2024年4月23日发(作者：)

专利内容由知识产权出版社提供

专利名称：Drydocking device having a moment

resisting arrangement

发明人：John R. Sutton

申请号：US06/451923

申请日：19821221

公开号：US04509446A

公开日：19850409

摘要：The present invention relates to a drydocking method and apparatus including

a moment resisting arrangement for maintaining the drydocking device in a substantially

horizontal plane while raising or lowering a vessel relative to a surface of a body of water.

The drydocking device includes a submersible pontoon having a first side positioned

adjacent to a single fixed structure and having an arrangement for selectively introducing

air or water into at least one chamber within the pontoon for raising and lowering the

pontoon, respectively. The pontoon has a moment resisting arrangement which includes

a cable secured to the fixed structure and extending around a first sheave positioned

adjacent to the first side of the pontoon. The cable extends across the pontoon and

around a second sheave positioned adjacent to a second opposite side of the pontoon to

an anchoring arrangement beneath the second side of the pontoon. The moment

resisting arrangement also includes at least one permanent void tank and at least one

permanent ballast tank positioned within the pontoon for creating an induced moment

tending to rotate the first side of the pontoon downwardly. In operation, the induced

moment resists external moments due to eccentrically positioned vessels which tend to

rotate the second side downwardly, and the cable resists the induced moment and other

external moments due to eccentrically positioned vessels which tend to rotate the first

side downwardly.

申请人：MARINE CONCEPTS, INC.

代理机构：Burns, Doane, Swecker & Mathis

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