Small handpiece with fluid driven turbine

Details Small handpiece with fluid driven turbine Small handpiece with fluid driven turbine

1995-01-31

1996-10-08

O'Connor, Cary E.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

415904, A61C 105

Patent

active

055624464

ABSTRACT:
A small handpiece with a fluid driven turbine is composed of a head portion and a neck portion connected continuously to the head portion. The head portion has a head defining a chamber therein, turbine blades mounted on a turbine rotor shaft and arranged within the chamber and the turbine rotor shaft rotatably supported in the head via bearing portions. The neck portion has a main body, a supply channel arranged in the main body to supply compressed fluid to the turbine blades within the chamber and an exhaust channel arranged in the main body to discharge the compressed fluid from the chamber. The supply channel has a single supply port. A positional relationship between the single supply port and an exhaust port of the exhaust channel is set so that the exhaust port is arranged at a position proximal to the supply port.

REFERENCES:
patent: 3128988 (1964-04-01), Mandroian
patent: 3955284 (1976-05-01), Balson
patent: 4786251 (1988-11-01), Ruegsegger

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