(under subclass 40) Subject matter in which the weight of one of the elements which is moved by the magnetic force is counterbalanced at least in part by a counterbalanced weight so that the magnetic force needed to move the movable element is either less than or more than the weight of the movable element.
(1) Note. Where the inductor has a plurality of movable inductance changing elements (e.g., a movable coil and a movable core) one of the movable elements may be used as a counterbalance for the others and vice versa.
(2) Note. An illustrative example is: [figure]
SEE OR SEARCH CLASS
248, Supports, appropriate subclasses for counterbalanced movable supports of general application. Note
364, of Class 248 and also see the Index to the Manual of Classification of Patents under the titles "Weights" and "Counterweights" for counterbalance weights.
