Patent ID: 8074767
Filing Date: 2011-12-13
Classification: B66F,E06C

Abstract:
1. A ladder that is extensible, vehicle mounted and used to aid in raising and lowering in rescue operations, the ladder comprising: a rotatable base configured to define storage space within; a plurality of ladder units comprising at least a first ladder unit and a second ladder unit, configured to be nested together, the plurality of ladder units comprising a first ladder unit attached to the rotatable base and a second ladder unit nested within the first ladder unit, each ladder unit in the plurality of ladder units comprising four C-rails such that when the second ladder unit is nested within the first ladder unit, one of the four C-rails of the first ladder unit contains one of the C-rails for the second ladder unit; and, rungs, each rung comprising two ends, each end attached to rung mounts, each of the rung mounts slidably and directly engaging one of the C-rails of the first ladder unit and one of the C-rails of the second ladder unit when the first ladder unit and the second ladder unit are nested together; and, a drive cable connecting the rungs in a closed loop and powered to: