US PATENT SUBCLASS 305 / 134
.~.~.~ Including walking beam or pivoting arm

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

124  DF  WITH TRACK SUPPORT INTERMEDIATE OF END WHEELS {4}
129  DF  .~ With roller support contacting lower track run {9}
132  DF  .~.~ With roller support mounted for movement individually or in pairs {2}
134.~.~.~ Including walking beam or pivoting arm

DEFINITION

Classification: 305/134

Including walking beam or pivoting arm:

(under subclass 132) Apparatus wherein the track suspension mechanism includes an elongate rocking first member or members rotatably mounted at one end on a support means, and a second swingable member or members aligned with the first member or members and with the lower track of the vehicle to maintain the track in constant contact with the ground surface.

SEE OR SEARCH CLASS

280, Land Vehicles,

677+, for a tandem axle equalized frame with a walking beam.

474, Endless Belt Power Transmission Systems or Components,

134, for plural guide rolls engaging a single endless track; subclass 135 for a guide roll spring biased in the belt-tensioning direction. [figure] [caption]A - Endless

track; B - Carrier axle; C - Trunion (pivot connection); D - Main walking beam; E - Trunion (pivot connection); F - Walking beams (secondary); G - Track rollers; H - Bearings