Sensor control and display unit for dental apparatus

Details Sensor control and display unit for dental apparatus Sensor control and display unit for dental apparatus

1993-01-26

1994-12-06

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

433229, H01H 1370, A61C 1900

Patent

active

053713320

ABSTRACT:
A control board for a dental apparatus contains a control panel (1) having a plurality of key surfaces (2) for the actuation of sensor devices (3) that respond to a force or a change in force. The sensor devices (3), facing toward the operating side, are covered by a thin front plate (4a) of transparent material. The front plate (4a) is provided with an all around, lateral edge (5) that is an integral component part of the front plate (4a) and thus forms a frame (4) that is closed at the front side and surrounds the control panel. At least the front plate (4a) and, preferably, the entire frame (4) is composed of glass.

REFERENCES:
patent: 3699294 (1972-10-01), Sudduth
patent: 4382165 (1983-05-01), Balash et al.
patent: 4594482 (1986-06-01), Saito et al.
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patent: 4646062 (1987-02-01), Arakawa
patent: 4746953 (1988-05-01), Knodt
patent: 4894493 (1990-01-01), Smith et al.
patent: 4901074 (1990-02-01), Sinn et al.
patent: 5033238 (1991-07-01), Zubler
patent: 5084730 (1992-01-01), Deguchi

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