US PATENT SUBCLASS 338 / 322
WITH TERMINAL

Current as of: June, 1999
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338 /   HD   ELECTRICAL RESISTORS

322WITH TERMINAL {10}
323  DF  .~> Terminal tapped on resistance element
324  DF  .~> Diverse terminals
325  DF  .~> With three or more terminals
326  DF  .~> Terminals adjacent (e.g., looped resistor)
327  DF  .~> Terminal coated on resistance element
328  DF  .~> Terminal and resistance element disposed in flat layers
329  DF  .~> Welded or soldered
330  DF  .~> Terminal and resistance element integral
331  DF  .~> Resistance element surrounds terminal
332  DF  .~> Terminal embraces or surrounds resistance element

DEFINITION

Classification: 338/322

(under the class definition) Subject matter including a resistance element and one or more terminals in physical and electrical contact with the element for connecting the resistance element in an electric circuit.

(1) Note. Since all resistors must include terminals in the sense that some structure is necessary to permit energization of the resistance element, the term "terminals" is sufficiently broad to include the free ends of the resistance element. Thus the terminal and resistance element may be integral with no sharp line of demarcation therebetween. Usually, however, the terminal is an appreciably better electrical conductor than the element. The patents in this subclass usually include those where a significant relationship exists between the resistance element and its terminals; or the combination of detailed resistance element structure and terminals not classified with any of the particular types of resistors above. The combination of a resistance element broadly together with detailed terminal structure where the terminal is for a separable connection with the associated circuit is classified in Class 439, or in Class 174, where the terminal is for a permanent connection with the associated circuit. See the reference to Class 174 under section 6 of the Class Definition of Class 439. Since all resistors as stated above include terminals, the Search Notes below are directed only to where significant terminal structure or relationship may be found.

(2) Note. The combination of a resistance element by name only together with two terminals is classified here as a residual home. As between Classes 174 and 439 and this class (338) the combination of a resistance element broadly recited and a plurality of spaced terminals is classified in this class (338). As stated in (1) Note above, the combination of a resistance element broadly recited and a single terminal is classified in Classes 174 or 439.

SEE OR SEARCH THIS CLASS, SUBCLASS:

68+, for mechanically variable resistors with terminals, especially subclasses 118+, for such resistors with a movable contact electrically adjustable over the length of the resistance element.

220, for a resistor in a detachable electrical connector. 221, for resistors of the detachable plug type which may include particular terminal structure.

229, for a resistor in a probe.

271, for incased resistors whose terminals form the casing.

273+, for incased resistors whose terminals extend into the end of the casing.

276, for incased resistors whose terminals extend through the casing wall.

307+, for a resistor whose terminals are printed or marked on the base.

309, for resistors whose terminals are coated on the base.

312, for resistors whose terminals extend in or through the base.

313, for resistors whose terminals embrace the base.

SEE OR SEARCH CLASS

174, Electricity: Conductors and Insulators, particularly

19+, 74+ and 84+, for electrical terminations of the permanent connection type which may be applied to resistance structure. See also (1) Note above. 427, Coating Processes,

58+, for coating processes, per se, wherein the product has utility as an electrical article.

428, Stock Material or Miscellaneous Articles, appropriate subclasses, for a plural layer product comprising one layer which may be a resistance element and at least one other

layer which may be considered terminals, but without other structure limiting the product to use as an electric resistor.

439, Electrical Connectors, appropriate subclasses, for terminals of the separable type which may be applied to resistance structure. See also (1) Note above.