Patent ID: 7089753

Claim:
A cooling member for a mobile ice rink, comprising: two cooling elements ( 41 , 42 ), each of said cooling elements having a feed manifold ( 43 , 45 ) and a discharge manifold ( 44 , 46 ) and plural longitudinal pipes ( 50 , 51 ) extending transverse to said feed and discharge manifolds; said plural longitudinal pipes having first ends ( 53 , 54 ) connected to respective ones of said feed and discharge manifolds, respective pairs of said longitudinal pipes having second ends ( 60 , 61 ) that are in fluid communication with each other through a connector ( 27 , 63 ) so that a fluid path is formed from said feed manifold to said discharge manifold through said pairs of said longitudinal pipes that are connected by respective ones of said connector; each of said plural longitudinal pipes comprising at least two rigid pipe sections ( 3 , 12 , 16 , 24 , 68 , 69 ) that are connected to each other with a joint ( 4 , 13 , 17 , 25 , 70 , 132 , 133 ) that is fluid-tight both in an operational position with said at least two rigid pipe sections longitudinally aligned with each other and in a transport position with said at least two rigid pipe sections out of longitudinal alignment with each other at said joint, said at least two rigid pipe sections being foldably movable between said operational and transport positions; and fluid-tight coupling members ( 47 , 48 ) that, in the operational position, join said feed manifold of one of said cooling elements to said feed manifold of another of said cooling elements and that join said discharge manifold of one of said cooling elements to said discharge manifold of another of said cooling elements.