Patent · US Active

Brush head and electric toothbrush

US10687925B2 · kind B2 · utility

14Cited by

10References

20Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Ulrich Störkel · Bad Nauheim, DE
Heidrun Schmelcher · Oberursel, DE
Niclas Altmann · Oberstdorf, DE
Anke Renz · Schwalbach, DE

Key dates

Filing date	Jul 18, 2017
Grant date	Jun 23, 2020
Priority date	—
Expiry date	Jun 25, 2038

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61C17/3436
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A brush head for an electric toothbrush comprises an attachable housing and a carrier having a mounting side and mounted for driven oscillatory rotational motion around a rotation axis that extends through a center point on the carrier's mounting side. Each of the tufts has a tufting area of at least about 2.0 mm2. Filaments in each of the tufts have a cross-sectional area perpendicular to their length extension direction that corresponds to a circular cross sectional area having a diameter in the range of between 140 μm and 102 μm, wherein the brush head comprises only tufts of the defined type.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.