very interesting non-motorized gold mining dredge Patent

[daniel2015]

Found a very interesting patent "US 8240775 B2" some time ago from 2012. Seems like a really genius idea. Did someone saw this commercial product? Maybe it's something worth trying to build? Looks like it would be more efficient than a super long gravity dredge.
Here is the link to the full patent:
https://www.google.com/patents/US8240775



The parts can be acquired from any homeimprovement market. The drainage pipe would of course need some additional drilled holes in the riffles to work.

 

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[ratled]

Looks like part #22 is trying to be a natural jet and 16 &18 want to be a Bazooka

ratled

 

[daniel2015]

Would be really interested to see how great the suction of this device is. Couldn't find this product on the market yet.

 

[winners58]

Schmidt gold trap - Bazooka Dredge
Analytics for US Patent No. 5,366,092, Separation of valuable minerals from material found in the beds of bodies of water

 

[NeoTokyo]

You would still need length and drop to make that design work.

I don't think it is a good design.