Illumination – Self powered lamp – Cylindrical flashlight casing
Reexamination Certificate
1999-07-23
2001-07-17
Husar, Stephen (Department: 2875)
Illumination
Self powered lamp
Cylindrical flashlight casing
C362S197000, C362S198000, C362S199000, C362S194000, C362S184000, C362S208000, C362S157000, C362S200000
Reexamination Certificate
active
06260985
ABSTRACT:
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
This invention relates to portable electric lighting apparatus and, more particularly, to novel such apparatus that serves an extraordinary number of different purposes.
Flashlights and other portable electric lighting apparatus have been known for many decades and have reached a high state of development. Improvements in battery and bulb technology have resulted in flashlights that produce a substantial light output over an extended time period. Focusing devices make it possible to provide flood lighting or spot lighting, interchangeable lenses make it possible to provide lighting of different colors, and multiposition switches make it possible to provide blinking and other operating modes in addition to the basic on and off modes.
The extended and assiduous development of portable electric lights, which continues to this day, attests to the important purposes they serve. Portable electric lights of different specifications are needed, for use especially at night but often during the day:
during commercial power outages;
at home and in the family car to search in basements, attics, closets, drawers, glove compartments and trunks;
at campsites, while hiking or biking on trails, and in other areas away from commercial electrical power outlets;
to enable repair of cars, boats and bicycles;
to find keyholes and operate combination locks.
Indeed, portable electric lights have become indispensable in modern society, so that people today often have many of them, which are stored at various locations around the house and office or other place of business, in cars, trucks, and boats and in pockets, purses, luggage and backpacks.
While portable electric lights are highly evolved and represent good value, no single light developed heretofore is suitable for all of the purposes summarized above. For example, lights that are bright enough for use at long distances tend to be fairly bulky and heavy and not ideally suited for carrying for extended periods of time; and lights that are small enough to carry in a pocket or purse tend to be too dim for use at long distances.
Some conventional portable electric lights have two units that are connected together but operate independently of each other. While that broadens the range of possible lighting applications, it does nothing to address the problem of bulk and weight.
What is needed is portable electric lighting apparatus that provides the brightness and ruggedness of a heavy-duty flashlight while maintaining the convenience of a penlight or pocket flashlight.
OBJECTS AND SUMMARY OF THE INVENTION
An object of the invention is to provide portable electric lighting apparatus that avoids the problems of the prior art noted above. In particular, an object of the invention is to provide in a single package portable electric lighting apparatus that can serve virtually every purpose that any flashlight or portable electric lantern can serve, including the ones mentioned above.
Another object of the invention is to provide portable electric lighting apparatus that is as bright and rugged as a heavy-duty flashlight yet where the need arises is as convenient as a penlight or pocket flashlight and can easily be carried in a pocket or purse.
Another object of the invention is to provide such lighting apparatus that is capable of operating in a plurality of modes independently and simultaneously.
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Cooper & Dunham LLP
Dowden Donald S.
Husar Stephen
Ton Anabel M
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