Switch device
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United States of America Patent
Stats
-
Sep 1, 1987
Issued Date -
N/A
app pub date -
Mar 3, 1986
filing date -
May 10, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A contactless electrical switch includes a switch element comprising a piezo-resistive transducer (25). Coded toothed cams (16) operated via a shaft (14) deflect the transducer (25) causing corresponding changes in stress and hence resistance. The output of the transducer is amplified and fed to logic circuitry which determines a corresponding current path.
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Cited Art Landscape
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