Accession Number : ADD005184

Title :   Salvage Apparatus and Method.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Buecher,Roger W ; Hoffman,Robert T

Report Date : 14 Mar 1978

Pagination or Media Count : 4

Abstract : A salvage apparatus which includes a collapsible bag which has a top and a bottom. A relief valve is mounted at the top of the bag for expelling air from the top of the bag, and a relief valve is mounted at the bottom of the bag for expelling water from the bottom of the bag. A fitting is mounted to the bag for introducing gas or water into the bag so that the rates of descent and ascent of the bag can be controlled. A method of recovering a submerged object includes filling the bag with water, attaching the bag to the submerged object, introducing gas into the bag until the object commences to ascend, and venting air from the top of the bag as the bag ascends to control the rate of ascent. (Author)

Descriptors :   *Patents, *Salvage, Bags, Ocean bottom sampling, Collapsible structures

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE