Resources Contact Us Home
Solar powered lighting system

Image Number 4 for United States Patent #4384317.

A solar powered lighting system including a light emitting unit electrically connected to a rechargeable power storage unit, a solar powered recharger connected to that power storage unit, means to prevent discharge of that power storage unit through the solar powered recharger, means to prevent overcharging of the power storage unit, means to prevent discharging the power storage unit below a predetermined level and means to automatically connect the disconnect the light emitting unit from the power storage unit wherein the voltage output of the solar powered recharger and the power storage unit is matched to the voltage required by the light emitting unit.

  Recently Added Patents
Continuous geospatial tracking system and method
Query optimization with awareness of limited resource usage
Relative pose estimation of non-overlapping cameras using the motion of subjects in the camera fields of view
Synthesizing VHDL multiple wait FSMS into RT level FSMS by preprocessing
Image recording device, image recording method, and computer program product that adds a fluorescent-whitening-agent onto a recording sheet
Sample analysis and/or sample processing system
Atomic oscillator and manufacturing method
  Randomly Featured Patents
Method of fabricating a buried contact
Battery connector
Medical uses of halogen substituted diphenylsulfides
Cleaning mitt apparatus
Glass coating method and resulting article
Hydrogen-absorbing alloy electrode and manufacturing method therefor
Pressure regulating valve for common rail fuel injection systems
Holding device for a tapered shaft and method of holding a tapered shaft
High performance/low cost access hazard detection in pipelined cache controller using comparators with a width shorter than and independent of total width of memory address
Shot direction indicating device