Patent ID: 7681409

Claim:
A refrigerated merchandiser comprising: a first housing defining a product display region having an open-front viewing area, said first housing having a first top wall; an air curtain admission assembly operatively associated with said first housing, said air curtain admission assembly including a second housing disposed above said first top wall of said first housing, said second housing having a second top wall and a perimeter wall, an air inlet and an air outlet, said second housing defining a plenum opening to and extending between said air inlet and said air outlet; a flow baffle disposed within said plenum and above said first top wall of said first housing, said flow baffle dividing said plenum into a first flow passage and a second flow passage above said first top wall of said first housing, said second flow passage having an inlet interfacing in flow communication with an outlet of said first flow passage, said first flow passage in flow communication with the air inlet to said plenum and said second flow passage in flow communication with the air outlet of said plenum; and an air mover operatively associated with said air curtain admission assembly, the air mover operative to direct air from externally of said second housing through the air inlet to said plenum, thence through said first flow passage, thence through said second flow passage and out of the air outlet to said plenum generally across the open front viewing area of the product display region, the flow of air through said plenum substantially reversing direction when passing from said first flow passage to said second flow passage; —further comprising a second flow baffle disposed in said plenum and establishing a third flow passage in said plenum beneath a forward end of the second flow passage whereby the air flow passing through the second flow passage turns through an angle of at least 90 degrees when passing from the second flow passage into the third flow passage, the third flow passage in flow communication with the air outlet of the plenum.