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A comment on 22-year British student invents a mobile fridge that could save many lives. Parent comment

Re:22-year British student invents a mobile fridge that coul... by userbinator on Saturday September 10, 2016 @09:11PM (#12471618)
but I guess the difference could be in having a valve that spends the cooling only as needed.

That's not novel either --- amusingly enough, I saw your comment only after posting this link to someone else who actually made one of these units:

https://news.ycombinator.com/item?id=12471609

From that article:

Larry improved on the original design by adding a shut off valve in the connecting tube so after the Icyball was fully charged it could be shut off and the cooling cycle delayed till later, when you needed it.

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Re:22-year British student invents a mobile fridge that coul... by maxerickson on Saturday September 10, 2016 @09:22PM (#12471645)
Sure, a valve itself isn't any big deal. A good self regulating system makes it a practical portable cooler though.

Time will tell.

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