Dental turbine drive

Details Dental turbine drive Dental turbine drive

1994-06-15

1996-04-16

O'Connor, Cary E.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

415904, A61C 105

Patent

active

055076424

ABSTRACT:
A dental turbine drive which is provided with an arrangement to prevent suctioning of particles after deactivation of the drive air into the return air line. To accomplish this, the turbine space is closed during a run-out phase of the rotor except for an outflow channel that is arranged close to the axis of the rotor shaft adjacent the tool side and is connected to a return air channel. The return air channel can discharge directly into the outflow channel at a point spaced from the main portion of the rotor and a valve arrangement may be presented for closing the air opening once the input air has been interrupted.

REFERENCES:
patent: 3306375 (1967-02-01), Macks
patent: 3542372 (1970-11-01), Edwardson
patent: 3762052 (1973-10-01), Melde
patent: 4435161 (1984-03-01), Masimann
patent: 5158456 (1992-10-01), Lilley
patent: 5340312 (1994-08-01), Murase

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