Patent · US Expired

Device and method for cleaning teeth and gums

US6299443A · kind A · utility

4Cited by

4References

23Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Norbert Gerstner · Bolheim, DE
Michael Sauer · Corning, US
Norbert Schaefer · Frankfurt am Main, DE
Michael Stolper · Eschborn, DE

Key dates

Filing date	Sep 13, 1999
Grant date	Oct 9, 2001
Priority date	—
Expiry date	Sep 13, 2019

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61C1/0092
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

The invention is directed to a device (1) for cleaning teeth and gums, which is provided with a liquid container (2) that is joined by way of a liquid supply conduit (7) to an inlet (8) of a pump (9) adapted to be driven by an electric motor (10). The pump, when activated, draws a liquid (3) from the liquid container (2) to the inlet (8). Still further, an air supply conduit (13) is provided which is connected to the liquid supply conduit (7) for the purpose of admixing air to the drawn liquid (3). According to the invention, at least a section (15) of the air supply conduit (13) is arranged at a level above a maximum possible level (14) of the liquid (3). This prevents the escape of liquid (3) from the device (1).

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