Patent ID: 8348015
Filing Date: 2013-01-08
Classification: E04F,E06C

Abstract:
1. A method for accessing a room with a ladder connected to a ceiling, the ladder having a plurality of sections having a first and second sides respectively, wherein each said section is telescopically connected together and each said section respectively has a rung with a respective tube attached to each end of said rung so that the respective tubes of each said section are positioned on said first and second sides, the respective tubes align to form a channel on the first side and the second side so that each said side has an extension spring disposed within and along an entire length of each channel, the method provides a plurality of steps including: moving the ladder from a retracted position to a fully extended position so that as the ladder extends below the ceiling an increasingly active force is produced by the two extension springs to counterbalance a weight of the ladder; and retracting the ladder into the retracted position in the room above the ceiling; wherein the step of moving the ladder from the retracted to the fully extended position includes a step of pulling down a lowest section of the ladder sections until plunger assemblies in a section directly above the lowest section find corresponding holes in tubes of the lowest section causing the plunger assemblies to extend into the corresponding holes.