US PATENT SUBCLASS 219 / 250
.~.~.~ With power supply, voltage or current-control means

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

200  DF  HEATING DEVICES {14}
243  DF  .~ Combined with pressure application means {2}
245  DF  .~.~ Sole plate-type pressure application means (e.g., flatiron) {8}
250.~.~.~ With power supply, voltage or current-control means {1}
251  DF  .~.~.~.~> Thermally responsive {2}

DEFINITION

Classification: 219/250

(under subclass 245) Subject matter including detailed means either self-contained or external of the sole plate pressure application means whereby power is supplied to the electrical heating unit of the iron, means to effect voltage or current control, or current regulation means responsive to conditions within or externally of the iron.

SEE OR SEARCH THIS CLASS, SUBCLASS:

222+, for power supplies and voltage or current control or regulation means which are utilized with hair treating or heating instruments or systems utilizing such instruments.

240, for significant power supply voltage or current control or connections and/or disconnection means for hand manipulative tools or instruments.

482+, for power supplies, voltage or current regulation or control means which include manual or automatic control for heating devices combined with enclosure, container or support.

507+, for significant current connection and disconnection means combined with electrical heating devices in general.

SEE OR SEARCH CLASS 200, Electricity: Circuit Makers and Breakers,

51+, for the combination of a Class 439 connector with a switch integrally formed, subclass 61.85 for switches associated with manipulating, operating or carrying handles, and subclasses 144+ for arc preventing and extinguishing means for circuit makers and breakers.

307, Electrical Transmission or Interconnection Systems,

112+, for switching systems not claimed with any particular art device and subclasses 149+ for miscellaneous systems including power packs and conversion systems.

320, Electricity: Battery or Capacitor Charging or Discharging appropriate subclass for a method or apparatus to charge a battery used in a portable power system.

323, Electricity: Power Supply or Regulation Systems, appropriate subclasses for current or voltage regulation systems including impedance systems when the regulation or control is not claimed with a specific art device.

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

530+, for miscellaneous circuits with specific source of supply or bias voltage.

361, Electricity: Electrical Systems and Devices,

139+, for control circuits for relays and electromagnets when they are not claimed with any particular art device.

363, Electric Power Conversion Systems, for systems involving the conversion of direct current to alternating current and/or alternating current to direct current.