US PATENT SUBCLASS 305 / 114
.~.~ With particular shoe, lug, grouser structure, or material

Current as of: June, 1999
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305 /   HD   WHEEL SUBSTITUTES FOR LAND VEHICLES

100  DF  WITH MEANS TO REMOVE OR EXCLUDE FOREIGN MATTER (E.G., SEAL, SCRAPER) {8}
111  DF  .~ With self-cleaning tread or track unit {3}
114.~.~ With particular shoe, lug, grouser structure, or material

DEFINITION

Classification: 305/114

With particular shoe, lug, grouser structure, or material:

(under subclass 111) Apparatus wherein the surfaces of a metal socket or plate or a projection or ridge are formed to extend angularly with respect to the socket or ridge axis and with respect to each other, thereby squeezing or extruding mud or dirt from between the operating parts.

(1) Note. The significance is attributed to the configuration of the shoe, lug, or grouser, which facilitates cleaning or prevents collection of mud, snow, or debris.

SEE OR SEARCH THIS CLASS, SUBCLASS:

48+, for a projecting truss type sag prevention means.

53, for a one-piece track tread.

185, for a track or tread structure in general.

SEE OR SEARCH CLASS

152, Resilient Tires and Wheels, 185.1, for an antiskid external track for a single wheel. [figure] [caption]A - Male part of shoe or lug; B - Pin hole; C - Locking part; D - Inclined face; E - Boss; F - Flat face;

G - Bridging part; H - Convex face; J - Inclined face; K - Flat face