ML patent Application

[Aziz]

Thanks Eric,

a magnificiant bypass solution.
Now split the solder joints once more and isolate them and the solder blobs get smaller.
So much for a patent application.

I like it.
Cheers,
Aziz

[Ferric Toes]

Pot Core response curves. 1.5Fe = 1.5mm D ferrous ball. B = Brass ball. This was looking through 20mm chipboard.

Eric.

[ODM]

For all the effort of doing a litz wire coil one would expect the same methodology to be carried throughout the cabling as well. Careful windings ending up with terminations into large terminals and/or large solid-core/solid-screen cables would sound self defeating in the first place, and on the bench, test setup parts like the cable and connections are a game-changer. No gator clips!

[Aziz]

Gentlemen - may I remind you that the Geotech forums are for discussions on "The Technology of Treasure Hunting", as it states quite clearly under the big Geotech logo at the top of the page?

They are NOT to be used for Minelab bashing, or for the bashing of any other metal detector company for that matter. I think everyone here (except those who are taking part in this nonsense) are thoroughly fed up with this continued rhetoric. Please cease, or I will start removing the offending posts. If you find it difficult to stop then take it elsewhere to one of the other forums where they tolerate this sort of behaviour.

I know that Carl suggested simply ignoring the arguments if you don't want to read them, but this could only be acceptable if it was kept to one particular area entitled [perhaps] "The Wingeing and Whining Thread", in the Off-Topic Forum. Unfortunately, this is not the case, and the same arguments keep appearing in some otherwise very interesting threads that eventually get dragged down into the gutter, consequently destroying any attempt at a sensible discussion.

So - come on guys - get your act together!

Yes Sir Mr. Q!,

I have taken my magic and multi-colored pills now.
Long live ML! We love ML! We love their detectors. We love their patents.
See the 5000 performing very well:
http://www.youtube.com/watch?feature...&v=h2XgiKNOKW4
Enough evidence?

My pills?, my pills!, my pills!, ... I need more pills...

Cheers,
Aziz

[Ferric Toes]

For all the effort of doing a litz wire coil one would expect the same methodology to be carried throughout the cabling as well. Careful windings ending up with terminations into large terminals and/or large solid-core/solid-screen cables would sound self defeating in the first place, and on the bench, test setup parts like the cable and connections are a game-changer. No gator clips!

Both coil and cable are Litz wire and that is what I used in post 90. Ideally you would want continuous insulated conductors between coil and cable, but there is no way of doing that without a soldered joint which breaks down the inter strand insulation at that point.

Eric.

[KahlesMilcon]

Eric,

Some sections of track are not owned by the train company that is pulling/pushing the cars., These type of train track sections get paid per car crossing. Each car has 4 wheels per side there fore every 4 wheels is a car. Sounds like the owner of the track section was confirming the car payment reimbursment system.

Do not ask how I know , It is just some trivia that I picked up from a small railroad company that owns a 50 mile section of track here in N.C.

[crane]

I wouldn't class a test site as being homogenous.

mickstv,
These test sites were chosen because the ground over the horizontal drill holes is uniform during each sweep. The surface also suffers excessive water flow that has removed all of the normal concentrates that cover the typical gold bearing ground away from the creek. The tests Doug refer to actually prove this ground is unsuitable because the tests show that "Sharp Timings" worked well at the test site but couldn't be used up the slope.

I initially tested Enhance and FG on a strip of ground that varies dramatically in Normal timings over approx 6 meters. Nuggets from sub gram to a few grams were buried at depths up to around 6". There was no way of knowing if the signals were from the ground or targets when using Normal timings but each target gave a definite "dig me" signal in Enhance and FG.
As I said before, why would anyone test these timings in uniform ground at these test sites when they are obviously only meant to be used in variable ground that is often covered with hot rocks?

[crane]

.... however excess metal must move against a coil to become detectable.

Boy aren't you in for a surprise.
This is best demonstrated with a ground balancing PI detector. Place the coil flat on the ground away from metal, then place a coin on the ground at a distance from the edge of the coil where it would be detected if moving. The coin will then give a response if you pass a soft ferrite rod over the coin even though the coil and coin are both stationary.

As said before, a coil containing excess metal will have you digging ghost signals in mineralised ground that don't exist if using a properly made coil.

[Davor]

OK, so it confirms that every day is just right to learn something new. There are a few if-thens in the example you are giving, so the key factor is still having a huge blob of solder somewhere in a middle of the coil, passing over a particularly distinct chunk of ferrite in the ground... OK, I got it.

[Ferric Toes]

There are always going to be hypothetical situations, but how often do they occur in the real world? I have placed a 1gm nugget under a lump of Oz ironstone and where the nugget is easily detected at a certain range. Remove the ironstone and the nugget can no longer be detected at the same range. They reason being that the highly susceptible ironstone distorts and concentrates the field from the coil so that the nugget has more induced signal. Also the return signal will be enhanced too. Does this happen frequently enough to matter?

Eric.

[Aziz]

And what are your achievements on this forum, Davor?

I can tell you that:
He is one of the key players here. Providing a lot of interesting ideas and solutions.

Ok, just one example for you:
The cross-balanced transmitter discussions led to three important inventions:
1. A high power VLF transmitter with the option to wideband frequency response
2. TEM V2.0 transmitter
3. Class-E TEM transmitter

2.+3. are one of the very very clever inventions (Am I smart or genius? Hell no!, it was merely a lucky finding. )

We praise Davor! Long live Davor! Absolutely free of greed and willing to share everything.
He is a very generous and integer gentleman.

But there are more contributions from him, I haven't mentioned yet.

Aziz

[WM6]

Minelab applies for solder joint with ferrite bead shield patent. Also reiterates the benefits of Litz wire coils. Good reading for coil experimenters, weather you agree or not with the system.

Probably better as a trade secret than a patent.

Good readings in other means too.

Worth to read very carefully all patents claims and its mutual implications.

Seems ML is trying to patent, not only pure existence of solder joint and pcboards in coil but metal detecting itself too.



Apart from that, they trying to patent widely used practice too:

http://www.kobakant.at/DIY/?cat=24

[Carl-NC]

I consider myself incredibly patient and lenient, but even I have limits, and some people just don't know when to stop. Our two primary antagonists are now on vacation.

[Altra]

I want to appolgize to the forum and its members for starting this thread.

I found the patent interesting in concept. Weather you agree with the legality
or premise of any patent. You have to know where we have been, to know
where you are going. Keep reinventing the Wheel.

To Carl, Eric and Davor who I have great respect. Sorry crap was flung in your
directions.

[Jerry]

I want to appolgize to the forum and its members for starting this thread.

I found the patent interesting in concept. Weather you agree with the legality
or premise of any patent. You have to know where we have been, to know
where you are going. Keep reinventing the Wheel.

To Carl, Eric and Davor who I have great respect. Sorry crap was flung in your
directions.

No need to apologize for bringing a new thread to the forum. You had no control on where others choose to take it. Found it interesting reading even though I did not have any information to add.

Jerry