On 16/11/2010 18:13, Michael Watterson wrote:
>    On 16/11/2010 18:01, Brooke Clarke wrote:
>> Hi:
>>
>> Sir James Dyson explains his bladeless fan
>> http://www.youtube.com/watch?v=3D8he8afjQyd8&NR=3D1
>>
>> Patents:
>> http://www.google.com/patents/about?id=3DdyrJAAAAEBAJ&dq=3DD602143
>> http://www.google.com/patents/about?id=3DXyW0AAAAEBAJ&dq=3D12/203,698
>>
>> It turns out that they also make high end vacuum cleaners and I expect
>> that the motor/impeller assembly in the fan is from one of the vacuum
>> cleaners.
>>
> That would seem unlikely. I have one of the vacuum cleaners. It was
> overpriced, but more point to it than the fan. I can't imagine the fan
> using much in common. The Cleaner has a much higher power motor that
> would make any sense in a fan. A specially shaped spinning cone is a
> major aspect of the cleaner.

I have a couple of them here too, overpriced indeed but pretty good as=20
far as convenience and cleaning power go (according to the lady who=20
cleans for us, she prefers them to the Hoover we used to have apart from=20
the extra weight - they are quite heavy)
The main feature that sold them IIRC (apart from the added suction and=20
less chance of blockage due to the Dyson suction system) when they came=20
out was that they are "bagless", so you just unclip the chamber and=20
empty that rather than having to mess around with paper bags.
The fans seem more of a gimmicky thing compared to the vacuum cleaners=20
(no research to back this up, just a thought - have not actually checked=20
the fans out yet, so I *may* be doing them a disservice) as (IMHO) the=20
technology probably benefits them more than a simple fan.
The price does seem ridiculous also - how hard is it to move a bit of=20
air from a to b? (and what's the big deal about "smoother" airflow=20
anyway?) For that kind of money you might expect some nubile young lady=20
to fan you with palm leaves..
Sure that won't stop some people from rushing out and buying them though=20
- in fact it will probably encourage them...  :-)

--=20
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