The present disclosure provides a carrying device and an operation method thereof. The carrying device includes: a floating platform; and at least one flexible unit provided on a bottom side of the floating plate and having a cavity formed therein. The flexible unit is deformed under a stress to reduce the friction force between the flexible unit and the solid in the water, which allows the carrying device to break free from the solid without external help.

The boat drain tube with an integral leak detector provides an audio and/or visual alarm to indicate the presence of a water leak within a drain of a boat. The boat drain tube includes a hollow, cylindrical tube having opposed first and second open ends, and first and second hollow, cylindrical electrodes rigidly mounted therein. The first and second hollow cylindrical electrodes are axially spaced apart from one another to define an electrically nonconductive gap therebetween. An alarm, an electrical power source, and the first and second hollow, cylindrical electrodes are connected in series to define a circuit open at the gap. The alarm may be an audio alarm, a visual alarm (such as lights, light emitting diodes or the like), or a combination of audio and visual alarms. When water enters the gap between the first and second hollow cylindrical electrodes, the circuit closes to activate the alarm.

The boat drain tube with an integral leak detector provides an audio and/or visual alarm to indicate the presence of a water leak within a drain of a boat. The boat drain tube includes a hollow, cylindrical tube having opposed first and second open ends, and first and second hollow, cylindrical electrodes rigidly mounted therein. The first and second hollow cylindrical electrodes are axially spaced apart from one another to define an electrically nonconductive gap therebetween. An alarm, an electrical power source, and the first and second hollow, cylindrical electrodes are connected in series to define a circuit open at the gap. The alarm may be an audio alarm, a visual alarm (such as lights, light emitting diodes or the like), or a combination of audio and visual alarms. When water enters the gap between the first and second hollow cylindrical electrodes, the circuit closes to activate the alarm.

A system for autonomous ocean data collection includes at least one sensor capable of collecting sensor data, at least one transmission device, and at least one computing device comprising one or more hardware processors and memory coupled to the one or more hardware processors, the memory storing one or more instructions which, when executed by the one or more hardware processors, cause the at least one computing device to generate data for transmission based on the sensor data collected by the at least one sensor, and cause the at least one transmission device to transmit the data.

A system for autonomous ocean data collection includes at least one sensor capable of collecting sensor data, at least one transmission device, and at least one computing device comprising one or more hardware processors and memory coupled to the one or more hardware processors, the memory storing one or more instructions which, when executed by the one or more hardware processors, cause the at least one computing device to generate data for transmission based on the sensor data collected by the at least one sensor, and cause the at least one transmission device to transmit the data.

A nonlimiting example of a yacht preserver includes a handle, a container at an end of the handle, and an inflator device connected to an inflatable bladder. In this nonlimiting example, the inflator device includes a gas canister that is configured to deliver gas to inflate the bladder upon activation. The yacht preserver may be used to seal an opening of a yacht by placing the uninflated bladder near the opening in the yacht and activating the inflator device allowing the bladder to expand to seal the opening.

A nonlimiting example of a yacht preserver includes a handle, a container at an end of the handle, and an inflator device connected to an inflatable bladder. In this nonlimiting example, the inflator device includes a gas canister that is configured to deliver gas to inflate the bladder upon activation. The yacht preserver may be used to seal an opening of a yacht by placing the uninflated bladder near the opening in the yacht and activating the inflator device allowing the bladder to expand to seal the opening.

The present disclosure provides a carrying device and an operation method thereof. The carrying device includes: a floating platform; and at least one flexible unit provided on a bottom side of the floating plate and having a cavity formed therein. The flexible unit is deformed under a stress to reduce the friction force between the flexible unit and the solid in the water, which allows the carrying device to break free from the solid without external help.

The present disclosure provides a carrying device and an operation method thereof. The carrying device includes: a floating platform; and at least one flexible unit provided on a bottom side of the floating plate and having a cavity formed therein. The flexible unit is deformed under a stress to reduce the friction force between the flexible unit and the solid in the water, which allows the carrying device to break free from the solid without external help.

Systems and methods for righting a capsized watercraft are described. The system may include a selectively inflatable bladder inside a canvas gunwale float that can be releasably attached to one side of a boat. When the other side of the boat is lifted, the float keeps at least a portion of the lowermost gunwale above the surface of the water, thereby impeding the unwanted entry of water into the boat during righting. The inflatable bladder is sized in volume according to the size and shape of the boat. The system may include one or more floats spaced apart along the side. In another aspect, one of the floats may be attached to a paddle to create a temporary outrigger for use in climbing out of the water and into the boat.