Patent ID: 7686484

Claim:
An indoor ceiling-mounted troffer-type light fixture comprising: an indoor ceiling-mounted body having a rectangular cover-engaging perimeter and including (a) along one perimeter edge a first flange having at least one hook-receiving opening therein and (b) along the opposite perimeter edge a second flange having at least one suspension-member-receiving opening; a cover including (a) a rectangular frame having edges, (b) at least one catch arm with a proximal end rotatably engaged to a first edge of the frame and a distal end having a catch-aim hook, each hook removably inserted in a corresponding one of the hook-receiving opening(s), and (c) at least one suspension member mounted to an opposite edge of the frame, each suspension member removably inserted in a corresponding one of the suspension-member-receiving opening(s), the catch arm(s) and suspension member(s) each having sufficient length to suspend the cover away from the body along its entire cover-engaging perimeter when they are hangingly engaged with the flanges, each hook and suspension member being fully disengageable from the body to allow the cover to be lifted from the body; and frame fasteners along all edges of the frame for engaging the perimeter in a fixture-closed position and for sealing the fixture from contaminants; whereby one-person servicing is facilitated by the cover being selectively (a) completely removed from the body, (b) supported only along one perimeter edge in a fully-open position, (c) supported along two opposite edges in a below-the-body suspended position, and (d) fully engaged with the body in the fixture-closed position.