Nozzle piece for a handpiece of a dental apparatus

Details Nozzle piece for a handpiece of a dental apparatus Nozzle piece for a handpiece of a dental apparatus

2005-01-04

2005-01-04

O'Connor, Cary E. (Department: 3732)

Dentistry

Apparatus

Having intra-oral dispensing means

C433S080000

Reexamination Certificate

active

06837709

ABSTRACT:
A nozzle piece for a handpiece of a dental abrasive blasting apparatus comprises a gripping member for connection with a head portion of the handpiece whereby the gripping member has a closed surface with a thusly defined curvature on its upper and underneath visual surfaces that discharge openings of two discharge nozzles of the nozzle piece are located close to a visual plane which by definition includes a longitudinal axis of the handpiece and outside of which are located the crossing points of two supply ducts with a common central axis of the two discharge nozzles, whereby the two supply ducts extend in parallel and inclined with respect to the longitudinal axis of the handpiece for defining an inclined discharge angle of a working jet of the nozzle piece.

REFERENCES:
patent: 4174571 (1979-11-01), Gallant
patent: 4412402 (1983-11-01), Gallant
patent: 4492575 (1985-01-01), Mabille
patent: 4676749 (1987-06-01), Mabille
patent: 4776794 (1988-10-01), Meller
patent: 4950160 (1990-08-01), Karst
patent: 5098291 (1992-03-01), Curtis et al.
patent: 5765759 (1998-06-01), Bruns et al.
patent: 6439966 (2002-08-01), Bruns et al.
patent: 79 21 732.6 (1985-10-01), None
patent: 0 248 638 (1987-12-01), None
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