Umarex origin and the "ever pressure tank system"

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I am sure there is limited information available so early in the pre release game....but does anybody have any information about this supposed pre pressurized, efficiency boosting tank system?

I remember proposing a somewhat similar concept ( if I understand the description correctly) of something of an expansion chamber, not unlike a very high operating pressure version of what a closed hot water system uses to maintain pressure during shot cycle.

Now I believe the road block with my proposed idea was to make it mechanically reliable and only time will tell if umarex has engineered reliability into the design .

Bob I believe you were the one to point me in the direction of a failed concept single pump pneumatic that made use if bellevilles to similar effect, made by one of the Brit companies...but man If this is what I'm thinking it is I'm really gonna be heated, yet another great idea I never let congeal into anything useful 😓