Electro-pneumatic signal converter

Details Electro-pneumatic signal converter Electro-pneumatic signal converter

1984-01-11

1986-01-28

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, 310328, H01L 4108

Patent

active

045673942

ABSTRACT:
An electro-pneumatic signal converter, having a piezo-electric bending element (1) which bends when an electrical voltage is applied and controls a pneumatic signal transmitter. The piezo-electric bending element (1) is securely clamped in a sealed transmitter casing (4) and controls an air inlet seating (7) and an air outlet seating (8) which are inserted opposite one another in the transmitter casing (4). In the absence of electrical voltage the piezo-electric bending element (1) bears against the air inlet seating (7), against which it is pretensioned. When a voltage is applied, it separates from the air inlet seating (7) and closes the air outlet seating (8). The respective pneumatic signal is taken off on a signal output (10) which is led out of the sealed space (9) of the transmitter casing.

REFERENCES:
patent: 3766415 (1973-10-01), Dame et al.
patent: 3955049 (1976-05-01), MacNeill et al.
patent: 4237399 (1980-12-01), Sakamoto
patent: 4333029 (1982-06-01), Kolm et al.
patent: 4450375 (1984-05-01), Siegal
High-Speed Pulsed Valve Based on a Bimorph Piezoelectric Element by Garnov et al., Instrum & Exp. Tech. (USA) vol. 23, No. 4, pp. 165-168, Aug. 1980.
Drop Generator Crystal Drive Adjustment by G. Golicic, IBM Technical Disclosure Bulletin, vol. 21, No. 5, Oct. 1978, pp. 1949-1950.

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