US PATENT SUBCLASS 305 / 162
.~.~.~.~ Including threaded fastening means

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

157  DF  ENDLESS BELT HAVING NONMETALLIC TRACK OR TREAD {5}
159  DF  .~ Track formed of rigid nonmetallic links {3}
160  DF  .~.~ Lug, shoe, or grouser structure, per se {1}
161  DF  .~.~.~ With mounting means {1}
162.~.~.~.~ Including threaded fastening means

DEFINITION

Classification: 305/162

Including threaded fastening means:

(under subclass 161) Apparatus wherein the securing means includes a metal collar, having an internal helical ridge, to fit a cylinder core having a outer helical ridge of approximately triangular, square, or rounded section for holding the tread pad or traction cleat firmly.