Personal smoke and fire detector and warning unit

Claim 1

An improvement in a combination smoke indicator and alarm comprising a rechargeable battery-powered personal unit comprising means for a visual and an audible alarm; means for smoke and fire detection that combine a light emitting diode coupled with a light dependent resistor and a light activated silicon control rectifier in a smoke chimney with power and controls to activate a mechanical alarm to give a sensitive fire and smoke detection unit capable of detecting both white and black smoke; an AC/DC sustaining unit comprising means for smoke and fire detection by an ionization sensor, means for recharging the batteries in both the personal unit and the sustaining unit, means for a visual and a continuous audible alarm and an emergency light, wherein the improvement consists of a visual alarm of said personal unit having a cover which is spring loaded inactive and becoming visible when said visual alarm of said personal unit activates in the presence of smoke.