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US 4,200,904 AGranted
Solar powered street lighting system
OwnerDuc Doaninventor
Life of this patent
Estimating the term…
Abstract
A solar powered street lighting system that is totally independent of any external power supply. Solar panels are connected in such a manner to charge a maintenance-free storage battery with sufficient capacity to light street lights and/or traffic signals. An auxiliary generator may also be provided having a wind driven vane for also charging the battery if sufficient sun light is not available.
Claims5
A totally independent street light system comprising:
- an upright pole adapted to be mounted on a supporting surface;
- a dry storage battery;
- a plurality of solar panels coupled to said battery, each of said panels having a plurality of solar cells connected in series for providing a predetermined voltage to said battery, each of said panels connected in parallel to provide a predetermined amperage to said battery, all of said panels being mounted in a single unitary assembly on said pole;
- a street light mounted on said pole electrically coupled to said battery and actuated by said battery;
- wind driven alternator means mounted on said pole coupled to said battery for providing capacity to said battery augmenting said solar panels;
- and
- a light actuated photocell coupled to said light for selectively lighting said light dependent upon light conditions at said pole.
4 more elements
Dependencies are inferred from the claim text.