Patent ID: 7628687

Claim:
A cover assembly for an aperture in a wall, the assembly comprising: a monolithic first support and a monolithic second support provided on the wall, each support including a monolithic receptacle; a first pin-portion and a second pin-portion wholly supported and rotatably mounted in the receptacles, respectively, to define respective pivot-hinge arrangements; a cover coupled to the first and second pin-portions; a central-segment-shaft disposed between the first pin-portion and the second pin portion, the central segment-shaft being connected to the cover; a length of the first pin-portion is smaller than a length of the second pin-portion; and the first support has a cut-out portion provided in the receptacle in a circumferential direction of the receptacle; wherein the first pin-portion is assembled to the first monolithic support in a radial direction of the first pin-portion.