Push-button control device for a dental instrument

Details Push-button control device for a dental instrument Push-button control device for a dental instrument

1990-09-06

1992-02-25

Wilson, John J.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

433126, 433128, A61C 114, A61C 108

Patent

active

050909061

ABSTRACT:
The cutting shank of an instrument to be received in the head of a contra-angle of a dentistry handpiece is clamped in position with a pushed-button control device which is displacable counter to a tensioning spring. The control device generally takes the form of at least one reversal element for receiving pressures responsive to movements of the push-button and for converting such movements into a traction movement exerted by the reversal element on the pusher which is used to control the collet chuck which receives the shank of the instrument.

REFERENCES:
patent: 4536157 (1985-08-01), Maizenberg
patent: 4595363 (1986-06-01), Nakanishi
patent: 4611990 (1986-09-01), Lares et al.
patent: 4874314 (1989-10-01), Fleer et al.

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