SPIRALLY WOUND COILS

[ivconic]

Ivconic
How did you find that ? without the patent number ?
I did exhaustive googleing and nothing came up with the word Detech
any chance you can find the latest application by David Emery on his new PI front end ? thanks.

Is this what you are interested about?
http://patents.justia.com/patent/20090045813
https://www.google.com/patents/US7710118

Probably not? I cant find anything else on similar subject.

[6666]

Is this what you are interested about?
http://patents.justia.com/patent/20090045813
https://www.google.com/patents/US7710118

Probably not? I cant find anything else on similar subject.

Hi thanks for looking ,its been in just the last 12 months that he has invented a new PI front end, I have been looking but cannot find anything to do with a patent.

[geoscash1]

Is this what they are referring to as a "spirally wound" coil or something similar???

[Carl-NC]

Is this what they are referring to as a "spirally wound" coil or something similar???

[ATTACH]39348[/ATTACH]

No, that's a solenoidal coil. Spiral coils are flat, think of an old-style stovetop coil. Here's a Tesoro printed spiral coil:



Gary (aka Chemelec) has posted extensively on spiral-wound coils, you can do search and see some pics.

[ivconic]

From patent:

[Nexus]

Coils manufactured in this way would achieve lowest possible parasitic capacitance, but will loose some loop cohesion that will result in lower output power and lower RX end due to lower Q. It is trading one evil for another.
In the Induction Balance detectors these kind of coils can contribute nothing to performance, but only easy automatic manufacturing process.

I have experimented with a great variety of RX and TX loops and every single time when the loops get out of the highest Q for the given amount of turns the coils exhibit lesser performance capabilities.

[Sean_Goddard]

Това е деликатен въпрос.


This business unfortunately revolves around deception and manipulation more than any other, because there is very little (if anything) in terms of performance that is delivered and so much more that is claimed."

Sounds like you are talking about banking there too!

[godigit1]

From patent:

[ATTACH]39361[/ATTACH]

I know this is a old thread but looking at this coil it looks like its a Double OO type coil I dont see individual Tx And Rx windings.
It looks like the windings stack and have one continuous wire.
Thanks to anyone who might still be looking in on this thread.

[godigit1]

looking closer it must just be a artists conception of the coil.
Please disregard..

[kt315]

NEW TECHNOLOGY - SPIRALLY WOUND COILS - PATENT OF DETECH
SUPREME SENSITIVITY TO SMALL GOLD NUGGETS AND EXTREME DEPTH OF
DETECTION FOR BIG TARGETS
ULTIMATE DESIGN. RIBBED HOUSING - MADE FROM ENFORCED POLYMER WITH
MAXIMUM UV PROTECTION
WONDERFUL GROUND BALANCE
EXCELLENT DISCRIMINATION
EXTREMELY STABLE OPERATION

and Secret Space Program Whistleblowers Claim We Have Technology 1000 Years Ahead of Anything You See
but we have whole that now

bla bla

[kt315]

https://www.youtube.com/watch?v=1JeeaZlYonc

[kt315]

https://www.youtube.com/watch?v=VBrx4O10XkI