Flashing and sound generating lamp
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United States of America Patent
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Jan 15, 1980
Grant Date -
N/A
app pub date -
May 5, 1978
filing date -
May 5, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A flashing and sound generating lamp that repeats on-off operation and generates a characteristic audible sound when an electric current is supplied to the lamp. The lamp comprises a thermally bendable member connected in series or in parallel with the lamp filament to effect on-off energization of the filament as a result of the bending of the member due to the presence and absence of radiant heat from the filament, and a concavity is prefabricated into the thermally bendable member to cause the member to bend with a snap action thereby to generate a characteristic sound each time the lamp is turned on and off.
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