US 2001/0042280 A1Published application

Toothbrush having an efficacious bristle pattern

AssigneeColgate-Palmolive Company

InventorsRobert Moskovich, Kenneth Waguespack, Eyal Eliav, Eric Chan, Kyoungeun Ahn

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Abstract

The present invention relates to an enhanced cleaning toothbrush bristle pattern, wherein two rows of taller bristle tufts transversely divide the toothbrush head into three sections, the bristle tufts within each section having a trim pattern which in profile is convex in relation to the toothbrush face; wherein the two rows of taller bristle tufts penetrate between teeth, while the curved trim profile of each section provides for good conformity to the curved tooth surfaces and for an improved sweeping action.

Claims19

Dependent claims

An enhanced cleaning toothbrush comprising:

(a) an elongated handle (12);
(b) an elongated head (14) connected to and extending from the handle (12), the head (14) ending in a toe (30) distal from the handle(12),
(c) the elongated head (14) having a face (22) on one side thereof and a longitudinal axis (A-A) therethrough;
(d) a plurality of flexible bristle tufts, each with one end secured to said face (22) and the other, free end, extending therefrom;
(e) said head (14) being divided, by two rows of bristle tufts (24, 26) extending in height at least 1.0 cm above the face (22), which rows are oriented generally transverse to the longitudinal axis (A-A) and extend substantially across the toothbrush head (14), into a first section of bristle tufts (16) adjacent to the toe (30) and having a curved trim profile with a first radius of curvature (R1) convex to the toe (30), a second section of bristle tufts (18) located between the two rows of bristle tufts (24, 26) and having a curved trim profile with a second radius of curvature (R2) convex to the brush face (22) and a third section of bristle tufts (20) located adjacent to the handle (12) and having a curved trim profile with a third radius of curvature (R3) convex to the handle (12);
(f) the two rows of bristle tufts (24, 26) being spaced at least 1.2 cm apart.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/788,929Filed 20 Feb 2001
Priority: 18 May 2000
Published: 22 Nov 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

A46B 9/028
Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups: bristle profile, the end of the…
A46B 9/045
Arranged like in or for toothbrushes: specially adapted for cleaning a plurality of tooth surfaces simultaneously
A46B 2200/1066
For human or animal care: toothbrush for cleaning the teeth or dentures
Y10S 15/05
Brushing, scrubbing, and general cleaning: varied length bristle

Family

Application29/123,437Continuation in part · filed 18 May 2000
Application29/129,978Continuation in part · filed 26 Sep 2000
Application09/788,929Continuation in part · filed 20 Feb 2001
US 6,643,886 B2Related patent
US D440,767 S1Related patent
US D451,284 S1Related patent
US 2001/0042280 A1This patent

From the US filing history. Foreign family members aren’t listed.

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