Dustopper... commercial rip off of Thien's design?

[byron]

Seen the "Dustopper"?  It really looks like a straight up rip off of the Thien baffle design. :(

dustopper.com

[Sthutch]

Interesting! I wonder how much research they put into their design?

[BrianHood]

I own one of these which I connected to a Festool Sys-vac (with a tiny bag) and it works extremely well. As per usual, I end up with only the finest flour in the vac bag at a rate of about 2 oz for each 1/2 of a 5 gallon bucket.
As you can see from the photos posted by the OP, the inside of the top has a honeycomb texture and I wonder if this improves performance?