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Pulse Devil

A

Anonymous

Guest
OK here's the scoop on the Pulse Devil. There are actually two different designs. The first version is a PIB or Pulse Induction Balance. This version requires a balanced coil such as a coaxial or a dual D. It does however have a full range of discrimination. The PIB was invented over twenty years ago by Eric foster. Eric sold a detector called the PPD1. The Pulse Devil PIB takes advantage of various techniques I have developed which provide excellent depth, ground canceling, and discrimination. It is possible using these techniques to incorporate a target ID and even a notch filter. The Pulse Devil PIB uses a push button tuning system as well as motion circuitry.
The second design is the Pulse Devil Mono Coil Discriminator. As its name implies the detector is capable of working with a single winding coil. The mono disc has good iron rejection except on steel crown bottle caps and some very small objects. Overall the iron ID seems to be good to excellent.
The mono disc provides different tones which identify four different target groups. These are low, medium and high conductivity targets and of course iron. Examples of low conductivity items are a US 5C piece, (nickel) thin rings, and small gold nuggets. Medium conductivity items include copper coins, bronze coins, and clad coins. High conductivity items would include silver bars and coins, and of course aluminum beer cans.
OK, now we know what the pulse Devils are I guess you are all wondering if they are ever going to hit the market. The Pulse Devil project is now about three years old. It is very tough when one works a day job to get enough time to finish anything. To make things worse, I came up with the idea for the mono disc method and went off on a tangent from the PIB to see if it would work.
As it costs ten to fifteen thousand dollars to obtain just a US patent and tens of thousands for world wide patent protection I have decided to put the technology into the public domain. By describing how the mono disc works in a technical magazine article NOBODY can ever patent it.
The first prototypes are about ready to go. Eric Foster will be testing, improving, and if he feels the design is OK, will I imagine be building and selling them most likely with a new name. My thanks go to Eric Foster and also to Mark Pauls in Denmark for their substantial input on both designs.
 
I'm happy to see that Eric will be manufacturing them. Way to go Eric!
 
Hi Dave,
The pulse devil sounds like a very intersting machine.
Would you say that this detector would provide any noticeable improvements over the goldquest so far as it concerns nugget hunting? Or would you say its features more or less benefit the coin, relic and jewelry hunter?
Also, what will the cost be? I'm a bit new to this forum so this is the first I've heard of this detector. Thanks.
Ray
Reseda, CA
 
Thanks Dave for waking the "Devil" in us all,
and all the time you have spend on doing those designs.
Also thanks to Eric for sharing the PIB invention with us, and also for the best MD forum in the world, which makes this possible.
Mark
 
Hi Dave,
Do you have any timetable on when the article will be released?
Reg
 
Reg,
Its way to early to predict as Eric has not even got one to test yet. Who knows what awful bugs he may find in the design? At least when (if) it does come out you will have the benefit of Eric's experience behind it. All the best, Dave. * * *
 
Ray,
Way too early to tell. There is a lot of work and testing ahead before any of your questions can be answered.
 
it's always great to see when great detector design engineers work together to create better and better detector designs.
I do have a question about Public Domain. When this technology is placed in the Public Domain does that mean that anyone can build and sell detectors using that technology? Then to take it one step further...if someone builds upon and improves on that design but using the same base technological design will they be able to Patent thier design thereby preventing others from building detectors using that concept?
Thanks for letting us know what is happening with the Pulse Devils!!!!!!
Good Luck with the detectors!!!!!!
HH
Beachcomber
 
You are correct. Anyone can use the method freely. If they invent a patentable improvement then they can indeed patent it. This is unlikely as I will cover most areas of possible improvements in the write up. Patenting designs in an industry as tiny as metal detectors is hopelessly stupid. The only thing that costs more than obtaining a patent is taking someone who has infringed on it to court! You are then talking about spending hundreds of thousands of dollars.
 
Dave,
Will either of the machines have any sort of ground balancing?
Thanks, Tom
 
Tom,
Both detectors have very effective ground balancing controls. Both are designed for world wide use including Australia where the conditions are the worst on the planet.
 
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