A device comprises a spring and a sleeve. The spring is configured to form a closed loop. The spring is moveable between a coiled configuration when the spring is collapsed and an uncoiled configuration when the spring is expanded. The spring defines a circumference while in the uncoiled configuration. The spring is disposed within the sleeve.

Disclosed is a wet suit, including: an upper jacket 100 for, putted on an upper body of a user, injecting or discharging air into an interior by the user's operation or a predetermined operation; a pair of lower pants 200 putted on a lower body of the user; and a propulsive generation portion 300 for, detachably putted on a waist of the user, generating a self-propulsive force according to the user's operation or a predetermined operation to generates a propulsive force for pushing water to a rear direction of the user.

A wader garment is provided, wherein the wader garment includes buoyant elements that may be employed so that a wearer may float in water, should the need arise, and further includes means for providing a substantially water-tight seal between the waders and a wearer at an upper portion of the waders. The wader garment may also include drainage valves on the leg portions to drain water from waders, if necessary, as well as a urination valve that may be in an open position or a closed position.

An air bag structure includes an air bag body. The air bag body includes a first air bag, a second air bag, and an intermediate partition disposed between the first air bag and the second air bag. The intermediate partition is extensible. When one of the air bags is broken, the other air bag is inflated. The intermediate partition is deformed to move toward the rupture, and the air volume of the good air bag is doubled and returned to the original air volume, thereby maintaining buoyancy.

An air bag structure includes an air bag body. The air bag body includes a first air bag, a second air bag, and an intermediate partition disposed between the first air bag and the second air bag. The intermediate partition is extensible. When one of the air bags is broken, the other air bag is inflated. The intermediate partition is deformed to move toward the rupture, and the air volume of the good air bag is doubled and returned to the original air volume, thereby maintaining buoyancy.

A device comprises a spring and a sleeve. The spring is configured to form a closed loop. The spring is moveable between a coiled configuration when the spring is collapsed and an uncoiled configuration when the spring is expanded. The spring defines a circumference while in the uncoiled configuration. The spring is disposed within the sleeve.

Flexible lifesaving devices, such as life vests, pilot suits, lifeboats, lifebuoys, providing flotation to their users. An internal inflation space, integral to the device, has a volume sufficient when inflated, to provide flotation to a person or persons having up to a predetermined weight, using the device. Pressurized flotation gas, having a volume in its gaseous phase sufficient to inflate the internal space, is contained in a flexible pressurized gas container, such as a length of tubing or a pouch in a wall of the device, and enables the device to be both flexible and foldable. A valve connects the flexible container with the internal inflatable space of the device, such that when the valve is opened, the volume of pressurized flotation gas flows into the internal space. The flexible container is a regulatory required part of the device, which is thus flexible and foldable.

The present invention relates to a water floatation garment, and in particular, to such a swimming garment incorporating a fillable bladder and electronics provided to identify emergency situation such as drowning based on sensed data that causing the garment to trigger the fillable bladder to inflate allowing a user to float to surface therein preventing a drowning.

An aquatic system is provided for use with an object. The aquatic system includes: a parameter detector being configured to detect a parameter of the object and to output an activation signal based on the detected parameter; an inflatable bladder being configured to inflate with a gas to displace a volume of water when the object is in the water; a memory having instructions stored therein; and a stabilization controller being configured execute the instructions to cause the inflatable bladder to inflate so as to establish horizontal buoyancy of the object based on the activation signal.

The present invention provides a system for the supporting and the containment of a person, which system comprises an inflatable exoskeleton structure, and an inflatable containment structure for said person. The exoskeleton structure is substantially soft and flexible when in the non-inflated condition and is easily worn by the user, and once worn it can be inflated for submersion in water to provide the required buoyancy support to the user. When the inflatable containment structure is in the deflated condition it is completely collapsed and may be contained in a bag or backpack, and when it is in the fully inflated condition it can accommodate and support the injured person therein in a blocked manner by containment means of said person in said containment structure.