Patent ID: 8776439

Claim:
A modular door system for a refrigerated case, the refrigerated case having a first set of coupling features of a first configuration for receiving the modular door system in a right hand orientation, and a second set of coupling features of a second configuration, different from the first configuration, for receiving the modular door system in a left hand orientation, comprising: a stepped glass unit; a frame extending about a perimeter of the glass unit, the frame including a first horizontal frame element generally opposite a second horizontal frame element, and a first vertical frame element generally opposite a second vertical frame element, the first vertical frame element being configured to pivot about a pivot axis so that the second vertical frame element is movable between an open position and a closed position; a first receptacle disposed in the first horizontal frame element and a second receptacle disposed in the second horizontal frame element, the receptacles substantially aligned with the pivot axis; and a first set of cartridges removably receivable in the first receptacle and the second receptacle and configured to engage the first set of coupling features in the right hand orientation; a second set of cartridges removably receivable in the first receptacle and the second receptacle and configured to engage the second set of coupling features in the left hand orientation; wherein the frame may be converted between the right-handed orientation and the left-handed orientation by rotating the frame 180 degrees and interchanging the first set of cartridges and the second set of cartridges.