US 12,317,873 B2
Fish farming tank with an internal buoyancy ballast tank
Åsmund Hellesøy, Blomsterdalen (NO); Cato Lyngøy, Hjelmås (NO); and Halvor Larsson Aga, Bergen (NO)
Assigned to OVUM AS, Bergen (NO)
Appl. No. 17/795,682
Filed by OVUM AS, Bergen (NO)
PCT Filed Jan. 27, 2021, PCT No. PCT/NO2021/050022
§ 371(c)(1), (2) Date Jul. 27, 2022,
PCT Pub. No. WO2021/154087, PCT Pub. Date Aug. 5, 2021.
Claims priority of application No. 20200111 (NO), filed on Jan. 28, 2020.
Prior Publication US 2023/0106735 A1, Apr. 6, 2023
Int. Cl. A01K 61/60 (2017.01); A01K 63/00 (2017.01)
CPC A01K 61/60 (2017.01) [A01K 63/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A farming tank, comprising:
a closed, rigid shell including a farming body for aquaculture animals, the shell being essentially ellipsoidal or egg-shaped and arranged to have a generally vertical main axis, the shell delimiting an inside from an outside; and
at least one ballast tank arranged on the inside of the shell at an upper section of the shell, the at least one ballast tank having a radially outer wall which follows along a high-lying section of the inside of the shell or is formed by a high-lying section of the inside of the shell; and
a ballast pump arranged to fill or empty the at least one ballast tank partially or completely with water via a ballast water pipe.