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Emergency alarm system

  • US 5,790,019 A
  • Filed: 03/15/1996
  • Issued: 08/04/1998
  • Est. Priority Date: 03/15/1996
  • Status: Expired due to Fees
First Claim
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1. A new and improved emergency alarm system for a building comprising following components:

  • (a) a visual alarm generator for triggering visual alarms;

    (b) an audio alarm generator for triggering audio alarms;

    (c) a central control unit to which any other component of the emergency alarm system is directly or indirectly connected, with a major function of said central control unit being triggering and stopping the visual alarm generator and triggering and stopping the audio alarm generator, either simultaneously or separately, upon receiving signals from the other components of the emergency alarm system;

    (d) a visible outdoor board being located adjacent to entrance of the building and displaying any desired information in any desired color, with non-emergency conditions in the building being indicated by one color and emergency conditions in the building being indicated by a different color;

    (e) a power supply means for providing energy to the components of the emergency alarm system;

    (f) a circuit-tester module allowing energization of the visual alarm generator and of the audio alarm generator for a limited period of time;

    (g) a portable control element having a manually-operated control button or switch for triggering or stopping the central control unit when desired;

    (h) a reset switch for stopping an alarm generated by the visual alarm generator and by the audio alarm generator;

    (i) a signal-generating detection means which, upon activation, triggers the power supply means to cause a change in color of the visible outdoor board and triggers the audio alarm generator, said signal-generating detection means comprising;

    i. a signal generating means being connected to the power supply means,ii. a signal detection means being operatively associated with the signal generating means and, upon detection of an emergency condition, activating the signal generating means and, as a result, the signal-generating detection means,iii. a power-failure detector for automatically starting existing shut-off module batteries which are used to make the emergency alarm system immune from temporary interruption, whether intentional or accidental, of power supply to the power supply means, andiv. a hidden sensing circuit comprising;

    A. a series of connected sensors connected to one another in a closed loop,B. an open-circuit detector placed under a covering and connected to the series of connected sensors,C. a power switch and blinker activated by the open-circuit detector,D. a signal generator activated by the power switch and blinker to generate a signal, andE. a multi-display selector which forwards the generated signal to trigger any selected alarms; and

    (j) supplementary devices, including, but not limited to, door bells, cameras, television transmitters, voice units and porch lights, said supplementary devices used for identifying and communicating with an entering party;

    such that said components of the emergency alarm system are connected either directly or indirectly to one another to more clearly identify the building, to minimize possibilities of tampering of the emergency alarm system, to activate, during any emergency situation, the visual alarm generator and the audio alarm generator and to form any desired third parties of the emergency situation.

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