Patent · US Expired

Apparatus for removing plaque and stains from the surfaces of teeth

US4696645A · kind A · utility

15Cited by

2References

26Claims

0Family size

Assignee

EMDA Fabrik elektromedizinischer and dentaler Apparate Georg Hartmann GmbH & Co. KG · DE

Inventors

Martin Saupe
Hans Dauernheim · Dreieich, DE
Maximillian Markl · Königstein, DE

Key dates

Filing date	Oct 24, 1985
Grant date	Sep 29, 1987
Priority date	—
Expiry date	Oct 24, 2005

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61C3/025
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Apparatus for removing plaque and/or stains from the surfaces of teeth has an elongated handle which contains a removable cartridge for a supply of flowable solid material and whose nozzle defines a mixing chamber receiving solid material from the cartridge and further receiving compressed air from an adapter which is also connectable to a dentist's drill. The adapter further supplies a stream of water which is discharged by the nozzle through a first orifice. A second orifice of the nozzle communicates with and receives from the mixing chamber a mixture of compressed air and solid material.

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