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Universally accessible smoke detector

  • US 5,594,422 A
  • Filed: 05/19/1994
  • Issued: 01/14/1997
  • Est. Priority Date: 05/19/1994
  • Status: Expired due to Fees
First Claim
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1. Smoke detector apparatus comprising a detector with an elongated housing, the housing having first and second ends, the first end forming a base for mounting on a wall of a room and the second end housing a sensor for positioning below a ceiling of the room, remote from the base, a rigid member supporting the sensor within the housing and connecting the sensor to the base within the room, a signal processor placed within the base and connected to the sensor for processing signals transmitted from the sensor, a display on the base for displaying conditions of the detector, wherein the first end of the elongated housing is wall mountable within easy reach without climbing, and display, controls and maintenance functions are at user eye level, further wherein the sensor comprises a smoke sensor, a signal conditioner connected to the smoke sensor, and a preamplifier connected to the smoke sensor, for respectively detecting smoke, conditioning, preamplifying and communicating signals from the sensor to the signal processor in the base, further comprising a power supply mounted in the base and connected to the signal processor and to the sensor, further comprising a drop flag attached to the housing for persistently indicating reduced status of the power supply, and audible and visual output means on the housing for providing system status and alarm indications in response to signals received from the signal processor.

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