Re: inflatable torroid

To: tesla-at-pupman-dot-com
Subject: Re: inflatable torroid
From: "Alex Crow" <user-at-alexcrow.clara-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Sun, 25 Jul 1999 17:47:40 -0600
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

PS I then thought you wouldn't need to glue at all. You could just sew a
'sock' of metal fabric around the innertube and then when you deflate it it
would simply lie loosely around the inner. On inflation it would be
stretched out to its full size and form a lovely smooth surface. I am now
browsing the website of 'Cascade Coil Drapery' - looks like they have some
variety of fabrics here.

Alex Crow


----------
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com
Subject: Re: inflatable torroid
Date: 25 July 1999 02:52

Original Poster: "Jeff Corr" <corr-at-enid-dot-com> 

What a neat idea!  A kid's inner tube at Kmart is about 20-25" in diamter
and would work very well.  I might have to try that.  Any word on the paint
eating through the rubber surface?


-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Saturday, July 24, 1999 3:22 PM
Subject: Re: inflatable torroid


>Original Poster: "Alex Crow" <user-at-alexcrow.clara-dot-net>
>
>I was thinking of large inner-tubes as a possibility. You could spray
>conductive paint onto the surface of the tube and if this didn't crack
when
>it dried it should work OK. Some people I think have had success with foam
>toroids coated with graphite or similar.. so this should be possible.
>However inner-tubes are now rare of course - perhaps kid's inflatable
rings
>might be an alternative, or a cheap inner from a fishing float-tube. If
>paint doesn't work, I would think that you could glue on coarse
>aluminium/copper powder or particles.
>
>Alex Crow
>
>
>----------
>From: Tesla List <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: inflatable torroid
>Date: 24 July 1999 01:10
>
>Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
>Hi All,
>
> I was wondering about a torroid made from metalized mylar or some other
>inflatable metal coated plastic.  The home center store as heating duct
>that looks like it is some thin plastic coated with aluminum and supported
>by a spiral spring wire to give the tube shape.
>
> I was wondering if the thin metal over plastic coating would just burn
>away or if such tubing could be of use.  The pipe looks like it would be
>stronger than typical aluminum duct when it comes to getting banged
around.
>
> Also one should be able to make or find the materials to make an
>inflatable torroid out of metal coated plastic like those party balloons
>and some food products come in.  I wonder if it would have bad RF
>characteristics?
>
> I have never tried any of this but though I would see if anyone has only
>thoughts on this.  The big aluminum duct torroids can get smashed easily
>and they sure take up a lot of room (especially in the car).  An
inflatable
>version would sure be neat if it would work.
>
>Cheers,
>
> Terry
>
>
>
>