Dental hand drill employing pressure-sensitive grip

Details Dental hand drill employing pressure-sensitive grip Dental hand drill employing pressure-sensitive grip

1975-03-07

1977-05-31

Chamblee, Hugh R.

A61C 108

Patent

active

040260275

ABSTRACT:
A pressure-sensitive grip for a dental hand drill for providing continuous control of the speed thereof. The pressure-sensitive material preferably comprises a strain gage sensing element positioned along the body portion of the dental tool which is normally hand held by the operator. In a fluid-driven dental tool, the strain gage is coupled through a control network which provides an electrical signal to control a proportional valve in the fluid supply line to the drill.

REFERENCES:
patent: 2924114 (1960-02-01), Hitt et al.
patent: 3346958 (1967-10-01), Sinatra et al.
patent: 3423068 (1969-01-01), Hall
patent: 3842504 (1974-10-01), Ricks
patent: 3955283 (1976-05-01), Mehallick

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