Housing for an airfield inset runway light

Claim 1

A housing for an airfield inset runway light, said housing comprising a cover-like upper part and a bowl-like lower part, both being of circular cross-sectional shape in horizontal section, said housing parts being connectable to one another be means of a plurality of screws and corresponding clamping members, said screws extending through holes in said upper housing part near the periphery thereof and supporting the clamping members at the lower ends of the screws, a compartment being provided along the periphery of said upper housing part for each said clamping member, each compartment being defined by an upper horizontal abutment surface and two vertical abutment walls extending perpendicular to each other, each said compartment being dimensioned so as to accommodate the corresponding clamping member totally inside the periphery of said upper housing part in one position of said clamping member, wherein said clamping member abuts one of said vertical abutment walls and to accommodate one end only of said clamping member in another position of said clamping member, wherein said clamping member abuts the other of said vertical abutment walls, and the other end of said clamping member extends radially outwardly form the corresponding compartment; said lower housing part comprising a circular flange extending along the inner wall of said lower housing part, the lower surface of said flange being arranged at the same level as said upper horizontal abutment surfaces of said compartments in the mounted position of said upper housing part with respect to said lower housing part, said flange moreover being spaced from each said upper horizontal abutment surfaces in said mounted position a distance which is less than the length of said clamping members, each of said clamping members being rotatable from said first position to said other position and vice versa by means of the corresponding screw.