Doorless, positive-spreading trawling apparatus

Fishing – trapping – and vermin destroying – Fishing – Nets

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A01K 7302

Patent

active

046973729

ABSTRACT:
The doorless trawling apparatus provides for positive spreading of the opening of a trawling net by means of a plurality of toggle spreading bars which spread the net by a combination of towing force and water resistance. The net may be collapsed for hauling in or avoiding obstructions by a positively activated collapse mechanism or a safety release. The trawling depth is controlled by a variable buoyancy float system.

REFERENCES:
patent: 1913425 (1933-06-01), Black
patent: 2300178 (1942-10-01), Ross
patent: 2513153 (1950-06-01), D'Intino
patent: 3132437 (1964-05-01), Luketa
patent: 3299559 (1967-01-01), Luketa
patent: 3316670 (1967-05-01), Johnson
patent: 3366969 (1968-01-01), Luketa
patent: 4224755 (1980-09-01), Bourret
Buls, "The MT 250 Net Sounder . . .", National Fisherman, Apr. 1985, p. 38.
Matsen, "The New Supervees!", National Fisherman, Aug. 1985, pp. 27-28.
Amos "Duncan Amos Opens a World of Doors", National Fisherman, Aug. 1985, pp. 24-26.
Holman, "`Autotrawl` Gear . . . ", National Fisherman, Aug. 1985, pp. 40-41.

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