(under the class definition) Subject matter wherein a plurality of resistors as there defined have their elements connected at one of the respective ends, by a separate and distinct conductor, the resistance elements being close together and physically supported to form a unitary resistance structure.
(1) Note. The conductor must be of appreciable length. Two resistors whose elements are in physical contact to produce a galvanic connection therebetween are not classified here, but in subclasses 319 or 320, if supported to form a unitary structure. The connection should have a conductivity appreciably greater than the resistance element. A mere plurality of resistors connected electrically in some circuit arrangement is not classified here, but in such Classes as 323, Electricity: Power Supply or Regulation Systems, and 333, Wave Transmission Lines and Networks. The plurality of resistors should in themselves be closely arranged to form a resistive unitary structure for classification here.
(2) Note. Where three or more elongated resistance elements are arranged side by side in parallel with alternate ends connected by a conducting spacer or jumper to form a zigzag resistor classification is in subclass 289, or in subclass 288, if the zigzag so formed is one zigzag of a compound or multiple zigzag resistor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
48, for plural separate diverse resistors which may be connected by a jumper.
128+, for plural mechanically variable resistors which may be connected by a jumper.
279+, for resistors whose elements are formed as a bent ribbon. 288, for compound or multiple zigzag or sinuous shaped resistors whose elements are connected by a conductive jumper or spacer. See also (2) Note above.
289, for zigzag or sinuous shaped resistors generally whose elements are connected by a conductive jumper or spacer. See also (2) Note above.
319, 320, for plural resistors which are supported to form a unitary structure. See also (1) Note above.
SEE OR SEARCH CLASS
219, Electric Heating,
462.1, for an exposed planar support surface for material to be heated (e.g., hot plate, etc.) having plural heating elements gapped from an underside of the support surface (e.g., ceramic plate, radiation type, etc.).
323, Electricity: Power Supply or Regulation Systems,
218, and 297 for phase control and output control respectively, which include a plurality of impedances, which may be resistors, connected together. See also (1) Note above.
