Dental tool handpiece assembly with removable spacer member

Details Dental tool handpiece assembly with removable spacer member Dental tool handpiece assembly with removable spacer member

1977-05-05

1978-09-19

Mancene, Louis G.

Chucks or sockets

Radially reciprocating jaws

279 1A, 408226, A61C 114

Patent

active

041142764

ABSTRACT:
A dental tool handpiece is provided with a spacer member which may be inserted into the collet of the handpiece which normally receives the tool and which has longitudinal slots adapting the collet to grip the tool when in operative engagement therein. The spacer member adapts the handpiece assembly to receive a shorter tool member within the bore defined within the collet, and when a tool member whose length is too short to reach the normal abutment surface must be operatively engaged within the collet, the spacer member may be inserted therein to shorten the depth of the bore and provide a substitute abutment surface for the shorter tool member. The spacer member includes a handle portion which is located to extend to within one of the longitudinal slots of the collet in order to facilitate guiding of the spacer member in place within the collet.

REFERENCES:
patent: 514073 (1894-02-01), Hesse
patent: 1674486 (1928-06-01), Stark
patent: 1765362 (1930-06-01), Berry
patent: 3923413 (1975-12-01), Giles

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