(under subclass 300) Subject matter in which the energy is changed between the electrical and the thermal state.
(1) Note. This subclass relates, for example, to means for generating electricity due to a change in the temperature of material, or to means for generating mechanical energy due to the change of magnetic flux which results from change of temperature.
(2) Note. The combination of an electrical generator system and a nuclear reactor is provided for in Class 376, Induced Nuclear Reactions: Processes, Systems, and Elements, subclasses 317+.
SEE OR SEARCH CLASS
136, Batteries: Thermoelectric and Photoelectric,
200+, for thermocouple batteries, per se.
318, Electricity: Motive Power Systems,
117, for thermoelectric motor systems, per se.
322, Electricity: Single Generator Systems,
2, for electrical generator systems in which electricity is converted to heat which in turn is converted into electricity.
374, Thermal Measuring and Testing,
176, for a thermometer having a ferromagnetic sensor.
376, Induced Nuclear Reactions: Processes, Systems, and Elements,
317+, for electrical generator systems in which the products of an induced nuclear reaction are converted to electricity.
