Accession Number : ADD015574

Title :   Barrier Curtain.

Descriptive Note : Patent, Filed 28 May 91, patented 13 Oct 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : DeVries, Jack ; Rhoads, Carl

Report Date : 13 Oct 1992

Pagination or Media Count : 9

Abstract : An apparatus for reducing sedimentation in ship berths including one or more modules, spanning the entrance of a ship berth and providing a continuous, homogeneous, impervious barrier, each module including a base located on the sea floor, an accordion type curtain extendable in the vertical direction and attached on its bottom side to the base, a float attached to the curtain on the top side, a primary operating system for raising and lowering the curtain and a secondary operating system for raising the entire apparatus to the sea surface for repair or removal.

Descriptors :   *BARRIERS, *PATENTS, *HARBORS, FLOATS, FLOORS, OCEAN BOTTOM, REMOVAL, REPAIR, SECONDARY, SEDIMENTATION, SHIPS, SURFACES

Subject Categories : Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE