Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1997-11-14
1998-12-08
O'Connor, Cary E.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
366126, A61C 107, A61C 308, B01F 1100
Patent
active
058460772
ABSTRACT:
An air-driven dental scaler has a scaling tool vibrated at a high frequency and low amplitude by a vibratory transducer having a ball within a chamber, a race in the chamber, and air inlets and air outlets arranged for admitting air under pressure into the chamber and directing the air toward the ball adjacent one of the opposite poles of the ball, the relative dimensions of the chamber and the ball providing a relatively small clearance between the ball and the chamber for enabling relatively high speed rotation of the ball within the race in the chamber, in response to the passage of the air under pressure through the inlets into the chamber and through the outlets out of the chamber, and the concomitant transmission of relatively high frequency, low amplitude vibrational energy from the rotating ball to the scaling tool.
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patent: 3444622 (1969-05-01), Mills et al.
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patent: 4260380 (1981-04-01), Nash
patent: 4427384 (1984-01-01), Sertich
patent: 4453919 (1984-06-01), Takeshita
patent: 5035510 (1991-07-01), Fallows et al.
patent: 5190456 (1993-03-01), Hasegawa
Jacob Arthur
O'Connor Cary E.
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