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1. 发明授权

US3868921A Normally vented liquid-storage tank for ships, with closure device for automatically preventing leaking if the ship should sink 失效
标题翻译：用于船舶的正常通风液体储存罐，具有用于自动防止泄漏的闭合装置，如果船舶应该被吸收
公开(公告)号：US3868921A
公开(公告)日：1975-03-04
申请号：US26274172
申请日：1972-06-14
申请人： BOWMAN JON G
发明人： SEYMOUR DAVID JACKSON , MACRITCHIE NORMAN , MATTHEWS PARKER J , CLARK THOMAS A
IPC分类号： B63B25/08 , B63J2/08 , B63J2/10
CPC分类号： B63C7/006 , B63B25/082 , B63J2/10 , Y10T137/2036
摘要： A shipboard storage tank for liquids, such as petroleum products or chemicals. To prevent pressure buildup, and to permit overflow during filling, a vent and overflow conduit is provided. In order to prevent this vent and overflow conduit from becoming a source of pollution if the ship should sink and also in order to prevent loss of the contents of the tank upon sinking, the invention provides an anti-pollution valve installed in the conduit, which automatically closes the conduit, should the ship sink. The antipollution valve is actuated to its closed position by the hydrostatic pressure as the ship sinks and it automatically equalizes the pressures between the sea and the liquid within the tank as the vessel sinks to deeper depths. Transient effects, such as surface waves, are prevented from actuating the valve. The anti-pollution valve also includes means that make it possible to dump the liquid out from the tanks of sunken ships and thereby salvage it.
摘要翻译：用于液体的船用储存罐，如石油产品或化学品。为了防止压力累积，并且在填充期间允许溢出，提供排气和溢流导管。如果船舶沉没，为了防止这个排气口和溢流管道成为污染源，并且为了防止下沉时槽内物质的损失，本发明提供一种安装在管道中的防污阀，如果船下沉，则自动关闭导管。当船舶沉没时，防污阀门通过静水压力被启动到其关闭位置，并且当船舶沉入更深的深度时，它将自动平衡舱内的海洋和液体之间的压力。瞬时效应（如表面波）被阻止致动阀门。防污阀还包括能够将液体从沉没的船只中倾倒出来，从而将其挽救的手段。

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