Patent ID: 6976598

Claim:
A shelving system comprising: (a) a first upright support and a second upright support positioned in a spaced side-by-side relation; (b) a first shelf support member movably mounted with respect to said first and second upright supports, said first shelf support member being horizontally slidable and vertically translatable with respect to said first and second upright supports; (c) a second shelf support member movably mounted with respect to said first and second upright supports, said second shelf support member being vertically translatable with respect to said first and second shelf support members; (d) first shelves supported by said first shelf support member; and (e) second shelves supported by said second shelf support member; (f) first and second spring members mounted with respect to said first and second upright support members, respectively; wherein said first shelf support member is adapted to be horizontally slidable such that said first shelves move out of a vertically stacked orientation with respect to said second shelves; wherein movement of said first shelves along a vertical axis is automatically translated to an opposite movement of said second shelves along said vertical axis; and wherein said first and second spring members include at least three spring segments separated by interpositioned box elements, and wherein said spring segments include an inner spring structure and an outer sleeve element that is adapted to control the rate of air passage therethrough.