Current detector flood light lamp removal alarm
First Claim
1. A flood light lamp removal and burnout alarm assembly for security flood light fixtures having at least on one socket accommodating at least one flood light lamp, said socket connected to a power supply for the lamp, the fixture having a low ambient light detector and a motion detector, wherein the assembly detects unwarranted unscrewing of the flood light lamp therefrom and lamp burnouts, comprising:
- a housing containing a perceptible alarm;
said alarm communicating with an alarm logic, said alarm logic turning on said alarm if current drawn is not commensurate with a predetermined load current of said at least one lamp, while said lamp is operational,a means for detecting inoperability of the lamp, said means comprising a current detector detecting changes in a magnetic field induced by load currents, said current detector connected to said at least one socket;
said current detector being activated when said lamp is properly screwed into said socket and is operational;
said current detector being inactivated when current is interrupted when the lamp is burnout, loosened or removed from the socket and is not operational; and
a physical sensor switch for detecting the loosing or removal of the lamp from its socket to generate said alarm regardless of the operational status of said lamp.
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Accused Products
Abstract
A flood light lamp removal alarm for security lights mounted on or near a home, wherein the lights are designed to turn on automatically if a motion detector is triggered and the ambient light level is low, detects by a current if any of the flood light lamps are unscrewed or loosened, either prior to a burglary or during the attempt to disable the flood light assembly. A central contact of a lamp socket is modified so that it maintains contact with the lamp therein for a longer distance as the lamp is unscrewed out, so that the alarm is triggered before the light from the lamp is disabled. Alternatively, current detectors verify when a lamp is loosened from a socket by detecting changes in current draw across the socket.
204 Citations
15 Claims
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1. A flood light lamp removal and burnout alarm assembly for security flood light fixtures having at least on one socket accommodating at least one flood light lamp, said socket connected to a power supply for the lamp, the fixture having a low ambient light detector and a motion detector, wherein the assembly detects unwarranted unscrewing of the flood light lamp therefrom and lamp burnouts, comprising:
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a housing containing a perceptible alarm;
said alarm communicating with an alarm logic, said alarm logic turning on said alarm if current drawn is not commensurate with a predetermined load current of said at least one lamp, while said lamp is operational,a means for detecting inoperability of the lamp, said means comprising a current detector detecting changes in a magnetic field induced by load currents, said current detector connected to said at least one socket; said current detector being activated when said lamp is properly screwed into said socket and is operational; said current detector being inactivated when current is interrupted when the lamp is burnout, loosened or removed from the socket and is not operational; and a physical sensor switch for detecting the loosing or removal of the lamp from its socket to generate said alarm regardless of the operational status of said lamp. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A flood light lamp removal and burnout alarm assembly for home security flood light fixtures having at least on one socket accommodating at least one flood light lamp, said socket connected to a power supply for the lamp, the fixture having a low ambient light detector and a motion detector, wherein the assembly detects unwarranted unscrewing of the flood light lamp therefrom and lamp burnouts, comprising:
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a housing containing a perceptible alarm;
said alarm communicating with an alarm logic, said alarm logic turning on said alarm if current drawn is not commensurate with a predetermined load current of said at least one lamp, while said lamp is operational,a means for detecting inoperability of the lamp, said means comprising a current detector detecting changes in the current, said current detector connected to said at least one socket; said current detector being activated when said lamp is properly screwed into said socket and is operational; said current detector being inactivated when current is interrupted when the lamp is burnout, loosened or removed from the socket and is not operational; and a physical sensor switch for detecting the loosing or removal of the lamp from its socket to generate said alarm regardless of the operational status of said lamp. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A flood light lamp removal alarm assembly wherein a motion detector subassembly is mounted remotely from a plurality of flood light lamps, and from a control circuit and alarm, said assembly comprising:
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a housing containing a perceptible alarm;
said alarm communicating with an alarm logic, said alarm logic turning on said alarm if current drawn is not commensurate with a predetermined load current of said at least one lamp, while said lamp is operational,an alarm engaging control circuit being located remotely from said lamps and said motion detector, said control circuit supplying power to said lamps through a current detector if motion is detected by said motion detector, said motion detector having a transmitter alerting said control circuit with a coded burst of radio signals which are received in a wireless fashion by a receiver of said control circuit, said motion detector being powered through an AC to DC converter with a storage battery on a float charge, said motion detector functioning even if a power line to said motion detector is cut, wherein if said power line is cut to said lamp, said current detector sounding said alarm when said motion detector is triggered, said current detector sensing the difference between the current of said plurality of lamps and that of a single lamp or no lamp, said current detector triggering the alarm set condition if less than a full lamp current is detected, said alarm set condition turning into an alarm signal if said alarm set condition happens simultaneously with the reception of said signal burst of said motion detector.
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Specification