.~ Element coiled on cylindrical or prismatic core {1}
303
.~.~ In helical groove on core
DEFINITION
Classification: 338/303
(under subclass 302) Subject matter wherein the core is provided with a helical groove in its surface, the resistance element being disposed in the groove with the convolutions of the element lying along the helical path of the groove.
SEE OR SEARCH THIS CLASS, SUBCLASS:
252, for an incased, embedded, or housed resistor whose element is embedded in a groove in the casing.
285, for a zigzag or sinuous shaped resistor whose element lies in a groove in the base.
305, for a helical or wound resistor whose element extends in or through a groove or opening in a frame or support.
311, for resistors in general whose elements are mounted in grooves in the base.
