Drainage channel having improved coping for receiving grate

Claim 1

A drainage channel comprising: (a) a channel body adapted to be set into a surface, said channel being U-shaped in cross-section and having a concave base and integrally formed opposing first and second vertically spaced-apart side walls terminating in upper free ends; (b) crowns formed in an upper portion of each of said side walls, said crowns comprising the upper free ends of the side walls, said upper free ends being of a predetermined thickness between respective inner side wall surfaces and outer side walls surfaces and an elongate area of lesser thickness than said predetermined thickness in said outer side wall surfaces, said elongate area being spaced below the upper free ends of the first and second side walls and extending along at least part of the length of the outer surface of the channel body side walls; and (c) a coping for enclosing the crown of a respective side wall of the channel body, the coping including a downwardly facing inner leg for resting against the inner side wall surfaces of the channel, a downwardly facing outer leg for resting against the outer side wall surfaces of the channel and a member connecting upper portions of said inner and outer legs for covering the upper free end side wall surfaces of the channel body, said outer leg terminating in a free end comprising an elongate rib of enlarged dimension, said rib being adapted for being received by said elongate area of reduced thickness of said side wall whereby said coping can be anchored to said side wall by means of a snap fit onto said crown of said wall.