(under subclass 74) Devices of the type where the regulating member is operated by an element reciprocated or oscillated by means of a solenoid or electric magnet whose operation is controlled by means responsive to the temperature to be regulated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84, for similar controls which constitute relays for the control of a fluid pressure motor.
SEE OR SEARCH CLASS
310, Electrical Generator or Motor Structure,
15+, for reciprocating electric motor structure, and subclasses 36+ for oscillating electric motor structure. 318, Electricity: Motive Power Systems,
119+, for reciprocating or oscillating electric motor systems.
