USA as Represented by Secretary of the Navy

Terry E Hill

Jan B Yates

Vonne D Linse

Ernest C Faccini

George R Riley

Sheryll C Green

John J Reidy

William K Shafley

Paul G Tack

Harry S Williams

An apparatus for attaching a pad eye to an underwater ship includes explosives connected to the wings of the pad eye to explosively weld it to the hull of the ship. A water-tight housing holds the pad eye and allows gas to be introduced to drive away all water. Magnets hold the housing to the hull before detonation, a window in the top of the housing allows the diver to observe the entrance of the gas.

Apparatus for attaching an underwater explosive pad eye

An underwater excavator comprising a modular non-metallic cofferdam wherein ater under pressure exits from a plurality of nozzles along at least one side of the base of the cofferdam and a fluid driven eductor driven by pressurized fluid evacuates the suspended solids raised by the pressurized fluid that flows through the nozzles, with a plurality of small barrier nozzles located along one or more horizontal conduits used to sink the cofferdam.

Underwater excavator

Growing community of inventors

Thornville, OH, United States of America

Terry E Hill