Ballast exhaust pipe closing appliance for a ship

Details Ballast exhaust pipe closing appliance for a ship Ballast exhaust pipe closing appliance for a ship

1982-11-17

1985-11-05

Shepperd, John W.

Pipes and tubular conduits

With closures and plugs

Inflatable

114125, F16L 5512

Patent

active

045507511

ABSTRACT:
A ballast exhaust pipe closing appliance for a ship is so designed that a closing stopper comprising an inflatable bag body is inserted in a ballast exhaust pipe. By supplying compressed air in the closing stopper, the closing stopper is inflated and closes the ballast exhaust pipe, thereby preventing liquid which leaked in the ballast exhaust pipe from flowing into the sea. Also, the closing stopper can be removed automatically and fluid which leaked in the ballast exhaust pipe can be drawn out by exhausting compressed air in the closing stopper and by raising the air pressure in the ballast exhaust pipe.

REFERENCES:
patent: 1506418 (1924-08-01), Evensta et al
patent: 1510212 (1924-09-01), Du Bois
patent: 3870085 (1975-03-01), Schneider
patent: 4144908 (1979-03-01), Dunn
patent: 4373381 (1983-02-01), Kulp et al.

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