Exit sign with removable emergency power pack module

Details Exit sign with removable emergency power pack module Exit sign with removable emergency power pack module

G - Physics

09

F

G09F 13/06 (2006.01) G09F 13/04 (2006.01) G09F 13/14 (2006.01) H02J 9/00 (2006.01) G09F 13/00 (2006.01)

Patent

CA 2047830

In an exit sign, an insertable battery pack module is designed to fit in the lower portion of the exit sign housing. This battery pack module incorporates a pair of lamps as well as a battery, battery charger and transfer circuitry. The module incorporates a pair of reflective surfaces so that light form lamp filaments tangentially hit at least a portion of the exit sign stenciled area along the bottom portion of the letters forming the word EXIT. If an exit sign is only to have utility AC power, then the module need not be installed within the exit sign. In this configuration, the bottom portion of the exit sign can incorporate a slidable panel which is removed if the battery pack module is later inserted. The battery pack module incorporates the indicator light and test button which then would show through the area where the panel formerly resided. This exit sign provides a clean appearance unlike prior art exit signs wherein the battery backup module is typically added onto the outside of the existing exit sign.

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