Abstract: The detector assembly is connectable to a power line which includes a switch which, when operated, causes power transitions at a power terminal for the detector assembly. The detector assembly includes a code responsive controller which operates in response to a plurality of power transitions occurring within a predetermined time period to deactivate a detector alarm for a determined delay period. The code responsive controller may also operate in response to different numbers of sensed power transitions to control the activation and deactivation of a light forming part of the detector assembly. A code transmitter responsive to the activation and deactivation of the detector alarm transmits an activation code and subsequently a deactivation code over the power line to activate and deactivate other detector assemblies, and a code receiver receives activation and deactivation codes from the power line and controls the activation and deactivation of the detector alarm in accordance therewith.

Abstract: The detector assembly combines an electrically powered detector and alarm and an electrical light into a single unit which is removably attachable to a conventional electrical receptacle. The unit includes a closed housing containing a detector and alarm system, and recessed within the housing is a light bulb socket for reception of a light bulb into a face of the housing. Protruding from an opposite face of the housing is an electrical connector capable of removable attachment to a standard electrical receptacle. A sound transmitter in the housing may transmit audible alarm signals to a remote receiver, which may be mounted in another detector assembly at a remote location to cause this detector assembly to emit alarm signals.

Abstract: The detector and light assembly combines an electrically powered detector and alarm and an electrical light into a single unit which is removably attachable to a conventional light socket. The unit includes a closed housing containing a detector and alarm system and a control circuit. Also recessed flush within the housing is a light bulb socket for reception of a light bulb into a face of the housing, and protruding from an opposite face of the housing is an electrical connector capable of screw-in attachment to a standard socket. The control circuit operates in response to activation of the alarm system to cause a light bulb in the light bulb socket to flash off and on. Otherwise, illumination of the bulb is controlled by a manual switch installed within the housing such that the switch is operable from outside the housing.

Abstract: The combination is described of an electrical smoke, heat detector and electrical light in a single unit which is removably attachable to an electrical fixture. The combination includes a closed housing containing smoke heat sensing alarms. Also recessed flush within the housing is a light bulb socket for reception of a light bulb into a face of the housing. Protruding from an opposite face of the housing is an electrical connector, capable of screw-in attachment to a standard electrical outlet fixture. A switching device to turn the light on or off, forms of which include: push button, toggle switch, or pull chain, is installed within the closed housing such that the switch is operable externally of the housing. A second switching device, also operable externally of the housing activates and de-activates a self-contained battery power source to operate the smoke and heat sensor functions of the combination.