Covering plate for a preset hole on a computer housing

Claim 1

A covering plate for insertion into an aperture in a computer housing, the aperture being defined by edges of a wall of the housing, the covering plate comprising: a substantially flat plate having a pair of depressions in each of oppositely disposed sides of the plate, each of said depressions including bottom and side walls lying within the plane of said flat plate; and four protruding resilient elements each having a leading end and a rear end, said ends extending from the bottom wall of respective ones of said depressions, each of said elements extending in a direction substantially perpendicular to and slightly inclined towards the side walls of the depression from which each said element extends, each of said elements being bent at a point intermediate the leading and rear ends thereof so that leading end portions of the elements extending from depressions in one of said oppositely disposed sides extend in a direction towards the other of said sides; whereby, during the insertion of said covering plate into an aperture, the element leading end portions engage edges of the aperture and are thereby inwardly moved until the point at which the elements are bent is inserted into the aperture beyond the edges thereof whereupon the elements spring outwardly to clamp edges of the covering plate between the rear ends of the elements and the depression side walls.