Patent ID: 6384732
Filing Date: 2002-05-07
Classification: A47G,G08B

Abstract:
A Christmas tree smoke detector comprising:a housing having a Christmas decorated exterior and a hanging hook suitable for supporting the housing from the limb of a Christmas tree, an air flow passageway between a bottom side of the housing and a top side of the housing, an infrared detector inlet aperture formed through a bottom side of the housing, a push button test switch opening and a power on verification diode opening; and a smoke detector circuit including a test switch operationally installed through the push button test switch opening, a parallel plate ionizing smoke detector positioned in the air flow passageway between the bottom side and the top side of the opening, an infrared detector operationally positioned in connection with the infrared detector inlet aperture so as to detect infrared radiation levels exteriorly of the housing, a piezo speaker for generating an audible alarm, and a control circuit in connection with the test switch, the parallel plate ionizing smoke detector, the infrared detector, the piezo speaker and programmed such that the control circuit causes the piezo speaker to emit an audible alarm when the control circuit is triggered by an activation signal generated by the test switch or a low battery condition, the parallel plate ionizing smoke detector or the infrared detector; the smoke detector circuit being powered by a battery supply positioned within the housing.