Patent ID: 7780509

Claim:
A vent for installation into a wall having an exterior face, an interior face with said interior face being parallel to said exterior face, and a wall opening surface with a perimeter dimension, the vent comprising: (a) a frame for engaging the exterior face of the wall around the wall opening; (b) said frame having a front surface, a back surface, and at least one vent opening; (c) said frame further having a continuous peripheral skirt with a proximal perimeter connected to the back surface and a distal perimeter extending from the back surface, said skirt in position to engage the wall opening surface; (d) said skirt comprising means for screening matter of a predetermined size from passing through each said vent opening, said means positioned away from said proximal perimeter; (e) at least two clips each having a proximal end, central portion, and distal end, with said proximal ends connected to opposing sides of said frame such that said central portion extends from the back surface of said frame; (f) said distal ends comprising a tab member that is a set at an angle to said central portion so that said tab members face away from each other; (g) said clips having an overall length such that when said proximal ends are connected to said frame, said tab members are in a position for engaging the interior face of said wall, said clips are set at a substantially perpendicular angle to the back surface of said frame and said proximal ends of said clips are selectably connectable to said frame by means of slots in which: a protrusion engages an indentation, each of said clips have one or more ridges that engage a corresponding space in each slot, and said clips having stops that limit the depth to which a clip may be inserted into said slots.