Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1985-09-19
1987-03-31
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310317, 310332, 200181, H01L 4108
Patent
active
046545530
ABSTRACT:
This relay has an actuator which has a pair of coupled together driving elements, of a type which deflects according to applied voltage. The actuator deflects in one direction when voltage is applied to one driving element and deflects in another direction when voltage is applied to the other driving element. A bistable switching mechanism has an actuating member and a set of contacts. These contacts are flipped over to a first state when the actuating member is impelled in a first direction and thereafter stay stably in the first state until the actuating member is impelled in a second direction, and similarly are flipped over to a second state when the actuating member is impelled in the second direction and stay stably in the second state until the actuating member is impelled in the first direction. A drive circuit upon command supplies a one shot pulse of relatively short duration to either the one or the other of the driving elements. The actuator is coupled to the actuating member of the bistable switching mechanism, so as when deflecting in the one direction to impel the actuating member in the first direction, and when deflecting in the another direction to impel the actuating member in the second direction. Optionally, the coupling between the actuator and the actuating member of the bistable switching mechanism may have a certain amount of play provided in it, and the driving elements of the actuator may be piezoelectric elements.
REFERENCES:
patent: 2800551 (1957-07-01), Crownover
patent: 2835761 (1958-05-01), Crownover
patent: 2867701 (1959-01-01), Thurston
patent: 2916578 (1959-12-01), Crownover
patent: 3292111 (1966-12-01), Cotton
patent: 4237399 (1980-12-01), Sakamoto
patent: 4383195 (1983-05-01), Kolm et al.
patent: 4395651 (1983-07-01), Yamamoto
patent: 4533849 (1985-08-01), Schnell
patent: 4568849 (1986-02-01), Sato et al.
Ohba Masatoshi
Sato Ryuichi
Taniguchi Tsutomu
Budd Mark O.
Omron Tateisi Electronics Co.
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