Combination voltage detector and LED flashlight

Details Combination voltage detector and LED flashlight Combination voltage detector and LED flashlight

2005-08-02

2005-08-02

Vu, David (Department: 2828)

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

C362S202000

Reexamination Certificate

active

06924605

ABSTRACT:
A combination electric field sensor and a flashlight with at least one main LED disclosed that uses a voltage multiple circuit that enables the use of a single AA or AAA battery. The voltage multiple circuit raises the battery voltage from 1.5 volts to approximately 5 volts required to sufficiently energize the main LED. The device includes a voltage detector circuit with a sensor probe which detects the presence of an electric field when the device is placed adjacent thereto and a second LED. The second LED is connected to the voltage detector circuit and designed to flash when placed against an electric field.

REFERENCES:
patent: 3828256 (1974-08-01), Liu
patent: 5103165 (1992-04-01), Sirattz
patent: 5498934 (1996-03-01), Nilssen
patent: 6168288 (2001-01-01), St. Claire
patent: 6231207 (2001-05-01), Kennedy et al.
patent: 6366028 (2002-04-01), Wener et al.

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