A marker and recovery device comprising: an enclosure adapted to be secured to a wearer; a bladder configured to fit within the enclosure in an uninflated state, the bladder comprising: an elongate tube; a first upper tube fluidly connected to the elongate tube at a first end of the elongate tube; and a second upper tube fluidly connected to the elongate tube at a second end of the elongate tube; and an inflation mechanism to inflate the bladder to extend the bladder from the uninflated state to a deployed state in which the first upper tube and second upper tube join to form a handle portion at the end of the elongate tube.

A wearable personal flotation device may be configured for wear under a parachute harness and may comprise a rear section and a pair of side sections that extend forward from lower sides of the rear section. A bladder may be contained in the rear and side sections and, when inflated, may expand through release gaps in fronts of the side sections. The rear section may include a panel of closed cell foam.

In one embodiment, a personal flotation device that can be worn by a user includes an inflation system including an inflatable bladder, a gas-generating component configured to generate gas using a chemical reaction and inject the generated gas into the bladder to inflate it, and an actuator configured to activate the gas-generating component; a sensor configured to sense one or more physiological parameters of the user; and an inflation control system configured to receive physiological parameter data from the sensor, to determine whether or not the user is experiencing a medical event that places the user at risk of drowning, and, if the user is experiencing such a medical event, to signal the actuator to activate the gas-generating component so as to provide floatation to the user.

One or more specific embodiments herein includes a personal flotation device, comprising a vest capable of floating in water and having front panels; a power source; a light source; at least two support straps; a first electrical cable; and a second electrical cable. Further, the first electrical cable and the second electrical cable are capable of being connected to one another to form a connector assembly through which electrical current is capable of flowing, and the connector assembly includes a housing for preventing water from contacting the electrical current when the connector assembly is formed.

A wearable personal flotation device may be configured for wear under a parachute harness and may comprise a rear section and a pair of side sections that extend forward from lower sides of the rear section. A bladder may be contained in the rear and side sections and, when inflated, may expand through release gaps in fronts of the side sections. The rear section may include a panel of closed cell foam.

An inflatable flotation device including two panels extending from a body an inflatable bladder. The two panels and the body may be closed to enclose the inflatable bladder with the two panels attached to each other using magnets. When the inflatable bladder is inflated, the magnets separate from each other and the two panels open up to expose the inflatable bladder and allow further inflation.

A marker and recovery device comprising: an enclosure adapted to be secured to a wearer; a bladder configured to fit within the enclosure in an uninflated state, the bladder comprising: an elongate tube; a first upper tube fluidly connected to the elongate tube at a first end of the elongate tube; and a second upper tube fluidly connected to the elongate tube at a second end of the elongate tube; and an inflation mechanism to inflate the bladder to extend the bladder from the uninflated state to a deployed state in which the first upper tube and second upper tube join to form a handle portion at the end of the elongate tube.

A marker and recovery device comprising: an enclosure adapted to be secured to a wearer; a bladder configured to fit within the enclosure in an uninflated state, the bladder comprising: an elongate tube; a first upper tube fluidly connected to the elongate tube at a first end of the elongate tube; and a second upper tube fluidly connected to the elongate tube at a second end of the elongate tube; and an inflation mechanism to inflate the bladder to extend the bladder from the uninflated state to a deployed state in which the first upper tube and second upper tube join to form a handle portion at the end of the elongate tube.

An electro-pneumatic valve assembly includes a valve having a valve housing and a poppet and a solenoid valve having an actuator housing and a valve body. The valve housing has a wall that defines a valve inlet that is arranged to receive a fluid flow from a pressurized container and defines a valve outlet and a first port. The poppet is disposed within the valve housing and is movable between a first position and a second position. The actuator housing defines an opening. The valve body has a first wall that defines an inlet that is fluidly connected to the first port and a second wall that defines an outlet that is fluidly connected to the second port.

Provided is a life jacket having a function of maintaining body temperature and preventing a drowning accident when water distress occurs. The life jacket includes: an inflatable buoyant member configured to be inflated to provide buoyancy; a jacket including a sealed bag, and being wearable on an upper body of a user; a vacuum pack having a spout and provided inside the sealed bag, the spout being configured such that an end thereof is exposed to an outside of the jacket; a self-triggering inflating body provided inside the vacuum pack; a heating element configured to generate heat by reacting with water flowing into the vacuum pack; and an interlock-type opening member, which is configured to open a stopper by being in conjunction with inflation of the inflatable buoyant member, the stopper being configured to normally close an inlet opening of the spout.