Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1980-10-30
1982-06-01
Peshock, Robert
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
A61C 108
Patent
active
043325629
ABSTRACT:
A dental handpiece which has at least two handpiece parts each having a drive shaft and a cooling line segment for at least one cooling line agent and an arrangement for releasably interconnecting the two parts with the gears of the drive shaft in driving engagement, the connecting arrangement including a guide fitting strip arranged on one of the handpiece parts and extending axially therefrom to be engaged in an axial extending guide slot in the other handpiece part to prevent twisting between the connected parts, characterized by the connecting arrangement comprising at least one catch element provided on one handpiece part and coacting with a counter element on the other handpiece part, and each of the cooling line segments of the one handpiece part extending into the guide fitting strip, the other handpiece part having a portion supporting each of its cooling line segments to project from a surface into the guide slot to form an axial connection with the segments of the fitting strip and a sealing arrangement for sealing each of the axial connection being formed.
REFERENCES:
patent: 1355659 (1970-10-01), Evslin
patent: 3229369 (1966-01-01), Hoffmeister et al.
patent: 4255143 (1981-03-01), Schuss et al.
Fleer Ernst-Otto
Schuss Werner
Peshock Robert
Siemens Aktiengesellschaft
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