Battery powered light source

Details Battery powered light source Battery powered light source

H - Electricity

01

M

240/113, 319/44

H01M 12/06 (2006.01) H01M 2/10 (2006.01) F21L 11/00 (1990.01)

Patent

CA 1287335

- 23 - BATTERY POWERED LIGHT SOURCE Abstract of the Invention A battery powered light source comprising an electric light bulb; a plurality of air cathodes; a plurality of metal anodes, one for each cathode; a plurality of electrically nonconductive housings disposed adjacent to each other, wherein each housing encloses a respective chamber containing one cathode and one anode which are spaced from each other and form an anode-cathode pair and also encloses a cavity which is below the anode-cathode pair and is in fluid flow communication with the chamber, each housing having a portion defining at least one air passage from its chamber to an adjacent housing, and an open- ing through which a surface of the contained cathode is exposed to air in the passage. The housings are secured to each other in such arrangement that their respective air-passage-defining portions cooperative- ly define at least one common air passage. Circuit elements are provided for electrically connecting the anode-cathode pairs to each other and to the electric light bulb.

548494

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