Electrical switch and circuitry for appliance
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United States of America Patent
Stats
-
May 9, 1989
Grant Date -
N/A
app pub date -
Sep 15, 1986
filing date -
Sep 15, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A safety device for disconnecting an electrical appliance from a power supply, and thereby preventing electrical shock hazards. A normally closed switch connects the appliance to the power supply. A frangible device, such as a flash bulb, maintains the switch in the closed position. A sensor detects a dangerous condition and actuates the flash bulb, which action fragments the envelope of the bulb, whereupon the switch assumes the open position, thereby disconnecting the appliance from the power supply.
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Family
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Cited Art Landscape
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