Emergency flashlight

Illumination – Self powered lamp – Lamp bulb or lamp support axis adjustable or angularly fixed...

Reexamination Certificate

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Details

C362S192000, C362S193000, C362S399000, C362S446000, C362S249070, C362S096000

Reexamination Certificate

active

06322233

ABSTRACT:

BACKGROUND OF THIS INVENTION
Most conventional flashlights are powered by storage batteries which typically produce 1.5 volts. A given flashlight may have 1, 2 or more such batteries. A plurality of such batteries is typically hooked up in series so as to produce a total of 3 volts, 4.5 volts, 6 volts, etc.
In order to avoid the necessity of purchasing batteries from time to time, it is possible to construct a flashlight in which the electrical energy is produced by mechanical action, somewhat similar to a bicycle-mounted generator which energizes a light mounted on the handlebars. In one prior development, an elongate housing includes a generator and a hand-operated squeeze trigger, along with the standard light bulb and reflector. The operator continuously squeezes the squeeze trigger, which, through a form of one-way rack-and-pinion gearing, rotates the generator, thus producing electrical energy. The quantity of energy thus produced, however, is limited. Accordingly, it is an object of one aspect of this invention to provide an improved, mechanically-operated flashlight which utilizes centrifugal force to rotate a crank, the energy of which is turned into electrical power by an internal generator.
GENERAL DESCRIPTION OF THIS INVENTION
Accordingly, this invention provides an emergency flashlight comprising:
a handle portion shaped and sized so as to be easily grasped manually;
a rotary portion mounted on the handle portion for rotation about a rotary axis with respect to the handle portion;
an elongate portion having two ends, one end being mounted on the rotary portion for rotation therewith, the other end extending substantially radially away from said rotary axis;
a light-producing member mounted on the elongate portion adjacent said other end;
the handle portion including generating means and gear means by which electrical energy can be manually created by swinging the handle portion with a circular motion, thereby causing the elongate portion and rotary portion to rotate about the rotary axis; and
conductive means for conducting said electrical energy to said light-producing member.


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patent: 6086244 (2000-07-01), Ridge

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