(under the class definition) Subject matter including a charging source having means for deriving electrical energy from weather-related air flow, light energy, heat, or from an electrochemical generator in which chemical energy from the reaction of air or oxygen and a fuel (e.g., hydrocarbons, etc.) is converted directly into electricity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
138, for plural or alternate sources for charging.
139, for pulse-controlled charging.
SEE OR SEARCH CLASS
136, Batteries: Thermoelectric and Photoelectric,
291+, for applications of photoelectric.
323, Electricity: Power Supply or Regulation Systems, 906, for solar cell systems.