US PATENT SUBCLASS 305 / 159
.~ Track formed of rigid nonmetallic links

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

157  DF  ENDLESS BELT HAVING NONMETALLIC TRACK OR TREAD {5}
159.~ Track formed of rigid nonmetallic links {3}
160  DF  .~.~> Lug, shoe, or grouser structure, per se {1}
163  DF  .~.~> With noncylindrical or hollow connector pin
164  DF  .~.~> Including metal sleeve for connector pin

DEFINITION

Classification: 305/159

Track formed of rigid nonmetallic links:

(under subclass 157) Apparatus wherein the continuous belt is formed of inflexible components connected to each other by articulated joints presenting profiled supporting surfaces made of rubber or high strength molded plastic or similar material to permit relative movement of the components so that the belt is capable of conforming to the curvature of the pulley or sprocket drive face.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41+, for a resilient connector between treads.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven,

698+, for a load-engaging belt having load-impelling projected cross members joined by mechanical fastening means; subclasses 850+ for a carrier belt structure formed of or including pivotally interconnected rigid links.

301, Land Vehicles: Wheels and Axles,

43+, for a traction increasing projecting cleat made of a resilient material. 474, Endless Belt Power Transmission Systems or Components,

207, for a belt formed of rigid links including nonmetallic part; subclasses 232+ for a link including common member forming laterally spaced sides of opening for a pulley tooth. [figure] [caption]A - Tubular bodies; B - Underside running pad; C - End connector links; D - Chain tooth; E - Intermediate links; F - Successive chain links; G - Connecting pin rods; H - Roll-off surfaces