Piezoelectric transducer drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 20, 1981
Issued Date -
N/A
app pub date -
May 29, 1979
filing date -
May 29, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stack of piezoelectric discs for driving the diaphragm of a transducer such as a loudspeaker. The discs are arranged in pairs with the outer edges of each pair supported by engagement with an O-ring against their planar faces. The pairs are connected by studs fixed at the centers of the discs. One end of the stack is secured to a support, and the other end is connected to the diaphragm. In an alternative embodiment, another disc is attached to the stack, with an O-ring cemented between its nodal circle and a rigid support, and a diaphragm is attached to the rim of the disc.
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Cited Art Landscape
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