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A comment on New closure allows camping mattress to be inflated in seconds.

Re:New closure allows camping mattress to be inflated in sec... by Zmetta on Tuesday May 21, 2013 @09:32AM (#5743500)
The valve is based on the Venturi effect. The fluid flow through a constriction lowers the pressure at the constriction point. An inlet at the low pressure point will allow addition fluid at atmospheric pressure to enter through the inlet in the constriction thus adding to the total fluid through the outlet. Pretty clever use of fluid dynamics!
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Re:New closure allows camping mattress to be inflated in sec... by tlrobinson on Tuesday May 21, 2013 @04:30PM (#5746621)
Avalanche airbags use the same principle to inflate larger than the volume of compressed air in their canisters.
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Re:New closure allows camping mattress to be inflated in sec... by notdrunkatall on Tuesday May 21, 2013 @10:34AM (#5743861)
This is what I was looking for, thanks.
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