Patent ID: 8191321

Claim:
A system comprising: at least one rail body comprising a bottom flange, a first upright member extending from a first end of the bottom flange, a second upright member extending from a second end of the bottom flange, an intermediate horizontal member extending between and linking the first and second upright, the at least one rail body further comprising a first bottom mounting rail extending downwards from the bottom flange, the first bottom mounting rail having two oppositely spaced upturned ends, a second bottom mounting rail extending downwards from the bottom flange, the second bottom mounting rail having two oppositely spaced upturned ends, a bottom rail receiving slot arranged intermediate to the first and second bottom mounting rails, and the first and second upright members further including a vertical slot disposed at an intermediate position between the bottom flange and the corresponding first or second top flange; a first top flange disposed on a top end of the first upright, and a second top flange disposed on a top end of the second upright whereby a portion of the first upright, the intermediate horizontal member, and the second upright form a u-shaped channel, and wherein the intermediate horizontal member and the first upright member and second upright member cooperate to form an open-top, u-shaped channel having the intermediate horizontal member as a bottom surface for channeling a fluid, the bottom surface having a first length that is greater than a length of the first or second upright member determined from the intersection of the intermediate member to the respective first or second top flange; and wherein the intermediate horizontal member, a lower portion of the first upright member, the bottom flange, and a lower portion of the second upright member define a frame channel, the frame channel having a generally rectilinear profile when viewed end-on wherein the intermediate horizontal member defines a top wall of the frame channel and a length of the top wall is about the same as a length of a side wall of the frame channel.