Ballast tank device
OwnerOla G.o slashed.theseninventor
Life of this patent
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Abstract
A ring float floating in the surface of the ballast liquid is arranged around a pump housing with suction port submerged in a ballast tank. The ring float runs around the pump housing and will form a barrier which prevents a contaminating layer on the liquid surface from being drawn in through the suction port, said barrier preventing the contaminating layer from reaching the port before the suction port loses its suction effect as result of it taking in air.
Claims9
A ballast tank device comprising a tank for receiving liquid and a liquid discharge aperture opening out in the tank, characterised in that floating in the liquid in the tank a float is provided which forms a barrier in the liquid surface, at a height at least equal to a contaminated layer in the liquid surface, and in that in the tank guiding means are provided which guide the float to rest around the discharge aperture, in a position where the float will form a barrier around the discharge aperture.
Dependencies are inferred from the claim text.