Abstract: A sea-bottom mine actuated by a remote-control device, includes at least operational part and a plurality of explosive sections. While awaiting use, the operational part and explosive sections are kept in an elongated column-like storage arrangement with the operational part and explosive sections hinged or flexibly connected together. In the storage arrangement, the operational part and explosive sections can be releaseably locked together. When the mine is thrown into the sea, the operational part and explosive sections are displaced from the column-like storage arrangement and open out into a flat arrangement with the operational part and explosive sections still interconnected together.

Abstract: A mine to be laid on the ocean floor consists of two separate containers joined together into a unit. One container holds a firing system and the other an explosive. The explosive is salt water resistant and of a plastic consistency. The container for the explosive is destructible so that it can be removed from about the explosive either during or after placement on the ocean floor. A flexible reinforcement member encloses the explosive so that, after the container is removed and the explosive can flow on the ocean floor, the reinforcement member holds the explosive together.