US PATENT SUBCLASS 336 / 10
.~ ADJUSTABLE INDUCTOR
Current as of: June, 1999
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DEFINITION
Classification: 336/10
(under subclass 5) Subject matter wherein the inductor has means for adjusting its inductance.
(1) Note. The claims must limit the device to use in a polyphase system by including some structure or electrical connection which is not of general utility but is specifically for use in a polyphase system to be classified herein.
(2) Note. The search should extend to the appropriate
subclasses below for adjustable inductor structure which may be used with polyphase current but which is of general utility (e.g., multiple coil reactors and transformers with plural primary and secondary windings).
SEE OR SEARCH CLASS
307, Electrical Transmission or Interconnection Systems,
104, for systems having means for controlling the same under highly inductive conditions. 323, Electricity: Power Supply or Regulation Systems, appropriate subclasses, for systems in which a single source of supply is connected to a single output circuit and the system includes means for controlling only the magnitude of the current, the voltage and/or the phase angle between the current or voltage in the system. The single source of supply may be a polyphase source.
335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,
220+, for structure of polyphase induction devices without inductance varying means.
