fact ! we are all here to find a F E device and make it runing ! so... :

[Honk]

I don't think you have really performed any patent applications yourself.
Your are still just leading people into misconceptions about the patent process.

Myself I have at least one invention that was granted a patent.
It was simply a shielding box made of aluminum to minimize the magnetic radiation
from a high frequency and high voltage Backlight inverter, used in LCD displays.
I can tell you that I did not have to show the patent office any box or working unit.
I just sent in the drawings along with the applictions forms.
Voila, 1 year later, Patent granted. No questions asked, No device shown. Period.

And this is everyday practice. There is no need for a working device.
When an idea of a new invention is discovered then there is no time to loose by building it.
If this was the case, then others could outrun you in the race to finish a working device.
Fortunately the patent offices don't require this anymore, perhaps in the old days, but not nowadays.

This topic have been discussed before here at OU forum.
And other people with real knowledge about the patent process will tell you the same thing. Period.

[Koen1]

Ok, if you say so...

But then what happens if the invention turns out not to work?

And are you talking US patents, EU patents, or International patents here?
I do know that the scope for patents is much wider in the US than it is in the EU...

Perhaps in the US you don't need proof, but in the EU or certain EU countries you do?

Seems to me that a patent without any proof is much like a prospectus without a product...

[Honk]

But then what happens if the invention turns out not to work?

Nothing, nobody cares, there is no follow-up. The idea is forgotten and buried.

And are you talking US patents, EU patents, or International patents here?
I do know that the scope for patents is much wider in the US than it is in the EU...

There might be countries or cases that require closer examination, if they have the time....
But it's not really a physical thing you patent, it's the rights to an idea.

Perhaps in the US you don't need proof, but in the EU or certain EU countries you do?

I live in Sweden. No need to show any "hardware" here.

Seems to me that a patent without any proof is much like a prospectus without a product...

Just like an idea. Most ideas stay ideas and never get actualised.
But if you have the rights to an idea then you can demand royalities if someone wants to use it.

[z_p_e]

Oh, and @ z_p_e: your explanation sounds correct... However, if he's powering a 110V AC bulb, then not only does it mean he is upping the voltage from 12V to 110V, nearly 10 times as high, which according to normal transformer rules means the 12V input DC should increase almost 10 times in amperage, like you have stated, BUT
will a 110V AC bulb light up continually if no AC is put in?
will the bulb emit light when powered off 110V DC pulses, in the same way as it would when powered off 110V AC ?
I don't think so...
Now I don't know if Mehmets bulb actually does light up just like it would when hooked into a 110V AC feed,
but if it does, I would assume it wasn't DC pulses powering it...??

Koen,

How well a bulb lights has nothing to do with whether it is an AC or DC source powering it. The "perceived quality" of the light may be different (AC flickering for example), but the effective radiated light is dependent only on RMS power dissipated in the bulb. You can have equal RMS power in a bulb whether it is sine wave, square wave, pulsed DC, or pure DC....it does not matter one bit. All that matters in regards to heating elements and bulbs (a form of heating element) is RMS power.

Less RMS power = less radiated light or heat. Simple as that.

There is no such thing as an AC or DC bulb. They will all work with both if they are incandescents. Just do not exceed the RMS power rating.

[supersam]

@mem,

i wish i could show you my system, i have a system running on a regular automotive 12v dc battery that is providing all of my lighting needs, runs my refridgerator, while at the same time, provide different power for several different voltages for electronic divices i use daily, from 4.5 volts dc all the way up to my 120vac, television!!! all this and it can still provide power for my drill, and saw simutaniously!!!  so never stop dreaming.  how about a schematic of your home device.  my system uses all off the shelf products, and once you understand ohms law you too can do all of these seemingly miraculous things really very easily.

lol
sam