Control installation for a dental apparatus

Details Control installation for a dental apparatus Control installation for a dental apparatus

1978-07-31

1981-02-10

Rubinson, Gene Z.

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318603, 318568, 318569, G05B 1929

Patent

active

042504392

ABSTRACT:
A control installation for a dental apparatus which has at least one part capable of being moved to a selected position of a plurality of positions characterized by the control installation including a drive motor for moving the part to the selected position, a clock pulse generator coupled to the drive motor creating a pulse received by a pulse counter, a read-only memory producing a nominal or reference value indication, a comparator comparing the nominal value indication with the indication of the counted pulses to produce an error signal which is applied to a switching amplifier and then to the drive motor so that the operation of the drive motor depends on the presence of the error signal with the direction of rotation of the drive motor depending upon the operational polarity of the error signal.

REFERENCES:
patent: 3370289 (1968-02-01), Hedgcock et al.
patent: 3465217 (1969-09-01), Kress
patent: 3675107 (1972-07-01), Barber
patent: 3866973 (1975-02-01), Heubeck
patent: 3984146 (1976-10-01), Krestel et al.
patent: 4128797 (1978-12-01), Murata

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