Patent ID: 7222695

Claim:
A ladder leveller for mounting onto at least one stile of a hollow runged ladder, the leveller comprising: an elongate stile extension member, a spaced array of apertures formed along said stile extension member, each aperture of said array extending through said stile extension member, at least one cross bar sized for mounting journalled through a hollow rung of the ladder, a cross bar mount mountable onto an end of said at least one cross bar in mating engagement with an end of the hollow rung so as to secure said at least one cross bar journalled in the hollow rung, a locking pin extending from said at least one cross bar and cross bar mount so as to extend co-axially from said at least one cross bar and through any one of said apertures in said stile extension member so that said locking pin is exposed outwardly of said stile extension member oppositely disposed relative to the ladder when said stile extension member is abutted against, so as to lie along, the corresponding stile, a locking bar releasably mounted onto said locking pin when extending through an aperture in said stile extension member, said locking pin having locking grooves for interlocking with said locking bar, wherein with said at least one cross bar mounted through a corresponding hollow rung, and with the cross bar mount mounting said at least one cross bar securely in the rung, and with the locking pin protruding outwardly of the stile, and with the stile extension member mounting along and adjacent the stile with the annular collar protruding through one of said apertures in said stile extension member so as to expose said locking grooves on said annular collar outwardly of said stile extension member, and with said locking bar mated onto said locking grooves on said annular collar, said stile extension member is releasably mounted to and along the stile so as to adjustably extend from a lower end of the stile.