Patent · US Expired

Adjustable bristle toothbrush

US4149293A · kind A · utility

4Cited by

2References

4Claims

0Family size

Assignee

Blendax-Werke R. Schneider GmbH & Co. · DE

Inventors

Helmut Raaf · Schlangenbad, DE
Oskar Heumann · Wiesbaden, DE

Key dates

Filing date	Jun 26, 1978
Grant date	Apr 17, 1979
Priority date	—
Expiry date	Jun 26, 1998

Classification

Technology area (CPC A)Human Necessities
CPC primaryA46B2200/1066
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A toothbrush with a variable adjustment of the operative bristle length, characterized in that it is equipped with a movable perforated plate, arranged over the bristle holder with the bristles extending through the perforations. The plate is adjustable up and down by means of a seesaw or scissor-like mechanism.

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