Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1990-07-26
1991-10-08
Swiatek, Robert P.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
A61C 108
Patent
active
050550446
ABSTRACT:
A handpiece with a detachable or removable handpiece sleeve for worktools or dental implements which are releasably inserted with the assistance of a clamping jaw which is rotatable through the intermediary of a drive shaft. The collet is maintained in a clamped position through the action of a spring, wherein the collet has an external conically-tapered end thereof facing towards the implement contacting against a conformingly conically-tapered end of a spindle sleeve facing towards the implement and which is arranged within the handpiece, includes an arresting device. The handpiece sleeve, which is of a single-piece or unitary construction, is retained within an actuating sleeve and is insertable in an axial direction into the actuating sleeve, that in the axial end position the handpiece sleeve is movable through a limited turning or rotational movement into a position in which it is secured against axial movement, and is locked in this position within the actuating sleeve through the intermediary of a latching mechanism thereby producing a handpiece in which there is reduced the danger of potential contamination, the cleaning, care and servicing thereof is rendered easier and, nevertheless, the connection between the handpiece sleeve and the driving and operating components is simplified, so as to thereby render possible an easier assembly and a similarly easy disassembly.
REFERENCES:
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patent: 2376294 (1945-05-01), Wahlberg
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patent: 2876015 (1959-03-01), Steuer et al.
patent: 3475817 (1969-11-01), Loge
patent: 3631597 (1972-01-01), Lieb et al.
Kaltenbach & Voigt GmbH & Co.
Lucchesi Nicholas D.
Swiatek Robert P.
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