Salvage container and salvaging method

A salvage container for salvaging ammunition, which has been dumped into the water, on the water, comprising:

• a container body that has a bottomed cylindrical shape that is open in a specific direction so that the ammunition is inserted therein and that has an inner side surface surrounding the ammunition inserted therein;
• a lid that is disposed in a region surrounded by the inner side surface of the container body so as to block an opening portion of the container body;
• a gasket that is disposed in the region surrounded by the inner side
• surface of the container body so as to block a gap between the inner side surface of the container body and the lid from an outer side in the specific direction of the lid;
• and
• a gasket presser that is disposed at the outer side in the specific direction of the gasket so as to clamp the gasket between the lid and the gasket presser, wherein:
• the container body includes a lid holder that holds the lid and a gasket presser holder that holds the gasket presser,
• the lid holder holds the lid so that the lid is not displaced toward the inner side in the specific direction in relation to the container body and is displaced toward the outer side in the specific direction,
• the gasket presser holder holds the gasket presser so that, when the lid is displaced toward the outer side in the specific direction in relation to the container body according to a decrease in hydraulic pressure, the amount of relative displacement at the outer side in the specific direction of the
• gasket presser in relation to the container body is smaller than the amount of relative displacement at the outer side in the specific direction of the lid in relation to the container body whereby the lid is displaced toward the outer side in the specific direction in relation to the gasket presser, and
• the gasket is configured to be compressively deformed between the lid and the gasket presser when the lid is displaced toward the outer side in the specific direction in relation to the gasket presser, and hermetically seals the gap between the inner side surface of the container body and the lid by making close contact with the inner side surface of the container body and the lid according to the compressive deformation.