Photo-sensitive illuminated skate wheel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 16, 2001
Grant Date -
N/A
app pub date -
Jul 2, 1999
filing date -
Jul 2, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosed safety light (15) is designed to provide automatic operation for safety lights placed on rotating assemblies such as wheels, flying disks, and etc. Safety light (15) comprises a battery (20), acceleration/motion sensor (22), photo sensor (24), and illumination device (26) placed substantially in series with one other. Battery(20) provides electromotive power to operate all circuitry. The acceleration/motion sensor(22) is designed to conduct current when a specific acceleration or motion is detected. The photo sensor (24) conducts current when photo detector(25) detects a sufficiently low level of light. When both acceleration sensor(22) and photo sensor(24) are conducting, current will flow and illuminate illumination device(26). Alternatively, a time delay may be added to the acceleration/motion sensor(22) to delay shut-off of current to the illumination device(26), and a time delay may be added to the photo sensor(24) to delay turn-on of current to illumination device(26) when light level is suddenly reduced.
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