US PATENT SUBCLASS 123 / 339.26
.~.~.~.~ Stepping motor type


Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

319  DF  ENGINE SPEED REGULATOR {16}
339.1  DF  .~ Idle speed control {5}
339.14  DF  .~.~ Electrically operated control means {6}
339.25  DF  .~.~.~ Including rotary actuator {1}
339.26.~.~.~.~ Stepping motor type


DEFINITION

Classification: 123/339.26

Stepping motor type:

(under subclass 339.25) Subject matter comprising (a) a device which converts electrical energy into mechanical energy which tends to assume a predetermined angular position in response to being continuously energized, and indexes in discreet angular increments of essentially uniform magnitude as a function of electrical pulse inputs, and (b) wherein the member which is turned about its axis is driven by the device.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure, appropriate subclasses, especially

49+, for a specific rotary step-by-step motor of general utility, per se.