Air turbine handpiece for dental scaling and other applications

Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool

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Details

433 29, 433120, 433122, A61C 107

Patent

active

044848935

ABSTRACT:
An oscillatory handpiece for a tool bit includes a housing having therewith fluid driven turbine rotor having an eccentric connection to an oscillatable rod which is effectively supported only at the point of its eccentric connection. The handpiece also includes means in the housing along the length of the rod which limits the amount of its oscillation and prevents its rotation. A liquid supply tube is disposed within the rod and supplies liquid to the tool bit which is removably engageable at the front end of the oscillatable rod. Moreover, by control of the oscillation limiting means and selection of materials and dimensions for the rod, harmonic vibrations may be used to augment the eccentrically generated oscillation and thus enhance the motion of the tool bit.

REFERENCES:
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patent: 2714890 (1955-08-01), Vang
patent: 3518766 (1970-07-01), Burt
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patent: 3811190 (1974-05-01), Sertich
patent: 3897134 (1975-07-01), Scrivo et al.
patent: 3956826 (1976-05-01), Perdreaux, Jr.
patent: 4169984 (1979-10-01), Parisi
patent: 4260380 (1981-04-01), Nash
patent: 4289486 (1981-09-01), Sargeant
patent: 4330282 (1982-05-01), Nash

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