E - Fixed Constructions – 03 – F
Patent
E - Fixed Constructions
03
F
E03F 5/02 (2006.01) E02D 29/12 (2006.01) E03F 1/00 (2006.01) E03F 7/00 (2006.01)
Patent
CA 2432620
A water sewer drainage system particularly directed to prevent spread of West Nile disease includes an underground water drain off region, a ground level opening to a down passage to the drain: off region, a sewer grate across the ground level opening and an insect block in the down passage below the sewer grate. The insect block inhibits insects from gaining access to the drain off region while permitting flow of water through the system.
Curatolo Tony
Dennison Associates
Royal Group Technologies Limited
LandOfFree
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