US PATENT SUBCLASS 305 / 136
.~.~ Specific roller structure, per se

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

124  DF  WITH TRACK SUPPORT INTERMEDIATE OF END WHEELS {4}
129  DF  .~ With roller support contacting lower track run {9}
136.~.~ Specific roller structure, per se {1}
137  DF  .~.~.~> Including structure to engage track (e.g., wear surface, cushion)

DEFINITION

Classification: 305/136

Specific roller structure, per se:

(under subclass 129) Apparatus wherein the significance is attributed to the shape or configuration of the cylindrical element.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

572+, for a flywheel or rotor structure, per se.

152, Resilient Tires and Wheels,

17+, for a spring wheel structure, per se.

295, Railway Wheels and Axles,

11+, for a wheel structure, per se. 301, Land Vehicles: Wheels and Axles,

63.1+, for a specific disc type compression wheel structure, per se.

474, Endless Belt Power Transmission Systems or Components,

177, for a friction drive pulley or guide roll; subclass 191 for a pulley or guide roll structure with a nonmetallic belt engaging surface; subclass 901 for a pulley or guide roll structure for the track of an endless track vehicle. [figure] [caption]A - Roller or resilient tire; B - Rim; C - Axle; D - Central ribs; E - Load bearing surface; F - Guide grooves