Otter board

Details Otter board Otter board

1991-11-13

1993-11-30

Rowan, Kurt C.

Fishing, trapping, and vermin destroying

Fishing

Nets

43 4313, A01K 7302

Patent

active

052653676

ABSTRACT:
Otter board which is provided with a means for adjusting net-mouth expanding force which can be driven by liftingrope thereby to freely vary said force. According to the first embodiment of the invention, said otter board is formed by biplane construction of board planemembers, and said means for adjusting the net-mouth expanding force comprises the outermost board plane member of said biplane construction that is variable in its angle of attck about a pivot provided in the biplane construction. According to the second embodiment of the invention, said means for adjusting the net-mouth expanding force comprises a through bore in a single otter board construction, said through holehaving a variable opening area by means of an oscillating member.

REFERENCES:
patent: 4894946 (1990-01-01), Fukushima

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