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US 2018/0325086 A1Published application
Trawl door with adjustment means
AssigneeMld Aps
InventorJan MUELLER
Life of this patent
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Abstract
There is provided a spreading device, such as a trawl door used for trawl fishing, and more particularly, a trawl door adapted for stable and efficient operation. The door is equipped with flaps mounted below distal panels and connected to driving units, and the flaps are adapted to be controlled remotely, when the spreading device is being towed through the water; the lower distal panel and the upper distal panel have distal surfaces rendering them hollow, wherein the flaps constitute a part of the distal surface.
Claims11
A spreading device, such as a trawl door, comprising:
- an upper frame defining a top edge of the device;
- a lower frame defining a bottom edge of the device;
- a middle frame defining an intermediate frame positioned between the upper and lower frames thereby establishing an upper and lower section;
- a lower proximal panel and lower distal panel provided in the lower section and connected between the lower and middle frames as well as an upper proximal panel and an upper distal panel provided in the upper section and connected between the middle and upper frames, said panels being of aerofoil construction and connected to the frames in their respective ends;
- and
- flaps mounted under the distal panels and connected to driving units, the flaps adapted to be controlled remotely, when the device is in use being towed through the water;
- wherein the proximal and distal panels are placed over each other, and wherein the lower distal panel and upper distal panel have a distal surface rendering them hollow, wherein the flaps constitute a part of the distal surface.
4 more elements
Dependencies are inferred from the claim text.