Electricity: circuit makers and breakers – Special application – Change of inclination or of rate of motion responsive
Patent
1976-03-29
1977-05-24
Scott, James R.
Electricity: circuit makers and breakers
Special application
Change of inclination or of rate of motion responsive
200 6193, 200277, H01H 3514, H01H 112
Patent
active
040257444
ABSTRACT:
A shock and vibration sensitive switch is shown constructed from a toroidally shaped disc having a conductive outer periphery supported by sharp, film-penetrating contacts mounted in an insulated housing. The switch may be used in a security system which is energized by the shock and vibration accompanying an unauthorized entry to trigger an alarm. The insulated housing is wafer-shaped and mounts C-shaped contacts that permit the sensor to be unobtrusively mounted in either direction, which contributes to the security of the system.
REFERENCES:
patent: 2938461 (1960-05-01), Rabinow
patent: 3522395 (1970-07-01), Clarke
patent: 3527906 (1970-09-01), Schwab
patent: 3552768 (1971-01-01), Kaiser
patent: 3671690 (1972-06-01), Parlato
patent: 3735072 (1973-05-01), Six, Jr.
Carpenter M. Michael
Litton Systems Inc.
Scott James R.
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