Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1977-11-11
1980-02-12
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
179 1VC, 328 1, 340148, H03K 326
Patent
active
041885490
ABSTRACT:
A miniaturized acoustically responsive sensor switch that is responsive to localized acoustic sounds including a transducer and a conditioning circuit that is adapted to convert the audio signal produced by the transducer in response to the detection of an acoustic sound into a single output pulse.
REFERENCES:
patent: 3573724 (1971-04-01), Komorida
patent: 3748496 (1973-07-01), Hedin et al.
patent: 3892133 (1975-07-01), Quinn
patent: 4110725 (1978-08-01), Petrosky
Davis B. P.
Federal Screw Works
Miller, Jr. Stanley D.
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