Electro-pneumatic signal converter

Details Electro-pneumatic signal converter Electro-pneumatic signal converter

1986-02-06

1986-11-25

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310332, H01L 4108

Patent

active

046251391

ABSTRACT:
An electro-pneumatic signal converter is provided with a piezo-electric bending element (3) disposed in a sealed transmitter casing (1) from which a signal output (4) issues. It controls a pneumatic signal transmitter which consists of an air inlet seating (5) and an air outlet seating (6) provided opposite each other in the transmitter casing (1). The piezo-electric bending element (3) is pretensioned against the air inlet seating (5) by a spring. In order to improve its retention and guiding, the piezo-electric bending element (3) is disposed in a chamber (2) which closely surrounds it in the transmitter casing (1), in which support zones (14, 16) spaced-apart in the axial direction are provided for the bending element (3), and in addition the piezo-electric bending element (3) is retained and urged against the support zones (14, 16) by a guide spring (7) fixed in the transmitter casing (1).

REFERENCES:
patent: 3519009 (1970-07-01), Rubin
patent: 3965376 (1976-06-01), Arndt et al.
patent: 4450375 (1984-05-01), Siegal
patent: 4492360 (1985-01-01), Lee et al.
patent: 4545561 (1985-10-01), Brown
patent: 4567394 (1986-01-01), Frisch

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