Re: A Way to Use Bare Wire on a Toroid

On Wed, 02 May 2007 16:55:55 GMT, Robert Baer
<robertbaer@xxxxxxxxxxxxx> wrote:

D from BC wrote:
On Wed, 02 May 2007 07:14:23 GMT, Robert Baer
<robertbaer@xxxxxxxxxxxxx> wrote:


Martin Riddle wrote:

"John Larkin" <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:m54f33d1v9h568a36u5cupt1fr5cdnchfd@xxxxxxxxxx


On Tue, 01 May 2007 18:46:07 GMT, D from BC <myrealaddress@xxxxxxxxx>
wrote:



I got a chuckle when I saw this..

Wire guides on a toroid..
Patent 4975672
http://www.google.com/patents?id=hIcoAAAAEBAJ&dq=4975672
D from BC

OMG, NASA wastes our tax dollars again. This is *radically* stupid.

John





McLynm or whatever is the author of a few books on magnetics. Sort of
cookbookish.

Cheers



1) You are a little late to be harping; the date of the patent is 1990.
2) *NOTHING* in the claims states bare wire; in fact it eXplicity (ie:
X-rated) states *Litz* wire.
3) Learn how to read.


I didn't the read patent. :)
Patents often have that pseudo english patentese that I don't like
reading.
What?? No claim of using bare wire in the patent???. :)
I just looked at the diagram and used my imagination...
The wire guide really looks useful to keep windings from shorting out
with bare wire..
Litz wire makes sense for HF use.
D from BC
Yea; the guide idea *seems* good, but the expense of making guide
grooves methinks exceeds the expense of putting insulation (eg: enamel
or polyurethane) on wire.

The worst is the CAD time to make the guide.
D from BC
.

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