최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0082231 (1979-10-05) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
A submersible vessel, such as a barge, has a plurality of ballast compartments, each of which communicates with the exterior of the vessel through a separate riser, each terminating in an elongate vertical opening in the hull of the vessel. A vertically movable gate is positioned over said openings.
In a submersible vessel, of the type having a hull and plural ballast compartments therein, and means for filling said compartments with water and evacuating water from said compartments by the application of predetermined negative and positive air pressure, respectively, the improvement comprising:
※ AI-Helper는 부적절한 답변을 할 수 있습니다.