E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
E02D 31/02 (2006.01) E02B 11/00 (2006.01) E02B 13/00 (2006.01) E02D 3/10 (2006.01)
Patent
CA 2252286
A first molded polymer field drain panel is made from a moldable polymer sheet material and has an elongated chamber with an arched-shape, a first end, a second end and transverse strengthening ribs protruding outwardly therebetween. The elongated chamber has a smaller transverse strengthening end rib, a transverse strengthening end rib and a smaller transverse strengthening intermediate rib. The smaller transverse strengthening end rib is molded at the first end shaped for being embracingly overlapped by a corresponding transverse strengthening end rib of a corresponding elongated chamber of a second molded polymer field drain panel. The transverse strengthening end rib is molded at the second end for overlapping a corresponding smaller transverse strengthening end rib of the corresponding elongated chamber of the second molded polymer field drain panel. The smaller transverse strengthening intermediate rib is molded between the first end and the second end of the first molded polymer field drain panel for being embracingly overlapped by the corresponding transverse strengthening end rib of the corresponding elongated chamber of the second molded polymer field drain panel upon severing removal of at least the transverse strengthening end rib that is molded at the second end of the first molded polymer field drain panel.
Borden Ladner Gervais Llp
Ditullio Robert J.
LandOfFree
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