Accession Number : ADD001316
Title : Method and Apparatus for Positioning a Cofferdam.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Mittleman,John R
Report Date : 26 Nov 1974
Pagination or Media Count : 5
Abstract : The patent relates to a method and apparatus for positioning a cofferdam against a submerged surface. Weights are attached to the cofferdam such that the center of gravity of the cofferdam is closer to the submerged object than the center of gravity of the weights and above the center of gravity of the weights. Lifting eyes are attached to the cofferdam above its center of gravity from which cables extend. The cables support and position the cofferdam. The placement of the weights in relation to the lifting eyes create a moment which maintains contact between the cofferdam and the submerged object.
Descriptors : *Underwater structures, *Patents, Underwater construction, Position(Location), Watertightness
Subject Categories : Marine Engineering
Distribution Statement : APPROVED FOR PUBLIC RELEASE