US PATENT SUBCLASS 305 / 143
WITH MEANS FOR TENSIONING TRACK BY MOVING AT LEAST ONE ENDWHEEL

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


305 /   HD   WHEEL SUBSTITUTES FOR LAND VEHICLES

143WITH MEANS FOR TENSIONING TRACK BY MOVING AT LEAST ONE ENDWHEEL {7}
144  DF  .~> Condition responsive (e.g., inclination, speed, operator command)
145  DF  .~> Having hydraulic adjusting means {3}
150  DF  .~> Vertically movable endwheel
151  DF  .~> Biased by spring only {1}
153  DF  .~> Longitudinally adjustable {1}
155  DF  .~> With intermediate support member (e.g., linkage)
156  DF  .~> Tensioner contained within idler wheel

DEFINITION

Classification: 305/143

WITH MEANS FOR TENSIONING TRACK BY MOVING AT LEAST ONE END WHEEL:

(under the class definition) Apparatus including a flexible endless band or belt trained about a pair of longitudinally spaced distal wheels being adjustable either in a vertical or longitudinal direction with relation to the other wheel to prevent overtightening or slackening of the band or belt.

SEE OR SEARCH THIS CLASS, SUBCLASS:

120+, for a frame carried endless track.

125, for an end wheel support to maintain track tension.

SEE OR SEARCH CLASS

180, Motor Vehicles,

9.5+, for an endless flexible track having an adjustable track support mounted for a vertical movement.

280, Land Vehicles, 28.5, for a wheel substitute for land vehicles.

474, Endless Belt Power Transmission Systems or Components,

101+, for a tensioning means for power transmission belts; subclass 901 for a cross-reference art collection of patents on pulleys or guide rolls for the track of an endless track vehicle.