Accession Number : ADD003297
Title : Grabber.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Langguth,Arthur F
Report Date : 19 Oct 1976
Pagination or Media Count : 9
Abstract : The patent is for a device that assures the underwater recovery of heavy objects by marine mammals. A trigger mechanism releases sections of spring biased tubing which converge about the object. After the tubing sections interconnect, the marine mammal pulls free and the object is retrieved by a hoisting line. If the object is partially buried in marine sediment, a pair of pressurized gas cartridges are ruptured to jet a pathway for the converging tubular sections. Because the tubing sections are inherently strong, the hoisting line optionally is connected directly to them or to a suitably arranged bridle. The lightweight concentrically arranged tubing sections are capable of lifting heavy loads and are designed to assure reliable trouble-free operation.
Descriptors : *Tubular structures, *Marine salvage, *Patents, Underwater object locators, Animals, Attachment, Release mechanisms, Recovery
Subject Categories : Marine Engineering
Distribution Statement : APPROVED FOR PUBLIC RELEASE