Extruded section for swimming pool rollable cover

Claim 1

In a swimming pool cover consisting of a plurality of longitudinally extending compartmented, interconnected and articulated sections, the combination comprising: at least two sections, each including upper and lower major faces interconnected by longitudinal side walls and further including at least one longitudinally extending compartment defining openings at each end of said section; connecting means extending outwardly along each side wall, each of complementary configuration with respect to the connecting means on an adjacent section and configured to permit articulation of each section within a predetermined range with respect to the next section of said plurality of interconnected sections when interconnected; one of said connecting means on each section being of substantially hollow circular cross-section open at each end and defining a male element, the other of said connecting means on each section being of discontinuous arcuate cross-section and defining a female receptacle dimensioned to partially encircle said male element when said male and female connecting means are interconnected, and an end plug for each end of each section, said plug having a base plate, and including means defining a projection mounted thereon configured to enter and seal the open circular end of said male connecting means on the adjacent section and preclude relative longitudinal displacement of a pair of interconnected male and female elements while permitting relative articulation within said predetermined range, said end plug further including at least one additional projection configured to enter and seal the open end of said compartment.