Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1981-01-22
1983-01-11
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310326, 310327, 310322, 179110A, H01L 4108
Patent
active
043684017
ABSTRACT:
A transducer plate for piezo-electrical transducers has a piezo-electrical layer or member applied thereon. Unwanted oscillations, in particular the fourth partial oscillation, are attenuated by providing a thickness of the adhesive layer chosen for attenuation properties, and which is thicker than prior art adhesive layers.
REFERENCES:
patent: 3708702 (1973-01-01), Brunnert et al.
patent: 3728562 (1973-04-01), Herson et al.
patent: 3733590 (1973-05-01), Kaufman
patent: 3786202 (1974-01-01), Schafft
patent: 3863250 (1975-01-01), McCluskey, Jr.
patent: 4047060 (1977-09-01), Schafft
patent: 4310730 (1982-01-01), Aaroe
Martin Erwin
Walliser Konrad
Budd Mark O.
Siemens Aktiengesellschaft
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