TOOTHBRUSH AND ANCHOR WIRE THEREFOR

Title:

TOOTHBRUSH AND ANCHOR WIRE THEREFOR

Document Type and Number:

WIPO Patent Application WO/2021/253261

Kind Code:

A1

Abstract:

A toothbrush (100) including a head portion (120) formed from bamboo. A plurality of tuft holes (130) are formed into the head portion (120) and a bristle tuft (151) is positioned within each of the tuft holes (130) and secured by an anchor wire (200). The anchor wire (200) may be formed from a metal alloy that includes nickel. The anchor wire (200) includes a plurality of first grooves (210) in its first surface (203) and a plurality of second grooves (220) in its second surface (204). The grooves (210, 220) may have sidewalls (212, 213, 222, 223) that are perpendicular to its floor (211, 221). A width (WG1, WG2) of the grooves (210, 220) may be equal to a spacing (D2, D5) between the grooves(210, 220) and greater than a thickness (T1) of the anchor wire (200).

Inventors:

LIU GUOQIANG (CN)
JI YANMEI (CN)
ZHANG BO (CN)

Application Number:

PCT/CN2020/096485

Publication Date:

December 23, 2021

Filing Date:

June 17, 2020

Export Citation:

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Assignee:

COLGATE PALMOLIVE CO (US)
LIU GUOQIANG (CN)

International Classes:

A46B3/16; A46B5/00

Domestic Patent References:

WO2018135150A1	2018-07-26
WO2006115963A2	2006-11-02
WO2019238906A2	2019-12-19

Foreign References:

CN110113963A	2019-08-09
CN111248611A	2020-06-09
CN1203516A	1998-12-30
JP2001309818A	2001-11-06
EP1088495A1	2001-04-04
KR20140094332A	2014-07-30
DE10163729A1	2003-07-10
CN206896059U	2018-01-19
JP2001309818A	2001-11-06
DE6921338T1
US5740579A	1998-04-21
CN111248611A	2020-06-09

Other References: