Patent ID: 7849961

Claim:
A ladder comprising a pair of generally parallel stiles, a plurality of rungs extending between said stiles, a first U-shaped member having first and second spaced apart side arms each having a first free end and a second end wherein said second end of said first and second arms are joined to each other by a first transverse connecting member, said first free end of said first side arm pivotally connected to one of said stiles adjacent to one of said rungs and said first free end of said second side arm pivotally connected to another of said stiles adjacent to said one of said rungs, a second U-shaped member having a third and a fourth spaced apart side arm each having a first free end and a second end wherein said second ends of said third and fourth arms are joined to each other by a second transverse connecting member, an axle extending through said second ends of said first and second side arms and through said first ends of said third and fourth side arms, a wheel at each end of said axle, and said second transverse connector having a channel connected thereto, said channel removably attachable to another of said rungs without the use of tools wherein said second transverse member may be attached to said another of said rungs for rolling said ladder across ground on said wheels, and disconnected from said one of said rungs when said wheels are not needed.