Hermetically sealed electrostrictive actuator

Details Hermetically sealed electrostrictive actuator Hermetically sealed electrostrictive actuator

1989-11-06

1992-05-12

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310340, 310346, H01L 4108

Patent

active

051131080

ABSTRACT:
A hermetically sealed electrostrictive actuator comprises a metal case and a metal cap for housing an electrostrictive element therein. The metal cap is provided with a pair of glass sealing terminals to be connected to a pair of lead wires of the electrostrictive element. The metal case is provided a flexible region so as to follow the expansion and constraction of the electrostrictive element without breaking the hermetic envelope of the metal case and the metal cap.

REFERENCES:
patent: 3390287 (1968-06-01), Sonderegger
patent: 3482121 (1969-12-01), Hatschek
patent: 3496102 (1970-02-01), List et al.
patent: 4011474 (1977-03-01), O'Neill
patent: 4406966 (1983-09-01), Paros
patent: 4460842 (1984-07-01), Waanders et al.
patent: 4553059 (1985-11-01), Abe et al.
patent: 4577131 (1986-03-01), Soobitsky
patent: 4814659 (1989-03-01), Sawada

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