Matrix clamp for dentistry

Details Matrix clamp for dentistry Matrix clamp for dentistry

1989-04-10

1990-04-10

Peshock, Robert

Dentistry

Apparatus

Hand manipulatable implement

A61C 504

Patent

active

049156276

ABSTRACT:
A matrix clamp for dentistry comprises a frame, a threaded rod screwingly displaceable in the frame and having a front end and a rear end, a coulisse block arranged to releasably hold ends of a loop of a matrix band having an adjustable width, the coulisse block being slidingly displaceable by the front end of the threaded rod, a screw element having an inner thread, the rear end of the threaded rod being provided with an outer thread engaging with the inner thread of the screw element provided with a handle, the screw element being formed as a quick tensioning nut which is tiltable relative to a longitudinal axis of the threaded rod, and a tightening spring held on the threaded rod and acting upon the quick tightening nut.

REFERENCES:
patent: 3516162 (1970-06-01), Ainsworth
patent: 3613245 (1971-10-01), Knight

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