Central alarm conditioning detecting and alerting system
First Claim
1. An alarm system for multiple floor buidlings having multiple dwellings on each floor and at least one central fire alarm box on each floor, the system comprising:
- an alarm condition detector in each dwelling connected such that an alarm detection in any one of the alarm condition detectors on one particular floor produces an alarm signal at a central location on that one floor; and
means for activating the fire alarm box on the one floor in response to the production of the alarm signal at the central location by any one of the alarm condition detectors on the one floor.
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Accused Products
Abstract
A central smoke detector alarm system, for a multiple floor, multiple dwelling apartment building, which utilizes the existing components of the fire alarm system found in such buildings. Individual alarm condition detectors, such as smoke detectors, are located in each dwelling on a floor and interconnected with each other. A relay box connects the individual units to an existing fire alarm box on that floor to activate the fire alarm system throughout the building should an alarm condition be detected. The relay box serves as a central power supply source for the individual units and contains circuitry to detect a fault in any of the lines interconnecting the individual detectors and the relay box. A time delay is included in the relay box to delay activation of the fire alarm bell a predetermined time period after an alarm condition is detected.
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Citations
10 Claims
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1. An alarm system for multiple floor buidlings having multiple dwellings on each floor and at least one central fire alarm box on each floor, the system comprising:
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an alarm condition detector in each dwelling connected such that an alarm detection in any one of the alarm condition detectors on one particular floor produces an alarm signal at a central location on that one floor; and means for activating the fire alarm box on the one floor in response to the production of the alarm signal at the central location by any one of the alarm condition detectors on the one floor. - View Dependent Claims (2, 3, 4, 5)
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6. An alarm system for a building having multiple dwellings on a floor and at least one central fire alarm box on the floor, said system comprising:
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an alarm condition detector in at least one of the dwellings on the floor, the alarm condition detector producing an alarm signal at a central location on the floor upon detection of an alarm condition; means for activating the fire alarm box on the floor in response to production of the alarm signal at the central location; means for connecting said alarm condition detector and said means for activating; and means for detecting an abnormal condition in the connecting means. - View Dependent Claims (7, 8)
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9. A monitoring device for an alarm system having a plurality of alarm condition detectors, said device comprising:
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means at a central location for supplying power to each of the alarm condition detectors over a pair of power lines; means at the central location for transmitting an alarm signal received from any one of the alarm condition detectors said alarm signal being transmitted from the alarm condition detectors to the central location over a transmission line separate from said pair of power lines; means for connecting said transmission line in series with said power lines in each of said alarm condition detectors; and coil means at the central location for connecting the transmission line in series with the power lines, for detecting a fault in the transmission or power lines.
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10. A method for detecting an alarm condition in a multiple dwelling, multiple floor building and alerting all the occupants of the building to the existence of the alarm condition comprising the steps of:
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connecting a plurality of smoke detectors on at least one floor in parallel; operatively connecting the plurality of smoke detectors to a pre-existing fire alarm box on the floor; detecting an alarm condition in any one of the multiple dwellings on the floor by means of one of the plurality of smoke detectors and generating an alarm signal indicative of the detected alarm condition; transmitting the alarm signal to a central location on the floor on which the alarm condition is detected; and in response to receipt of the transmitted alarm signal at the central location, actuating the pre-existing fire alarm box to further actuate a central fire alarm system having interconnected audible alarms on each floor of the building to thereby alert the occupants on each floor of the building to the existence of the detected alarm condition in one of the multiple dwellings.
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Specification