacts the core section at two or more positions, wherein the bristle body is self-fanning by the action of cleaning forces; and wherein the bristle body is shaped such that a ratio of a diameter P inner of a core enveloping cylinder inscribed by grooves between the longitudinal ribs to an outer dimension P outer of an enveloping cylinder enveloping the longitudinal ribs amounts to 0.5+/−0.15.