Illumination – Automatic substitution of power supply or light source
Patent
1997-01-17
1998-05-05
Lazarus, Ira S.
Illumination
Automatic substitution of power supply or light source
362105, 362253, 362802, 12820213, 12820612, 12820627, F21V 2300, F21V 3300, F21L 1514
Patent
active
057464928
ABSTRACT:
An emergency light includes a housing having a lamp and having also a battery for energizing the lamp. A smoke-proof mask is disposed in the housing and includes a filter for filtering smoke and means for allowing user the to find the mask easily and quickly. A buzzer may be coupled to the battery for indicating to a blind user where to find the smoke-proof mask easily and quickly. The battery is a rechargeable battery and is coupled to a sensing/switching circuit which may switch the battery to energize the lamp when the AC power supply is not supplied to the sensing/switching circuit.
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Baxley Esq. Charles E.
Ciric Ljiljana V.
Lazarus Ira S.
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