Electric lamp and discharge devices: systems – Automatic substitution of the power supply
Patent
1985-12-26
1988-06-07
Moore, David K.
Electric lamp and discharge devices: systems
Automatic substitution of the power supply
315 33, 315 87, 315 16D, 315161, 315165, 315172, 315175, 362183, 307 64, 307 66, 307 11, 307 23, H02M 7537, H02V 900
Patent
active
047499087
ABSTRACT:
An emergency power supply including an input for connection to a power line, an output for connecting the input to electrical equipment so as to supply power thereto from the power line, a supplemental power supply connected to the output and adapted to supply power to the electrical equipment upon a power abnormality in the power line, an electrical energy storage means connected to the supplemental power supply and adapted to supply electrical energy thereto; and a circuit for detecting the abnormalities in the power line. Also included are an illumination means and a switch responsive to the sensing circuit and connected between the energy storage means and the illumination means, the switch being operable to provide electrical energy flow between the storage means and the illumination means so as to cause illumination thereof during given periods in which the power abnormalities are detected by the sensing circuit and operable to prevent energy flow between the storage means and the illumination means during other periods in which the power abnormalities are not detected by the sensing circuit.
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Electronic Specialists, Inc.
Jarcho Harold G.
Moore David K.
Nickerson Michael J.
Toupal John E.
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