Device for lowering and raising fish rearing units

Details Device for lowering and raising fish rearing units Device for lowering and raising fish rearing units

A - Human Necessities

01

K

A01K 61/00 (2006.01)

Patent

CA 2211437

A device for lowering and raising of rearing units (1) is provided with a float collar (2) comprising inner and outer float rings (3, 4). The float rings (3, 4) are hollow, and normally watertight, so that the rearing unit floats on the surface of the water. The device comprises water charging means (9a, 9b) having a valve mechanism (10), and which are situated on the inner and outer float rings (3, 4), respectively. Through the water charging means (9a, 9b), water can be let into and out of the float rings (3, 4) during lowering and raising, respectively. The device further comprises air relief means (11a, 11b), which are situated on the inner and outer float rings (3, 4), respectively, diametrically opposite the water charging means (9a, 9b), in order to let air out of and into the float rings (3, 4) during lowering and raising, respectively.

La présente invention concerne un dispositif de descente et de remontée d'unités de stabulation de pisciculture (1) qui se compose de boudins annulaires flottants intérieur et extérieur (3, 4). Ces boudins annulaires flottants (3, 4) creux et normalement étanches à l'eau font flotter à la surface de l'eau des unités de stabulation de pisciculture. Le dispositif comporte des organes de chargement d'eau (9a, 9b) pourvus d'un mécanisme à vanne (10), les organes et le mécanisme étant respectivement disposés sur les boudins annulaires flottants intérieur et extérieur (3, 4). Les organes de chargement d'eau (9a, 9b) assurent l'admission d'eau dans les anneaux-boudins flottants intérieur et extérieur (3, 4), ainsi que la chasse de cette eau, à l'occasion de la descente et de la remontée, suivant le cas. Le dispositif comporte en outre des organes d'évacuation de l'air (11a, 11b) respectivement disposés sur les boudins annulaires flottants intérieur et extérieur (3, 4), et diamétralement opposés aux organes de chargement d'eau (9a, 9b). Ces organes servent à chasser l'air des boudins annulaires flottants (3, 4), ou l'y laisser entrer à l'occasion, suivant le cas, de la descente ou de la remontée.

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