Marine

Compact life preserver blows up when it hits the water

Compact life preserver blows u...
OneUp, ready to be chucked
OneUp, ready to be chucked
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OneUp, ready to be chucked
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OneUp, ready to be chucked
OneUp measures 6.8 inches long (172 mm) and weighs 0.8 lb (363 g)
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OneUp measures 6.8 inches long (172 mm) and weighs 0.8 lb (363 g)
Once inflated, the OneUp float can support swimmers weighing up to 330 lb (150 kg)
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Once inflated, the OneUp float can support swimmers weighing up to 330 lb (150 kg)

Which do you think would be easier to throw to someone who's drowning, a big ol' life preserver or a compact device about the size of a pop can? If you went with the latter – and if you spend a lot of time on the water – then you might be interested in OneUp.

Measuring 6.8 inches long (172 mm) and weighing 0.8 lb (363 g), OneUp consists of an inflatable polyurethane float with an attached CO2 canister, both of which are stuffed into a cylindrical case.

As long as everything stays dry, the float remains deflated. Upon contact with the water, though, a salt pod in OneUp dissolves. This causes a spring to be released, which in turn allows the canister to inflate the float, which pops out of the case. The whole process takes just two seconds.

Once inflated, the OneUp float can support swimmers weighing up to 330 lb (150 kg)
Once inflated, the OneUp float can support swimmers weighing up to 330 lb (150 kg)

Once inflated, the float can support swimmers weighing up to 330 lb (150 kg). Afterwards, the float can be deflated again, a fresh canister and salt pod can be loaded in, and the whole thing can be reused.

If you're interested in getting a OneUp, it's currently the subject of an Indiegogo campaign. A pledge of US$49 will get you a unit, when and if they reach production.

It's demonstrated in the following video

Sources: OneUp, Indiegogo

OneUp - Portable inner tube that inflates on contact with water in the shape of a life preserver.

2 comments
Martin Winlow
Susceptibility to unwanted inflation in wet weather? Otherwise rather neat...
MD
It should only inflate if the trigger is submerged in liquid water, one would hope. A bit of humidity shouldn't affect things. The other way to go is with pressure sensitive triggers... Just hope that an atmospheric high pressure zone ( or firearm discharging nearby) doesn't exceed the pressure threshold...