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AR-15 Barrel Fluting - Pic.

Boltfluter

Boltfluter

Gunny Sergeant
Banned !
Full Member
Minuteman
Jan 4, 2012
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Haines, Oregon
Hey Guys,

After several requests, I have decided to offer barrel fluting for all you AR-15 fans out there. Here is one I just finished. Any questions just pm me. Thanks for looking. Regards, Paul.
cool.gif



miscpictures083.jpg
 
Re: AR-15 Barrel Fluting - Pic.

Anyone looking to have this done should check him out. He was very friendly and interested in exactly what I wanted. He even called me the day he was machining my barrel to double check. Very reasonably priced I thought for doing custom work also
 
Re: AR-15 Barrel Fluting - Pic.

Dang wish you would have posted a week ago just sent mine off!!
 
Re: AR-15 Barrel Fluting - Pic.

That is good looking work!

Whats the average weight saved per inch you're seeing?

This question is purely academic. Just wondering how it compares to the dimpling I had done
 
Re: AR-15 Barrel Fluting - Pic.

185.00+22.00 shipping & insurance. About 1oz. Per inch for weight savings.
More options will be added to the website shortly.

Thanks, Paul.
 
Re: AR-15 Barrel Fluting - Pic.

I just recieved my barel back. The fluting is perfect. Very good guy to deal with also.
 
Re: AR-15 Barrel Fluting - Pic.

Wow...I'm a Machinist "in Training" and thats just Pornographic! Crazy thing an AR is my next project. You will be hearing from me!
 
Re: AR-15 Barrel Fluting - Pic.

Clay,

Glad to hear you are happy with the work. Clay's barrel is the one pictured.
smile.gif
Regards, Paul.
 
Re: AR-15 Barrel Fluting - Pic.

Not to piss on your work as it looks very nice indeed but I don't know if you were aware that any form of spiral fluting on a barrel is in direct violation of the US Patents held by ER Shaw? I have no connection with Shaw other than being a previous industry customer and good friend of one of the principals.

If you contact them, I am certain they will work with you regarding licensing (for an exceptionally fair price) on the spiral fluting. Talked with them at SHOT '12 and I was given to understand they intend to more aggressively defend their patents. Like I say, not taking anything away from your work and just trying to give you a heads up before you get a cease and desist letter or something from their attorney.
 
Re: AR-15 Barrel Fluting - Pic.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: the gman</div><div class="ubbcode-body">Not to piss on your work as it looks very nice indeed but I don't know if you were aware that any form of spiral fluting on a barrel is in direct violation of the US Patents held by ER Shaw? I have no connection with Shaw other than being a previous industry customer and good friend of one of the principals.

If you contact them, I am certain they will work with you regarding licensing (for an exceptionally fair price) on the spiral fluting. Talked with them at SHOT '12 and I was given to understand they intend to more aggressively defend their patents. Like I say, not taking anything away from your work and just trying to give you a heads up before you get a cease and desist letter or something from their attorney. </div></div>

Gman, is one of the principals Thomas W. Saur? the inventor of spiral fluting?lol, please....
 
Re: AR-15 Barrel Fluting - Pic.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: spiralseal</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: the gman</div><div class="ubbcode-body">Not to piss on your work as it looks very nice indeed but I don't know if you were aware that any form of spiral fluting on a barrel is in direct violation of the US Patents held by ER Shaw? I have no connection with Shaw other than being a previous industry customer and good friend of one of the principals.

If you contact them, I am certain they will work with you regarding licensing (for an exceptionally fair price) on the spiral fluting. Talked with them at SHOT '12 and I was given to understand they intend to more aggressively defend their patents. Like I say, not taking anything away from your work and just trying to give you a heads up before you get a cease and desist letter or something from their attorney. </div></div>

Gman, is one of the principals Thomas W. Saur? the inventor of spiral fluting?lol, please....
</div></div>

I had forgotten that is was Shaw that received a patent on spiral/helical fluting. And in the words of Madeline Kahn, "It's twue, it's twue!!!".

http://www.ershawbarrels.com/scb-fluted-barrels.php

What I didn't forget was that someone ought to be gutted like a fish for authorizing said patent.
 
Re: AR-15 Barrel Fluting - Pic.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DavidAR10</div><div class="ubbcode-body">
http://www.ershawbarrels.com/scb-fluted-barrels.php

What I didn't forget was that someone ought to be gutted like a fish for authorizing said patent.
</div></div>

It's a design patent, not a utility patent. That means the patent was awarded as being a unique ornamental design, not a new functional design like with utility patents, and was examined differently.

On the positive side, it's term is shorter than a utility patent, so it expires in June 2014. Plus, they've filed utility patents on certain helical fluting configurations, which can suggest that a design patent to the same/similar features is invalid as having utilitarian function rather than being purely ornamental.

That said, this isn't legal advice - proceed at your own risk.

John
 
Re: AR-15 Barrel Fluting - Pic.

It seems to me either way that the E.R. Shaw patent specifies that the number of external grooves equals the number of internal grooves (Ref. 6324780). Now, if you had 5 lands and grooves rifle barrel and put six flutes in it, it seems that their patent would not be controlling over your work. Just my 2c...real test would be to figure that with a patent attorney.

--Wintermute
 
Re: AR-15 Barrel Fluting - Pic.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jhnmdahl</div><div class="ubbcode-body">Yeah, that's the utility patent, and it's pretty narrow. The broader design patent is:

http://www.google.com/search?tbo=p&tbm=pts&hl=en&q=patent:D426611&num=10

John </div></div>

Heck, I think that one would be easier to fight. Since it's entire design basis is on the drawings provided, the number of flutes in the drawing are specific as is the degree of rotation, flutes starting and stopping styles, etc... This is also something I think I'd look at with a good patent attorney. The drawings also don't clearly show variant styles of stops and starts on the flutes (eg. flutes with straight starts/stops or other variations) and they don't show multiple fluted sections (like the AR15 barrel Paul did...fluted, then not fluted, then fluted again).

--Wintermute
 
Re: AR-15 Barrel Fluting - Pic.

very nice ,twisted at best!
 
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