Patent ID: 7793759

Claim:
A ladder locking device, comprising: a frame having an elongated first terminal frame member, an elongated second terminal frame member spaced-apart from said first terminal frame member and plurality of intersecting frame segments pivotally connected to said first terminal frame member and said second terminal frame member and each other in a scissors jack configuration; a pair of spaced-apart lock flanges receiving a respective rung of a ladder carried by each of said first terminal frame member and said second terminal frame member; and a pair of lock flange openings extending through said pair of lock flanges, respectively, and a padlock extending through said pair of lock flange openings; and a foldable blind carried by said first terminal frame member and said second terminal frame member of said frame further comprising a plurality of frame flanges carried only at each end of said first terminal frame member and said second terminal frame member, wherein each frame flange comprises a pair of spaced-apart flanges and wherein said plurality of intersecting frame segments is pivotally attached to the first and second terminal frame members only by said plurality of frame flanges, a plurality of frame slots provided in said plurality of intersecting frame segments, respectively, and a slide pin extending through said frame slots of adjacent ones of said plurality of intersecting frame segments.