Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Such magnets may be electromagnets powered by batteries in some embodiments.

A signal device for maritime distress rescue and a surveillance device for maritime distress rescue are provided. The signal device for maritime distress rescue which is carried by a user aboard a vessel may include a first communicator configured to communicate with a surveillance device for maritime distress rescue of the vessel, a first position detector configured to generate first position information of the signal device at a predetermined time interval, and a first controller configured to receive second position information of the surveillance device from the surveillance device at a predetermined time interval and determine whether the first position information is within a safe area of the vessel that is set on the basis of the second position information. Accordingly, when a distress occurs, it is possible to transmit a distress signal without operating a switch while minimizing power consumption of the signal device.

The present invention relates to a cover that is used as a backrest cover in daily use and also as a life jacket in an emergency. More particularly, the present invention relates to a backrest cover including: a front portion configured to cover a front surface of the backrest; a rear portion configured to cover a rear surface of the backrest; a connector configured to extend across an upper end of the backrest, connecting the front and back portions; and a buoyancy body provided in at least one of the front portion, the rear portion, and the connector.

Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Some embodiments may be of personal floatation devices (PFDs) fitted with at least one magnet configured to repel sharks away from the PFDs. Some PFDs may be fitted with a tethered drop-down magnetic apparatus to protect lower extremities of a wearer of such PFDs. Such magnets may be electromagnets powered by batteries in some embodiments.

Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Some embodiments may be of personal floatation devices (PFDs) fitted with at least one magnet configured to repel sharks away from the PFDs. Some PFDs may be fitted with a tethered drop-down magnetic apparatus to protect lower extremities of a wearer of such PFDs. Such magnets may be electromagnets powered by batteries in some embodiments.

A body-enhanced life jacket includes a life jacket and an undergarment within the life jacket. The undergarment is configured to shape and provide support for a user's breasts.

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.

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 lift vest of this disclosure includes a base garment shaped to cover at least a substantial portion of an upper torso of a patient, a waist belt connected to the base garment, and a pair of crotch belts removably connected to the waist belt. The base garment may include a chest a waist belt interconnected by cross-webbing. Pulling on one or both of the belts in any direction causes the webbing to tighten about the wearer's torso. The lift vest may include a pair of knee belts connected to the waist belt. The knee belts can be fixed to the waist belt or removably connected to it. The knee belt may include a removable connection along its length. Other embodiments include a base garment covering the upper torso below the armpits and having a single belt connected to garment that provides a hand hold.

A lift vest of this disclosure includes a base garment shaped to cover at least a substantial portion of an upper torso of a patient, a waist belt connected to the base garment, and a pair of crotch belts removably connected to the waist belt. The base garment may include a chest a waist belt interconnected by cross-webbing. Pulling on one or both of the belts in any direction causes the webbing to tighten about the wearer's torso. The lift vest may include a pair of knee belts connected to the waist belt. The knee belts can be fixed to the waist belt or removably connected to it. The knee belt may include a removable connection along its length. Other embodiments include a base garment covering the upper torso below the armpits and having a single belt connected to garment that provides a hand hold.