Abstract: A toy shopping trolley includes a base, a handle, a bracket and a seat, the base composed of a pair of frames and having wheels disposed on a bottom of each of the frames, the handle pivotally engaged to the pair of frames so as to be pivotally folded to be parallel to the base, the bracket having an open top and an open rear end and composed of a bottom, two sides and a front side, each of the sides having an upper edge and a hook extending from a rear end to the respective upper edge, the bracket having a bar extending laterally from a respective side of a rear end thereof, the seat composed of a first part and a second part which is pivotally engaged to a bottom of the first part, the second part having an extension portion extending longitudinally from a top thereof being received in the hole defined in each one of the two legs of the handle and the two hooks of the bracket engaged with the extension parts of the second part of the seat, the bar of the bracket contacting against the two legs of the handle

Abstract: A cart for maintaining items, which are used in a cleanroom, at a predetermined cleanliness level. The cart includes a cabinet having an internal cavity and opposed first and second internal walls. The cart further includes a shelf affixed horizontally within the cavity to form top and lower compartments within the cabinet. In addition, a lower horizontal track is affixed to the cabinet above the top compartment. A lower door is slidably affixed within the lower track. Additionally, the cart includes an upper horizontal track affixed to the cabinet above the lower track and an upper door slidably affixed within the upper track, wherein the upper and lower doors are movable in a horizontal direction above the top compartment. The top compartment is substantially isolated from contamination when the upper door contacts the first wall and the lower door contacts the second wall or when the upper door contacts the second wall and the lower door contacts the first wall.