US PATENT SUBCLASS 338 / 175-- .~.~.~.~.~ Ring, a shaft-bearing

US PATENT SUBCLASS 338 / 175
.~.~.~.~.~ Ring, a shaft-bearing

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

68	DF	MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
118	DF	.~ Movable contact electrically adjustable over length of resistance element {21}
160	DF	.~.~ Contact slides along in contact with element {3}
162	DF	.~.~.~ Contact angularly slidable {11}
174	DF	.~.~.~.~ With collector ring {1}
175		.~.~.~.~.~ Ring, a shaft-bearing

DEFINITION

Classification: 338/175

(under subclass 174) Subject matter wherein the ring constitutes a bearing which directly engages the shaft, the shaft being of conductive material.

(1) Note. The ring may be a cylindrical bearing surrounding the shaft and engaging the cylindrical surface of the shaft, or may be a thrust bearing engaging a groove or flange on the shaft to prevent axial movement of the shaft. The ring for classification here must directly engage the conducting shaft, and not merely connect with some other structure movable with the shaft.