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Axial, cylindrical pipe construction for use in fish cage, has ballast chambers that are stable and flexible in axial, cylindrical sectional spaces, where ballast chambers control complete cage only with corresponding air volume
Axial, cylindrical pipe construction for use in fish cage, has ballast chambers that are stable and flexible in axial, cylindrical sectional spaces, where ballast chambers control complete cage only with corresponding air volume
The pipe construction has ballast chambers (2) that are stable and flexible in the axial, cylindrical sectional spaces, where the ballast chambers control a complete cage only with corresponding air volume in each desired depth. Three pipes are welded with steel plates and form ballast chambers for water and air and so control the cage in each desired depth. Independent claims are also included for the following: (1) a window for a fish cage; (2) a cylinder with compressed air and rubber containers; (3) a porous air tube that is fixed to the longitudinal strut of the fish cage; (4) a liquid- and air feeding pipe system; (5) a feeding device for feeding the intake of food pellets into a water stream; (6) a harvest fish net; and (7) a fish sorting grade with a fish harvesting device.
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