Patent ID: 8858309

Claim:
A louver for directing airflow in a refrigerated display case, the louver comprising: a plurality of fins positioned to create a plurality of channels therebetween through which the airflow is directed substantially in a first direction, each fin being elongated in a second direction substantially orthogonal to the first direction to define a length, each fin having an inlet end and an outlet end in a cross-section taken along the length; at least two wall sections extending perpendicular to, attached to, and supporting the fins so as to define the plurality of channels in combination with the plurality of fins, the at least two wall sections having first edges upstream of the inlet ends of the fins; and an inlet profile defined by the inlet ends of the plurality of fins, the inlet profile having a width perpendicular to the second direction and being non-linear across its width and whereby the distance of the inlet end of each of the fins relative to the first edges of the wall sections decreases proportionally wherein the louver further comprising a linear air outlet profile defined by the outlet ends of every other fin in the plurality of fins, and wherein the fins between the every other fin have a width such that their outlet ends do not reach the linear outlet profile.