Dental handpiece

Details Dental handpiece Dental handpiece

1975-01-29

1977-03-29

Peshock, Robert

A61C 110

Patent

active

040140997

ABSTRACT:
A dental hand piece including a closed top housing, a bur tube therein which consists of an integral gear and sleeve, the sleeve having an inwardly-projecting boss to engage a bur and drive it, a resiliently releasable member to hold the bur in the tube against accidental displacement, and a positive retaining member to prevent removal of the tool during operation, so that a dental tool can, by insertion into the tube, and by the rotation of the bur tube, be rotated and also secured in the tube.

REFERENCES:
patent: 2188426 (1940-01-01), Blair
patent: 2263808 (1941-11-01), Hutchinson
patent: 2343364 (1944-03-01), Bochenek
patent: 2791835 (1957-05-01), Staunt

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