(under subclass 283) Subject matter wherein the zigzag or sinuous resistance element lies in or is formed as a cylindrical surface of revolution.
(1) Note. The elongated potions of the resistance element may form elements of a cylinder or be circular to lie in the cylindrical surface of revolution.
SEE OR SEARCH THIS CLASS, SUBCLASS:
162+, and 190+, for mechanically variable resistors with an angularly movable contact arm whose resistance element is formed as a cylindrical zigzag or sinusoid.
207, for a resistor whose element and base are folded or rolled.
286, for a compound or multiple zigzag resistor including a helical pattern.
287+, for compound or multiple zigzag resistors generally.
