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				Polywell pat application 20110170647 - prosecution documents
				Posted: Thu Jul 21, 2011 10:23 am
				by chrismb
				
			 
			
					
				Re: Polywell pat application 20110170647 - prosecution docum
				Posted: Thu Jul 21, 2011 10:45 am
				by Joseph Chikva
				Motivation for said inclusion derives from Morozov: “By introducing the mantle into plasma configuration, we stopped the gaps and general knowledge: “Since it was always known that conformal magnet coil cans/casings were the only way to avoid B field intersect with their surfaces”
Here a lttle about Morozov (in Russian but everybody who has Google translator can readit):
http://w3.mirea.ru/science/priority/plazm.html 
			 
			
					
				
				Posted: Thu Jul 21, 2011 5:34 pm
				by rcain
				Thanks Chris - these appear to cover 2007-2009 - did you not suggest there was something more recent than this? (or just the availability is new?)
i see a lot of objections on grounds of lack of demonstrated 'means', utility' etc. can someone remind me of the final state of play - does the application remain 'withdrawn'?
			 
			
					
				
				Posted: Thu Jul 21, 2011 5:41 pm
				by chrismb
				This patent has only just been published (last week) and its status is currently that EMC2 are still in the process of appealing its rejection (as per the 'appeal brief'). Patent applications take that long, sometimes...
			 
			
					
				Re: Polywell pat application 20110170647 - prosecution docum
				Posted: Thu Jul 21, 2011 5:41 pm
				by rcain
				Joseph Chikva wrote:Motivation for said inclusion derives from Morozov: “By introducing the mantle into plasma configuration, we stopped the gaps and general knowledge: “Since it was always known that conformal magnet coil cans/casings were the only way to avoid B field intersect with their surfaces”
Here a lttle about Morozov (in Russian but everybody who has Google translator can readit):
http://w3.mirea.ru/science/priority/plazm.html 
according to the responses from Nebel in 
http://filestore.crossedfields.com/2011 ... nfinal.pdf
the references to  Morozov's paper were largely inappropriate/based on wrong assumptions (eg: non local thermal equilibrium).
[edit]
http://w3.mirea.ru/science/priority/plazm.html looks quite interesting though, thanks[/edit]
 
			 
			
					
				
				Posted: Thu Jul 21, 2011 5:42 pm
				by rcain
				chrismb wrote:This patent has only just been published (last week) and its status is currently that EMC2 are still in the process of appealing its rejection (as per the 'appeal brief'). Patent applications take that long, sometimes...
Excellent, thanks, that clarifies.
 
			 
			
					
				Re: Polywell pat application 20110170647 - prosecution docum
				Posted: Thu Jul 21, 2011 7:34 pm
				by Joseph Chikva
				
As I have read in that Russian site, there is talk about confinement of thermal plasma.
It is interesting for me how Nebel explains the difference.
In which page he says about "non local thermal equilibrium"?
 
			 
			
					
				
				Posted: Thu Jul 21, 2011 8:28 pm
				by rcain
				page 17
			 
			
					
				Thanks!
				Posted: Thu Jul 21, 2011 9:11 pm
				by Tom DeGisi
				Thanks, chrismb!
			 
			
					
				
				Posted: Fri Jul 22, 2011 12:24 am
				by rjaypeters
				chrismb, Thanks!
Is it just me, or is the patent examiner really stubborn?  Or was I scanning too fast?
			 
			
					
				
				Posted: Fri Jul 22, 2011 6:33 am
				by choff
				My reading of the exchange is that the examiner believes the plasma is thermal, and the magnets won't be able to contain it, and the connectors will melt from lack of magnetic shielding, the device will explode if it contains the energy described, and the WB6 results were from "cross talk", arching, cosmic rays, etc.  In the end they say it won't work because practical fusion is 50 years away, they sound like the DOE guys Bussard was trying to avoid.
			 
			
					
				
				Posted: Fri Jul 22, 2011 7:11 am
				by Giorgio
				rjaypeters wrote:chrismb, Thanks!
Is it just me, or is the patent examiner really stubborn?
More than stubborn I'll say a real pain in the ass....
 
			 
			
					
				
				Posted: Fri Jul 22, 2011 7:53 am
				by Joseph Chikva
				rcain wrote:page 17
Thanks, but there is only 13 pages.
 
			 
			
					
				
				Posted: Fri Jul 22, 2011 7:59 am
				by Joseph Chikva
				choff wrote:My reading of the exchange is that the examiner believes the plasma is thermal,...
Are sure that plasma in Polywell is not "thermal"?
If each scattering event will decline particle into random direction and there are no any forces for returning them back.
 
			 
			
					
				
				Posted: Fri Jul 22, 2011 8:33 am
				by Giorgio
				Joseph Chikva wrote:choff wrote:My reading of the exchange is that the examiner believes the plasma is thermal,...
Are sure that plasma in Polywell is not "thermal"?
If each scattering event will decline particle into random direction and there are no any forces for returning them back.
 
Of course, collision and instabilities tend to make the plasma thermal. Bussard worked on this issue and designed the Polywell with the idea of solving exactly this issue.
In the Polywell core the ions have their maximum speed (and lowest cross section), so the possibility of thermalizing collision is at its lowest.
On the edges the ions are at their lowest speed and even if some thermalizing collision occurs it has no impact on the core of the reactor (where the high speed of ions tends to favour fusion collisions).