Encased piezoelectric actuator

Details Encased piezoelectric actuator Encased piezoelectric actuator

1994-09-09

1995-10-03

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310340, H02N 200, H01L 4104

Patent

active

054554772

ABSTRACT:
A strain generating element for generating a strain in accordance with an externally provided driver voltage, a diaphragm secured to one end surface of the strain generating element and having a projecting portion, a case for encasing the strain generating element therein, a first coupler attached to the case, and a second coupler attached to the other end. A first coupler of a first piezoelectric actuator is connectable to a second coupler of a second piezoelectric actuator so that an elongation of the first actuator is transferred to the second actuator through a projecting portion of the first actuator to thereby add the elongation of the first actuator to an elongation of the second actuator in a uniform direction of elongation.

REFERENCES:
patent: 4460842 (1984-07-01), Waanders et al.
patent: 4958100 (1990-09-01), Crawley et al.
patent: 5239223 (1993-08-01), Miyoshi
patent: 5334902 (1994-08-01), Inoi
patent: 5359252 (1994-10-01), Swift et al.

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