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US 12,433,269 B2Granted
Gate mechanism for a trawl net
AssigneeFisheries Innovation & Sustainability
InventorsPaul G. Fernandes, Vivek Chacko, Richard David Neilson, Ahmed Elsayed Nassar
Life of this patent
Estimating the term…
Abstract
A gate mechanism (20) is adapted for mounting within the extension (4) of a trawl net (1), the gate mechanism comprising a turbine (47/147/247) for powering rotation of the gate mechanism as it is dragged through the water within the trawl net.
Claims20
A gate mechanism adapted for mounting within the extension of a trawl net, for selectively preventing animals or marine life including fish or other species from entering the cod end of the trawl net based upon selected criteria such as species or size, the gate mechanism comprising
- a housing and
- a barrier mounted within the housing,
- the barrier having open and closed sections,
- a rotatable door mounted within the housing,
- the door having open and closed sections which selectively overlie the open and closed sections of the barrier, and
- a turbine for facilitating rotation of the door as the gate mechanism is dragged through the water within the trawl net.
3 more elements
Dependencies are inferred from the claim text.