Dental handpiece

Details Dental handpiece Dental handpiece

1977-08-19

1979-09-11

Mancene, Louis G.

Chucks or sockets

Radially reciprocating jaws

279 1Q, 415503, A61C 110, A61C 112, B23B 522, F03B 1304

Patent

active

041670620

ABSTRACT:
A straight dental handpiece has a tubular housing for a motor driven collet mechanism rotatably supported at one end of the housing. The burr receiving collet mechanism is actuated by a pair of diammetrically opposed cams supported for rotational movement about an axis extended transversely of the housing. In response to rotation of the cams, a cam follower on the collet mechanism is axially moved to actuate the collet mechanism to a burr receiving position. The cams are rotated by an external lever on the housing that is pivotally movable from a longitudinally extended operating position in nested relation with the housing, wherein the burr is gripped in the collet mechanism, to a burr releasing position projected generally radially of the housing.

REFERENCES:
patent: 1835961 (1931-12-01), Pieper
patent: 2693631 (1954-11-01), Redman
patent: 3494364 (1970-02-01), Peters
patent: 3530586 (1970-09-01), Weickgenannt
patent: 4040311 (1977-08-01), Page, Jr. et al.

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