Dental handpiece

Details Dental handpiece Dental handpiece

1997-09-24

1998-09-15

O'Connor, Cary E.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

415904, A61C 105

Patent

active

058071083

ABSTRACT:
A dental handpiece includes a turbine arranged in a handpiece head for rotating a tool, wherein the turbine is supported by slide bearings or roller bearings arranged on the side of the rotor or turbine facing the tool and on the side of the rotor or turbine facing away from the tool. The handpiece head includes an air duct for the propulsion air and a return duct for the returned or used air. At least one opening in the turbine chamber wall in the area near the axis is connected through a connecting duct to the return duct.

REFERENCES:
patent: 3175293 (1965-03-01), Borden
patent: 3255527 (1966-06-01), Staunt

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