(under the class definition) Inductor devices comprising a structure having a closed core which is partially or completely interrupted at one or more points by nonmagnetic separators or air gaps.
(1) Note. If the purpose of the nonmagnetic separator or gap is for the purpose of causing a leakage reactance which is usually a function of the load current of the device, the patent is not classified herein but rather in subclasses 155+.
SEE OR SEARCH CLASS
310, Electrical Generator or Motor Structure,
192, for electric generator or motor winding and core structure having nonmagnetic inserts or air gaps.