US Patent 7337730 Vertically adjustable shelves and refrigerator compartment housing the same

A shelf assembly includes a shelf adapter bracket defined by a U-shaped shelf bracket member in legs of which are vertically disposed opposing slideways into which open a plurality of vertically spaced slots. A shelf includes a pair of shelf support brackets each having a pin which move in the slideways and seats in the slots to effect selective vertical adjustment of an associated shelf. The shelf adapter bracket has hooks for engaging in slots of conventional refrigerator trackways. The shelf includes lateral stabilizing ribs, a lubricity block, and a stop nose which engages a stop in a bight wall of the shelf bracket member to prevent inadvertent/accidental downward shelf movement.