Patent ID: 6994622

Claim:
A vent comprising: a substantially hollow cover member having a cover member surface which defines a vent passageway, the cover member surface comprising a protrusion which projects into the vent passageway; and a screen comprising: a plurality of screen apertures; a first bend for receiving the protrusion; a first surface which extends from the first bend along a first side of the protrusion and a second surface which extends from the first bend along a second side of the protrusion for gripping the protrusion between the first and second sides; a third surface which extends from the second surface across the vent passageway to a first portion of the cover member surface on an opposing side of the vent passageway from the protrusion; and a fourth surface which extends from the third surface along the first portion of the cover member surface, wherein the first portion of the cover member surface comprises one or more projections which extend from the first portion of the cover member surface and project through one or more screen apertures in the fourth surface.