Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1992-09-09
1994-12-20
O'Connor, Cary E.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433132, A61C 306
Patent
active
053741897
ABSTRACT:
An integrally formed disposable dental hand piece drive mechanism and prophylaxis fitting which renders less likely cross-contamination of patients by providing an economic, sterile prophy angle which can be discarded after only one use. An output shaft is supported for rotation within a housing. The shaft has an output end which is configured to couple with any of a variety of working tools such as a dentifrice holding cup, a brush, or other dental instrumentality. The output shaft is stimulated into rotation by means of an air stream which is directed on a surface of the output shaft which is within the housing which supports the output shaft. Thus, air, directed to the output shaft via an inlet passage, impinges against the shaft causing rotation. Thereafter the air exits through an outlet passage. An end of the housing remote from the output shaft removably attaches to both a source of air and a duct to receive exiting air.
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Denticator International, Inc.
Kreten Bernhard
O'Connor Cary E.
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