Disclosed herein is a sonobuoy cartridge percussion apparatus. A sonobuoy cartridge percussion apparatus according to an aspect of the present invention includes: a CO.sub.2 cartridge filled with CO.sub.2 gas; a percussion ram configured to hit one end of the CO.sub.2 cartridge; a spring configured to enable the percussion ram to hit the CO.sub.2 cartridge by applying force to the percussion ram; a CO.sub.2 cartridge fastening body configured such that a spring reception hole is formed therein to enable the spring to be compressed and inserted into the spring reception hole; and a thread-shaped fastening member configured such that one end thereof is wound around the percussion ram and the other end thereof is passed through the spring reception hole, wherein the fastening member compresses the spring, and is fastened to a stop protrusion formed on the CO.sub.2 cartridge fastening body.

Disclosed herein is a sonobuoy cartridge percussion apparatus. A sonobuoy cartridge percussion apparatus according to an aspect of the present invention includes: a CO.sub.2 cartridge filled with CO.sub.2 gas; a percussion ram configured to hit one end of the CO.sub.2 cartridge; a spring configured to enable the percussion ram to hit the CO.sub.2 cartridge by applying force to the percussion ram; a CO.sub.2 cartridge fastening body configured such that a spring reception hole is formed therein to enable the spring to be compressed and inserted into the spring reception hole; and a thread-shaped fastening member configured such that one end thereof is wound around the percussion ram and the other end thereof is passed through the spring reception hole, wherein the fastening member compresses the spring, and is fastened to a stop protrusion formed on the CO.sub.2 cartridge fastening body.

The present invention is a deployable climate blanket system for regulating temperature of a water surface, including two or more climate blanket secured one to another, each blanket configured with an interior air-filled cavity and a plurality of weights for maintaining the system into a desired position. When use of the blankets is no longer desired, the blankets can be lowered beneath the water surface so as not to interfere with boat traffic or other surface use of the water.

An inflatable RADAR signal device that is capable of rising above the surface of the water when deployed and that reflects RADAR emissions. The signal device is a self-contained, small, independent system that can withstand being present in a maritime environment, including being submerged in the water and/or being located on a vessel in the water, for an extended amount of time. The device includes a housing that houses one or more deflated balloons that are constructed of a material that, when inflated, rise above the level of the water and that reflect RADAR emissions. The device includes at least one gas cylinder for inflating the balloon(s), and a mechanism to trigger release of the balloon(s) from the housing including a mechanism to trigger release of the gas from the gas cylinder(s) to inflate the balloon(s).

An inflatable RADAR signal device that is capable of rising above the surface of the water when deployed and that reflects RADAR emissions. The signal device is a self-contained, small, independent system that can withstand being present in a maritime environment, including being submerged in the water and/or being located on a vessel in the water, for an extended amount of time. The device includes a housing that houses one or more deflated balloons that are constructed of a material that, when inflated, rise above the level of the water and that reflect RADAR emissions. The device includes at least one gas cylinder for inflating the balloon(s), and a mechanism to trigger release of the balloon(s) from the housing including a mechanism to trigger release of the gas from the gas cylinder(s) to inflate the balloon(s).

An axial piercing mechanism for a pressurized gas canister includes a housing, electric motor assembly, pushrod assembly, and lancet. The housing defines one or more radial exhaust ports and coaxial internal cavities. The electric motor assembly and pushrod assembly are disposed in the respective first and second cavities. The pushrod assembly is coupled to the electric motor assembly and is rotatably driven along the longitudinal axis thereby. The lancet is coupled to the pushrod assembly. The housing includes a second end that receives or couples to a sealed end of the pressurized gas canister proximate the lancet such that the electric motor assembly, when energized, causes the pushrod assembly and lancet to translate along the longitudinal axis, pierce a sealed end/diaphragm of the canister, and release pressurized gas through the exhaust port. A system includes the axial piercing mechanism and the pressurized gas canister.

An axial piercing mechanism for a pressurized gas canister includes a housing, electric motor assembly, pushrod assembly, and lancet. The housing defines one or more radial exhaust ports and coaxial internal cavities. The electric motor assembly and pushrod assembly are disposed in the respective first and second cavities. The pushrod assembly is coupled to the electric motor assembly and is rotatably driven along the longitudinal axis thereby. The lancet is coupled to the pushrod assembly. The housing includes a second end that receives or couples to a sealed end of the pressurized gas canister proximate the lancet such that the electric motor assembly, when energized, causes the pushrod assembly and lancet to translate along the longitudinal axis, pierce a sealed end/diaphragm of the canister, and release pressurized gas through the exhaust port. A system includes the axial piercing mechanism and the pressurized gas canister.

An underwater object retrieval device for selective deployment to retrieve underwater objects includes an inflation unit that is configured to inflate upon command. A coupler is configured for coupling to an object to be placed underwater. A tether line has a first end, which is coupled to the inflation unit, and a second end, which is coupled to the coupler. A line storage unit is coupled to the tether line proximate to the second end. The line storage unit is positioned to house the tether line, such that the tether line is extensible from the line storage unit. The inflation unit is positioned to inflate upon user directed command, such that the inflation unit is buoyant. The tether line is extended from the line storage unit, such that the inflation unit reaches the water surface. The tether line is configured for retrieving the object to the surface.

An underwater object retrieval device for selective deployment to retrieve underwater objects includes an inflation unit that is configured to inflate upon command. A coupler is configured for coupling to an object to be placed underwater. A tether line has a first end, which is coupled to the inflation unit, and a second end, which is coupled to the coupler. A line storage unit is coupled to the tether line proximate to the second end. The line storage unit is positioned to house the tether line, such that the tether line is extensible from the line storage unit. The inflation unit is positioned to inflate upon user directed command, such that the inflation unit is buoyant. The tether line is extended from the line storage unit, such that the inflation unit reaches the water surface. The tether line is configured for retrieving the object to the surface.

A submersible buoy comprising a body defining a space; a gas compressor in fluid communication with a pressure vessel, where the gas compressor is capable of releasing gas from the pressure vessel into the space and of sucking gas out of the space into the pressure vessel; a battery that powers the gas compressor; and a controller in electronic communication with the gas compressor, where the controller controls the operations of the gas compressor.