Hello DIB:
Eureka's first bagless upright, called the Whirlwind "cyclonic"
that was mass marketed in the USA was a single cyclone, not dual cyclone
like dyson.
Carmine,
Re: Whirlwind Cyclonic. Since Eureka abandoned it, it must be assumed as a mechanical failure. It filtered probably no better than today’s so called bagless cyclonic, Dyson-looking but not Dyson-filtering vacuums.
WRT to the first clear dust bin, I mentioned recently that Regina used a
clear plastic dust cup on its later Electrik Brooms [probably late 1960's early 1970's].
So users could see the dirt in the cup for dumping.
So it is settled, Regina fathered the clear dust cup and Dyson fathered the clear cyclonic collector.
Today manufactures have and will continue to profit perhaps in the hundreds of millions of dollars
by copying James’ clear cyclonic collector innovation. Is the Regina dust cup being copied
or nearly exactly copied by many (as Dyson competitors are doing to Dyson)?
Also Lewyt canisters, which were bagless and then went bagged in the
mid 1950's, used a paper bag called the Speed Sak that had a clear see thru panel
that extended the entire length of the bag. So users didn't have to quess if
the bag needed to be replaced.
Most if not all of the floor washers and scrubbers of the 1960's and 1970's used clear/cloudy
see thru plastic water tanks so users could see the levels of clean/dirty water
solutions.
Name brand canisters in the 1970's, like Sears, used clear see thru plastic covers for the tops
of the on-board tool storage so users could see that all the tools were present and properly
stored.
The application of clear/see-thru floorcare bins, bags, tanks and covers is not unique
to any particular vacuum brand, make, and/or model like dyson/dyson bagless vacuums. Their
usage has a long and storied history in the vacuum/floorcare industry in the USA dating back several
…But “the suits” weren’t smart enough or inventive enough to see profits in making a clear cyclonic container.
The “suits” were too busy dictating to the public what their definition of innovation was. And not profiting from bag sales,
turned out to be way to much for the inventive inept “suits” to get their heads around. DIB