E - Fixed Constructions – 03 – F
Patent
E - Fixed Constructions
03
F
E03F 7/06 (2006.01) A01K 79/02 (2006.01) A01M 29/00 (2006.01) E03B 1/00 (2006.01) F16L 55/00 (2006.01)
Patent
CA 2192636
A deterrent system is provided for repelling selected species of aquatic animals from an underwater deterrence zone, for example, from the opening of a municipal or industrial water intake. A conduit for fluid, generally water, has an outlet at the deterrence zone. Intermittent flow means cause one-way fluid flow through the conduit, visiting at the outlet as pulses of fluid alternating with periods of insubstantial fluid flow. The pulses have a volume and flow rate sufficiently in excess of the insubstantial fluid flow to repel the selected aquatic animals from the deterrence zone. The conduit outlet does not serve also as a substantial fluid inlet to the conduit and, rather, the system provides substantial net positive outflow from the conduit outlet over one or more full cycles of the aforesaid pulsed fluid flows alternating with periods of insubstantial fluid flow. Volumetric displacement of water from the deterrence zone can be accomplished without generating a current through the use of an optional inflatable boot or bladder to capture the fluid pulses from the outlet for subsequent recirculation or remote discharge.
Brown Neal A.
Haberland Michael W.
Hecker George E.
Stacy Philip
Brown Neal A.
Haberland Michael W.
Hecker George E.
Smart & Biggar
Stacy Philip
LandOfFree
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