US PATENT SUBCLASS 338 / 77
.~ Plug boxes


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

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
77.~ Plug boxes


DEFINITION

Classification: 338/77

(under subclass 68) Subject matter including a base or panel having a single resistor or a plurality of resistors mounted thereon or in a box or housing, the panel constituting a cover therefor, together with terminals mounted on the panel and electrically connected along the length of a single resistor or to the ends of the plurality of resistors, the terminals having openings therein or providing openings; and including also terminal plugs adapted to be removably inserted in the openings to short-circuit respective resistors or portions thereof, or to connect the resistors in series or parallel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

92+, for mechanically variable resistors including means adjustably short-circuiting the resistance element.

185+, for tap type mechanically variable resistors.

200+, for a mechanically adjustable resistor combined with a switch.

215, for resistors generally combined with switches. SEE OR SEARCH CLASS

174, Electricity: Conductors and Insulators,

50+, for boxes and housings generally for electrical devices.

361, Electricity: Electrical Systems and Devices,

627+, for distribution or control panel board.