h a l f b a k e r yAssume a hemispherical cow.
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This is a vacuum cleaner that detects clogs in the line and blasts them
with subsonic sound waves to loosen 'em up and clear 'em out. At the
same time, a shutter valve rapidly blocks and unblocks the end of the
tube at a rate of 8 frames per second to create a wavering pressure to
assist in loosening
the
clog.
Subwoofer Air Cleaner
http://www.halfbake...fer_20Air_20Cleaner Related Idea [csea, Sep 22 2009]
[link]
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Will it detect/loosen shoes as well? |
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I have subsequently surmised that the dust is collected by the dc component provided by the amplifier cooling fan. |
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Nice, Chuck! Read and bunned. Copro... good one. That took me
a while. |
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I don't know about this. My shopvacs get clogs like you wouldn't believe. Poking at them with a stick is the only way I'm afraid. I'm talking rockhard clogs, huge basterds. |
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Have you tried putting the hose near a subwoofer and clamping
your hand over the nozzle in a shutter motion a few times?
Works pretty good on my Eureka upright. |
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Don't have a subwoofer, but I'll try if I get the chance. |
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I usually deploy an extended wire coat-hanger to unblock
mine, but I really like the idea of a hoover with a built in
sub-woofer. + |
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That's a reason to add a croissant if ever there was one. |
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I'm with [bigsleep] - it should be renamed the "didger-I'd-rather-you-didn't" |
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I like the idea. Perhaps the shutter valve would be more efficient between the tube and the cleaner, opening and closing a link to the open air. In a well-and-truly clogged tube, there is no suction on the tube end anymore, so opening/closing that part will make no difference.
Also: ~20Hz would fit nicely into my ambient music. |
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I kept reading the last line as 'loosening the dog' which gave me all kinds of horrible images about vacuums, pets, and the brown note. |
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^ Reminds me of what happened with my thermite rocket plunger and
the toilet dogs. |
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Anyway, I'll have to try the op en-an d-clo se-th e-ho se-ne ar-a-su bwoofer
method sometime. At Protospace, we have several vacuum cleaners
whose hoses sometimes get clogged, as well as some reasonably
powerful subwoofers. Is a frequency sweep a good idea? |
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