US PATENT SUBCLASS 301 / 40.1-- .~.~.~ Traction increasing

US PATENT SUBCLASS 301 / 40.1
.~.~.~ Traction increasing

Current as of: June, 1999
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301 /	HD	LAND VEHICLES: WHEELS AND AXLES

5.1	DF	WHEEL {21}
38.1	DF	.~ Emergency {2}
39.1	DF	.~.~ Tire or rim {4}
40.1		.~.~.~ Traction increasing {1}
40.2	DF	.~.~.~.~> Auxiliary tire mounted to one side of main wheel

DEFINITION

Classification: 301/40.1

Traction increasing:

(under subclass 39.1) Wheel wherein the emergency tire or rim is intended to increase the tractive effort of the wheel or to prevent slipping (or sluing) of the wheel from its intended direction of travel, and is readily removable from the ordinary wheel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.1, for a wheel with traction-increasing provision, generally.

SEE OR SEARCH CLASS

152, Resilient Tires and Wheels,

208+, for a resilient tire including means to increase the traction thereof, without details of the supporting wheel other than details adapting the device for use with a resilient tire.