Patent ID: 7258607

Claim:
An air grille assembly, comprising: a. an air grille housing adapted to be installed into a structure, the structure establishing a first face and an opening formed at least partially therethrough and the structure opening having a perimeter, the air grille housing comprising: i. a material forming an outer perimeter of the housing and establishing a housing opening sized smaller than the opening perimeter of the structure and adapted to be at least partially inserted therethrough; ii. a first flange coupled to at least a portion of the housing outer perimeter and sized larger than the opening perimeter to restrict insertion through the opening; iii. a second flange coupled to at least a portion of the housing distal from the first flange, the second flange sized smaller than the opening perimeter to allow insertion therethrough; iv. a first ridge coupled to the housing outer perimeter and extending inward a first length from the housing outer perimeter toward a center portion of the housing opening; and v. a second ridge coupled to the housing outer perimeter in a direction opposite from the first ridge in the housing opening and extending inward a second length from the housing outer perimeter toward the center portion of the housing opening, the second length being shorter than the first length; b. an air grille adapted to be at least partially inserted into the air grille housing, comprising: i. a frame, comprising: a) an insert portion having an outer perimeter sized smaller than the housing opening and adapted to be inserted at least partially therethrough, the insert portion sized to have an insert portion clearance between the insert portion outer perimeter and an adjacent portion of the housing when the frame is coupled with the housing, the insert portion comprising: i) a first groove formed in a first surface of the insert portion outer perimeter and having a first depth relative to the first surface, the first groove adapted to engage the first ridge coupled to the housing, the first depth establishing a first groove clearance between the first groove and the first ridge of the housing when the frame is coupled with the housing; and ii) a second groove formed in a second surface distal from the first surface of the insert portion outer perimeter and having a second depth relative to the second surface, the second groove adapted to engage the second ridge coupled to the housing, the second depth establishing a latching dimension for the frame to the housing when coupled with the housing and sized smaller than the insert portion clearance and the first groove clearance; and b) a frame portion coupled to the insert portion and having an outer perimeter sized larger than the housing opening; and ii. at least one louver coupled to the frame and adapted to allow air flow between the louver and the frame through the housing opening.