Dynamo-powered torch

Details Dynamo-powered torch Dynamo-powered torch

1997-09-23

1998-11-24

Yeung, James C.

Illumination

Self powered lamp

Generator power source

362183, 320 2, 320 61, B60Q 100

Patent

active

058398171

ABSTRACT:
A dynamo-powered torch operative without a power supply in the form of a battery is disclosed. The dynamo-powered torch includes a cylindrical hollow body and a dynamo housed in the cylindrical hollow body. The cylindrical hollow body has a knob disposed at a rear end thereof. The knob has an axle centrally mounted on a face of the knob and a spiral power spring mounted around the axle. A clamp is mounted on the axle of the knob and driven by the spiral power spring. A gear train, which includes a first gear, a second gear, a drive shaft, a third gear and a forth gear, is provided for driving the dynamo. Two conductor strips extends from the dynamo to a bulb which is lit by current passing from the dynamo to the bulb via the conductor strips.

REFERENCES:
patent: 1450500 (1923-04-01), Harvey
patent: 1917486 (1933-07-01), Beck
patent: 2490309 (1949-12-01), Lehman
patent: 3099402 (1963-07-01), Speck

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