US PATENT SUBCLASS 338 / 116
.~ With electromagnetic operator (e.g., electric motor)


Current as of: June, 1999
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338 /   HD   ELECTRICAL RESISTORS

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
116.~ With electromagnetic operator (e.g., electric motor)


DEFINITION

Classification: 338/116

(under subclass 68) Subject matter including an electromechanical transducer such as a electric motor or a

magnetic relay, the moving part such as the armature of the transducer being mechanically linked with a mechanically moving operating part of the resistor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12+, for a resistor actuated by a movable magnet through a housing or partition.

32, for a resistor whose resistance value is responsive to a magnetic field.

36+, for resistors which are fluid or gas pressure actuated, and including variable resistors operated by fluid motors.

98, for a mechanically variable resistor with a motion dampening means such as a dashpot. 103+, for a pile type compressible resistor with an electromagnetic operator; and subclass 107 for such resistors with an electromagnetic holder.

189, for a mechanically variable resistor of the tap type including a magnetic holder.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure, appropriate subclasses, for electric motor structure.

318, Electricity: Motive Power Systems, appropriate subclasses, for motor control systems including variable resistors.

334, Tuners,

17+, for tuner units with an electromagnetic operator.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

209+, for magnets and electromagnets.