Electrical torch

Details Electrical torch Electrical torch

2006-06-08

2009-08-04

Tso, Laura (Department: 2875)

Illumination

Self powered lamp

Cylindrical flashlight casing

C362S202000, C362S208000

Reexamination Certificate

active

07568814

ABSTRACT:
A new and practical electrical torch. The electrical torch includes a canister, a beam cover connected to one end of the canister and a base connected to another end of the canister. The illumination device is installed in the beam cover. It is connected with a positive pole of the power supply. The electric switch is connected to a power supply in the canister. The electric switch includes a single-chip, N channeling MOST (metal oxide semiconductor transistor) and a diode connected in turn. Furthermore, the diode is serially connected with one discharge resistance and energy-saving discharge capacitance. An output pin of the single-chip is connected to a touch switch. The other end of the touch switch is grounded. Moreover, one end of a pull-low resistance is connected to the output pin of the single-chip. The other end of the resistance is grounded. Therefore, this type of electrical torch provides both lighting and may also transmit a warning signal.

REFERENCES:
patent: 6296367 (2001-10-01), Parsons et al.
patent: 6388390 (2002-05-01), Rachwal
patent: 2005/0002186 (2005-01-01), Krieger et al.
patent: 2005/0099805 (2005-05-01), Chapman

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