Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1992-07-07
1993-08-03
Mancene, Gene M.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433120, A61C 108
Patent
active
052323633
ABSTRACT:
A dental scaler comprises an elongated housing having a forward end at which a dental scaling tool is removably connectable, and a rearward end for connection to a source of pressure working fluid. A substantially rigid elongated tubular member is resiliently supported in the housing. A vibration imparting device is coupled to an intermediate portion of the elongated tubular member, and is driven by the pressure working fluid to vibrate the elongated tubular member. A dental scaling tool is connected at the forward end portion of the elongated tubular member, and is vibrated by the vibrations produced by the vibration device. A frequency stabilizing weight is fixedly and immovably secured to a rearward end portion of the elongated tubular member for stabilizing the frequency of the vibration imparted to the forward end portion of the elongated tubular member, the weight having an outer dimension smaller than the inner dimension of the housing in the vicinity of the weight so as not to contact the housing during vibration of the elongated tubular member. The weight is preferably substantially disk-shaped, and is preferably arranged close to the rear end of the elongated tubular member. An anti-rotation device may be coupled to a forward end portion of the elongated tubular member for preventing rotation thereof relative to the housing.
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patent: 4589847 (1986-05-01), Loge et al.
Lucchesi Nicholas D.
Mancene Gene M.
Meller Eran
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