(under the class definition) Devices wherein torque is transmitted or absorbed between two relatively movable members having a medium there between and wherein the frictional characteristics of the medium are (1) augmented by, or (2) altered in response to a change in, a magnetic or an electrostatic field set up between the two members.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84.1+, for other types of electrically actuated clutches.
SEE OR SEARCH CLASS
310, Electrical Generator or Motor Structure,
92+, for electrodynamic torque transmitting clutches or brakes.
