Patent ID: 9574399
Date: 2017-02-21
CPC Classifications: B60P,E06C

Claim:
1. A maintenance cart comprising: a lower structure comprising an upper portion and a plurality of sides that extend between the upper portion and a floor; an upper structure disposed above the upper portion of the lower structure, the upper structure comprising a structural member at each corner of the upper structure, wherein the upper structure receives an adjustable height ladder and structurally supports the adjustable height ladder and wherein the structural members connect the upper structure to the upper portion of the lower structure and move the upper structure relative to the lower structure between a stowed position and a raised position; and a single upper structure adjustment mechanism that moves all of the structural members simultaneously such that the upper structure remains level during movement of the upper structure, wherein the maintenance cart comprises an interior workspace defined by the lower structure and the upper structure (i) when the upper structure is in the stowed position and (ii) when the upper structure is in the raised position.