(under subclass 296) Subject matter including a plurality of helical or wound distinct resistance elements together with the necessary supporting structure to establish a fixed physical relationship between the elements as opposed to a mere electrical connection.
(1) Note. Two distinct windings electrically connected and on a common core are classifiable in this subclass. However, a mere plurality of electrically connected layers, one layer being wound on the layer beneath; or two electrically connected windings whose wires parallel one another; or a bifilar winding are not sufficient to constitute plural windings for classification in this subclass. See subclass 296 and other indented subclasses thereunder for this subject matter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
62, for plural resistance helices or windings related to reduce or eliminate any inductance existing in the helices or windings.
68+, for mechanically variable resistors which may include a plurality of helical or wound resistance elements.
208+, for mesh, woven, or braided resistors. 218, for wire wound tapered resistors.
261, for plural embedded, incased, or housed helical or wound resistors.
295, for plural resistors connected by a jumper.
298, for compound helical or wound resistors.
319, and 320, for plural resistors generally with a mounting or supporting means. See also the Search Notes under subclass 315 for a field of search for resistors with mounting or supporting means.
SEE OR SEARCH CLASS
242, Winding, Tensioning, or Guiding,
430+, for a process or apparatus for forming an article by winding material onto a core; particularly subclasses 439.5+, 440.1, 444+, and 445.1 for applying plural windings upon a core sequentially or simultaneously (e.g., to make a resistance element).
336, Inductor Devices, especially
65+, 115+, 170+, and 180+ for plural inductor coils.
