Portable dams

E - Fixed Constructions – 02 – B

Patent

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61/25

E02B 3/10 (2006.01) E02B 7/00 (2006.01) E02B 7/08 (2006.01) E02B 7/16 (2006.01)

Patent

CA 1068913

A B S T R A C T In a dam comprising a plurality of support posts, said posts being substantially uniformly spaced with respect to one another and having a predetermined pitch spacing, a flexible web having a central body portion and upper and lower marginal edge portions, the improvement wherein said marginal edge portions are uniformly shortened along the length thereof to a length which is less than the unshortened length of the central body portion by factor of ?.

287727

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