Illumination – With fluid distributer
Reexamination Certificate
2002-02-28
2003-07-08
O'Shea, Sandra (Department: 2875)
Illumination
With fluid distributer
C362S035000, C362S192000, C362S474000, C362S473000, C416S005000
Reexamination Certificate
active
06588913
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a flashing light-emitting device, and more particularly to a flashing light-emitting device, which includes a wind generator that can convert mechanical energy to electrical energy for energizing a plurality of light-emitting elements.
2. Description of the Related Art
To enhance the safety of riders, a wheeled transport device, e.g., a bicycle or a scooter, is equipped with a light-reflecting device, such as a reflector or a light-reflecting adhesive paper. However, such a light-reflecting device can generate an alerting light only when light is emitted thereon, thereby affecting utility of the device. A light-generating device has been proposed heretofore to solve this problem by using a light emitting diode that serves as a light source. The light emitting diode requires a battery unit to supply electrical power. The light-generating device suffers from a drawback in that it is necessary to replace the battery unit, thereby resulting in environmental pollution and increased costs.
SUMMARY OF THE INVENTION
The object of this invention is to provide a flashing light-emitting device, which includes a wind generator that can convert mechanical energy to electrical energy for energizing a plurality of light-emitting elements and that does not require replacement of any power source.
According to this invention, a flashing light-emitting device includes a rotating member, which is mounted rotatably within a hollow base and which has a plurality of fixed vane elements that can be rotated by air current created when the base moves. A coil unit is wound on a sheave, which is rotatable with the rotating member. Two electrically and magnetically conducting rings are fixed to the sheave, and are formed integrally with a plurality of tongues that are aligned and staggered circumferentially and that extend into the sheave. The coil unit is in electrical connection with the conducting rings and a plurality of light-emitting elements. When the rotating member rotates within the base, the coil unit rotates about a permanent magnet fixed in the base so that electricity is generated on the coil unit. As such, the light-emitting elements can emit a flashing light. The permanent magnet, the sheave, the coil unit, and the rings constitute cooperatively a wind generator.
REFERENCES:
patent: 3974369 (1976-08-01), Chmela et al.
patent: 4309741 (1982-01-01), Smith
patent: 6386731 (2002-05-01), Cheng
patent: 6398381 (2002-06-01), Tseng
DelGizzi Ronald E.
Ladas & Parry
O'Shea Sandra
LandOfFree
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