Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1979-12-04
1981-06-30
Mancene, Gene
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433133, A61C 112, A61C 108
Patent
active
042760259
ABSTRACT:
In a dental handpiece having a drive motor, a grip section coupled to the drive motor and terminating in a head part having a socket for supporting a tool for rotation, the grip section having a drive train for transmitting rotation motion of the drive motor to the socket with the drive train including at least two drive shaft sections interconnected by meshing gears and the grip section having an angle portion so that one drive shaft section adjacent the socket extends at an angle of inclination to the other drive shaft section on the axis of the drive motor characterized by an improvement of the angle of inclination being formed in at least two stages with an additional drive shaft section interposed between the one drive shaft section adjacent the socket and other drive shaft section on the axis of the drive motor. The additional drive shaft section will form an individual angle with each of the two drive shaft sections with each individual angle being less than the angle of inclination but at least one-fourth of the angle of inclination and preferably being approximately half of the angle of inclination.
REFERENCES:
patent: 3092908 (1963-06-01), Flatland
patent: 3229369 (1966-01-01), Hoffmeister et al.
patent: 4047301 (1977-09-01), Eibofner
Mancene Gene
Siemens Aktiengesellschaft
Wilson John J.
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