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Trilobite

Name CKMorrison
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Date Joined Nov 7, 2007
Date Last Access Aug 19, 2008 1:58 pm
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Re: New UK Hoover ranges at www.argos.co.uk
#1   Aug 19, 2008 1:54 pm
Here is an X-ray type photograph, showing the trumpet-shaped cyclone. The involute separator sits above this. This is the photo that was printed upon the sales brochures, item cartons, etc.

http://www.bhrgroup.co.uk/bhrsoln/process/sephome.htm

Re: New UK Hoover ranges at www.argos.co.uk
#2   Aug 17, 2008 8:20 pm
Here is a link to the involute vortex technology:

http://www.bhrgroup.co.uk/bhrsoln/process/isep.htm

Re: New UK Hoover ranges at www.argos.co.uk
#3   Aug 17, 2008 7:46 pm
DysonInventsBig wrote:

Hey guys, take a closer look…

 

Has Hoover UK (vacuum cleaners) somehow been rehabilitated and can now invent their own problem solving products?

The Slalom at a glance…

Filtration:  Washable HEPA (per their site)

Maneuverability:  The Sebo Felix has already been doing this swivel/elbow w/ limited maneuverability for sometime; power nozzles on canisters also have this same swivel/elbow w/ limited maneuverability.

Twisting turning:  Where’s the right angle (to the body) handle grip?  A average size and strength woman must have a gorilla grip like hand to squeeze the handle so it does not slip while attempting to twist n turn this vacuum.

Weight in use (language used t Hoover site):  Slalmon – 18.45lbs.  Dyson DC15 – 19lbs.

 

The Slalom is a problem solving disaster.  Dyson is way, way ahead of the industry and does it much better…  Buy a Dyson DC15 vs. Hoover Slalom or buy a DC24 or DC25 for a lighter and highly steerable vacuum (more than Sebo and Hoover UK).

 

Hoover (vacuum) UK have a proven track record as *schemers not inventors.        DIB 

 

*Remember the free flights w/ purchase fiasco?  Stealing Dyson’s Dual Cyclone and then lying/misleading about it at trial – Mr. Dyson testified in detail how he invented the dual cyclone.  Yet not one Hoover UK engineer or designer testified at trial to the Triple Vortex’s originality, the judge was not impressed. 


The Triple Vortex was apparently designed in conjunction with BHR Group, who are specialists in the oil industry. They specialise in cyclonic separation of the oil from sediments, and had a recycling system to amplify the amount of sediment recovered from the oil. Hoover apparently stated at the trial that their machine was derived from the oil industry technology.

The Hoover Triple Vortex had an intermediate cyclone, called "the involute vortex separator", situated between the low and high efficiency vortices. This did not deposit dirt in the normal way, by spinning it out of the airflow. Instead, it took the soiled air filtered by the perforated shroud, and allowed the air to follow a spiral pattern up the inside wall of a smaller diameter cyclone chamber, exiting tangentially via ducting, which led to the high efficiency vortex chamber, where the dust was spun out of the airflow.

The clean air (which might still have dust particles in it) exited up through the vortex finder of the high efficiency chamber, right into the 'eye of the storm' of the involute chamber. The idea being that the dirt particles would rejoin the airflow in the involute chamber, to go for another scrubbing through the high efficiency chamber. The clean air from the high efficiency vortex finder traced a vertical path, right through the involute chamber, until it encountered another vortex finder at the top of this chamber. The air exited to a foam diffuser pre-motor filter, then into the motor. The exhaust filter was washable foam, on the basic model, or washable HEPA on the top model.

Re: New UK Hoover ranges at www.argos.co.uk
#4   Aug 15, 2008 8:44 pm
Venson:

As far as I am aware, they do not employ pleated filters as the primary filtration system. Instead, they use a standard low-efficiency cyclone, followed by higher efficiency '12 V-cell separators'. The air is then filtered by primary filters situated in the top of the cyclonic array.

Not having seen the the machines in the flesh, I'm presuming that the technology is similar to Vax / Dirt Devil / Hoover USA implementations. Hopefully trying to avoid infringing anyone's patents in the process!

Re: New UK Hoover ranges at www.argos.co.uk
#5   Aug 15, 2008 8:26 pm
DysonInventsBig wrote:

Trilobite,

Did Hoover invent a new technology or just a word - "Airvolution"?        DIB

That's the thing (good grief - my text has shrunk!), I don't know if Hoover have invented it themselves, or if they are using it under licence from a patent holder (like the 'Triple Vortex Technology' was licenced by BHR Group, for the illegal Dyson copy). Certainly, there are a couple of companies that use the  'Airvolution' trademark, one makes ventilation equipment that is supposedly quiet but efficient.

I was wondering if the 'AirVolution' technology really meant that the motor has a superior fan design?

VENSON: I was under the impression that the 'Freedom' was actually lighter than the 'Slalom'! The Argos catalogue has the 'Freedom' at 6.1kg (13lbs), and the 'Slalom' at 7.2kg (15lbs).

Never trust mickey mouse catalogues!

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