Patent ID: 7382252
Filing Date: 2008-06-03
Classification: G08B

Abstract:
1. An emergency signal apparatus for a residence attachable to an upright support, comprising: a housing at the top of said support including a strobe light supported by said housing, a siren supported by said housing, a low voltage battery in said housing for delivering low voltage electric power, said battery being connected in electrical charge receiving relation to said solar panel, a first circuit connecting said strobe light and siren to said battery including a source of high voltage electrical power, a second electrical circuit interconnecting said high voltage electrical power and a part of said first circuit upstream of said radio frequency operated switch and said solenoid operated switch, a transformer in said second circuit converting said high voltage electric power to said low voltage electrical power, a first sensor operated switch in said second circuit between said transformer and the connection of said second circuit to said part of said first circuit, a second sensor operated switch in said first circuit between said battery and the connection of said second circuit with said first circuit, and a charge condition sensor connected in signal receiving relation with said battery and in signal delivery relation with said sensor operated switches, said sensor operated switches operating to connect said first circuit only to said battery when said sensor senses a predetermined high battery charge condition and operating to only connect said transformer to said first circuit when said sensor senses a predetermined low battery discharged condition.