Illumination – Automatic substitution of power supply or light source
Patent
1997-03-05
1998-12-22
Cariaso, Alan
Illumination
Automatic substitution of power supply or light source
362147, 362284, 362324, F21V 1904
Patent
active
058510613
ABSTRACT:
An emergency lighting fixture which is recessed within a wall or ceiling is disclosed. The emergency lighting fixture is contained within a housing which is installed into a cavity within the wall or ceiling. During the normal operation of the primary lighting system the emergency lighting fixture remains concealed by a panel which is flush with the wall or ceiling. The panel is attached to the housing by hinges and has a mirrored rear surface. Located within the housing is a high intensity halogen lamp and a solenoid piston assembly. Upon the failure of the primary lighting system the solenoid actuates the arm of the piston opening the panel which activates the halogen lamp. The halogen lamp produces a high intensity beam of light which is reflected by the mirrored rear surface of the panel illuminating the desired area.
REFERENCES:
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patent: 4367514 (1983-01-01), Large et al.
patent: 4443836 (1984-04-01), Horiuchi et al.
patent: 4482939 (1984-11-01), Tishman
patent: 4708223 (1987-11-01), Orndorff et al.
patent: 4802065 (1989-01-01), Minter et al.
patent: 5025349 (1991-06-01), Gow
Cariaso Alan
Hegarty William
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