Patent ID: 8443938
Filing Date: 2013-05-21
Classification: A01M,E06C,Y10T

Abstract:
1. A collapsible ladder for supporting an elevated hunting platform, the collapsible ladder comprising: a plurality of telescopically engaging collapsible ladder segments each comprising a first ladder rail, a second ladder rail, and a plurality of rung members pivotally attached to each of the first and second ladder rails in a parallelogram linkage, such that a separation between the first and second ladder rails is adjustable between a collapsed position to an expanded position; and at least one rigid ladder segment comprising a stabilizing member including at least one rung member rigidly attached to a pair of rail sections attached to at least one of the collapsible ladder segments, the pair of rail sections on the at least one rigid ladder segment are telescopically attached to, and co-linear with, the first and second ladder rails on the collapsible ladder segment to maintain the first and second ladder rails in the expanded position.