.~ Element in insulation with outer metallic sheath {6}
246
.~.~ With insulation and sheath external and internal to element
DEFINITION
Classification: 338/246
(under subclass 243) Subject matter wherein the resistance element has an opening therethrough, as by having a tubular or annular shape, the insulation and sheath extending through the opening to cover the inner surface of the resistance element, as well as extending over and covering the outer surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53+, for resistors with ventilating passages.
SEE OR SEARCH CLASS
166, Wells,
61, for wells with heating resistors surrounding production tubes through which a liquid flows.
