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House/garage smoke detector

  • US 5,973,603 A
  • Filed: 12/17/1997
  • Issued: 10/26/1999
  • Est. Priority Date: 12/17/1997
  • Status: Expired due to Fees
First Claim
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1. An house and garage alarm system comprising, in combination:

  • a building having a lower basement with a water heater and a heater unit and upper living quarters;

    a garage situated distant the building for storing purposes;

    a plurality of detector housings including a first detector housing situated within the basement of the building and a second detector housing situated within the garage;

    a plurality of smoke detectors each situated within an associated one of the detector housings and including a detection module adapted to generate an enable signal upon the detection of an amount of smoke greater than a predetermined amount, an oscillator connected to the detection module and adapted to emit a first activation signal with a unique associated frequency upon the receipt of the enable signal, an audio amp connected to the oscillator for transmitting the first activation signal to an output thereof at a greater magnitude upon the receipt thereof, and a signal output jack connected to the output of the audio amp;

    a plurality of carbon monoxide detectors each situated within an associated one of the detector housings including a detection module adapted to generate an enable signal upon the detection of an amount of carbon monoxide greater than a predetermined amount, an oscillator connected to the detection module and adapted to emit a second activation signal with a unique associated frequency upon the receipt of the enable signal, an audio amp connected to the oscillator for transmitting the second activation signal to an output thereof at a greater magnitude upon the receipt thereof, whereby the signal output jack is connected to the output of the audio amp of the carbon monoxide detector;

    a plurality of power conversion mechanisms each situated within a corresponding one of the detector housings, each power conversion mechanism including a transformer connected to a conventional alternating current source of a first voltage for stepping down the first voltage to a second voltage less than the first voltage, a bridge rectifier for rectifying the alternating current, a voltage regulator for converting the rectified alternating current to a direct circuit, and a battery connected to an output of the voltage regulator with a diode connected therebetween for providing direct current upon the lack of receipt of the alternating current by the transformer and further recharging upon the receipt of the alternating current by the transformer, each power conversion mechanism connected to the smoke detector and carbon monoxide detector situated within the associated detector housing and further connected to the signal output jack mounted on the associated detector housing;

    a plurality of alarm housings each having a signal input jack, a tone detector connected to the signal input jack with a capacitor coupled therebetween for transmitting the activation signal to an output thereof upon the receipt thereof, and an audible alarm connected to the output of the tone detector with a voltage controlled switch connected therebetween for emitting a audible tone corresponding to the frequency of the activation signal upon the receipt thereof, the alarm housings including a first alarm housing situated within the living quarters of the building and a second alarm housing mounted on a exterior surface of the garage;

    a first set of wires including a first wire removably connected between the signal input jack of the first alarm housing and the signal output jack of the first detector housing for transferring power and activation signals therebetween;

    a second set of wires including a first wire removably connected between the signal input jack of the second alarm housing and the signal output jack of the second detector housing for transferring power and activation signals therebetween.

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