An inflation fluid supply and discharge assembly includes a combined two-way inlet and outlet valve having a valve body with two separate flow paths separated for flows in opposite directions. Each flow path is associated with a valve seat with a shutter, which cooperates with the valve seat in the manner of a non-return valve. One of the flow paths, intended for the passage of an incoming flow to a collection body, can be connected to a fluid supply source, the other flow path enabling the passage of a discharge flow from the collection body. A shutter is stably stressed against the corresponding valve seat, in a position of interdiction of the discharge or outlet flow, and is moved to a position at a distance from the valve seat by control members or automatically by a predetermined overpressure condition of the fluid in the collection body.

An apparatus and technique for underwater storage and deployment of a fishing line and buoy includes a cylinder coupled to a fishing apparatus. A buoy is attached to a buoy line coupled to the fishing apparatus and the buoy line and buoy are stowed within the cylinder in a first position. A holding mechanism holds a top perimeter of the cylinder closed until intentionally released. Upon release of the holding mechanism, the buoy and buoy line escape the cylinder. The buoy then pulls the buoy line to the surface where the fishing apparatus can be recovered by the fisher.

An apparatus and technique for underwater storage and deployment of a fishing line and buoy includes a cylinder coupled to a fishing apparatus. A buoy is attached to a buoy line coupled to the fishing apparatus and the buoy line and buoy are stowed within the cylinder in a first position. A holding mechanism holds a top perimeter of the cylinder closed until intentionally released. Upon release of the holding mechanism, the buoy and buoy line escape the cylinder. The buoy then pulls the buoy line to the surface where the fishing apparatus can be recovered by the fisher.