Ballast tank device

Details Ballast tank device Ballast tank device

1996-01-02

1998-12-08

Rivell, John

Fluid handling

Systems

Tank with internally extending flow guide, pipe or conduit

137140, F17D 301

Patent

active

058456767

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.

REFERENCES:
patent: 1472560 (1923-10-01), Griffiths et al.
patent: 1536437 (1925-05-01), Klein
patent: 1788280 (1931-01-01), Dempsey
patent: 1921021 (1933-01-01), Tuller
patent: 2601894 (1952-07-01), Morse
patent: 2629334 (1953-02-01), Swanson
patent: 2638222 (1953-05-01), Roach
patent: 2851193 (1958-09-01), Hobson
patent: 2934087 (1960-04-01), Crow
patent: 4219047 (1980-08-01), Polley
patent: 4255361 (1981-03-01), Goettl

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