.~ Movable contact electrically adjustable over length of resistance element {21}
184
.~.~ With housing
DEFINITION
Classification: 338/184
(under subclass 118) Subject matter including a casing or housing which substantially encloses the resistance element and movable contact elements, leaving only the necessary operating means by which the contact element is moved exposed or extending outside of the housing to permit external adjustment of the resistor.
(1) Note. Subject matter generally found in this subclass consists of a variable resistor of the type defined in subclass 118 above having the resistance and movable contact element both completely enclosed within a box like casing or housing, with only some operating means such as a shaft or lever extending externally through an opening or slit to permit external adjustment of the resistance value without removal of the casing or housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
19, for photoconductive resistors with a transparent housing.
70+, for mechanically variable resistors housed in or on a lamp socket.
77, for plug box type resistors.
80+, for liquid element resistors. 192+, for tap type resistors whose resistance element is incased.
199, for variable resistors generally having a housing or casing.
226+, for incased, embedded, or housed resistors generally. See also the Search Notes under this subclass for a more extensive field of search for incased or housed resistors.
