Piezoelectric snap actuator

Details Piezoelectric snap actuator Piezoelectric snap actuator

1980-10-24

1983-05-10

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310332, 200181, H01L 4108

Patent

active

043831958

ABSTRACT:
A piezoelectric actuator including a piezoelectric element; a snap-action device for exerting a positive force in opposition to the piezoelectric element and having a predetermined reaction force that must be overcome to cause the snap action; the piezoelectric element including piezoelectric means for providing an opposing force to the snap-action device in excess of the reaction force; and means for applying an electric field to the piezoelectric means to enable it to generate the opposing force and store energy in the snap-action device to enable occurrence of the snap action.

REFERENCES:
patent: 2587482 (1952-02-01), Keller
patent: 2714642 (1955-08-01), Kinsley
patent: 2800551 (1957-07-01), Crownover
patent: 2835761 (1958-05-01), Crownover
patent: 2916578 (1959-12-01), Crownover
patent: 3940637 (1976-02-01), Ohigashi et al.
patent: 3976899 (1976-08-01), Fanshawe

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