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Spiral fluting is NOT allowed by barrel manufacturers

 
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  #15  
Old 06-21-2011, 12:44 PM
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Join Date: Nov 2007
Location: Texas
Posts: 275
Re: Spiral fluting is NOT allowed by barrel manufacturers

Really? Sounds like a load of scrap (pun intended) to me. I ordered straight flutes on a Broughton barrel, and they called me to ask if I was OK with getting spiral flutes instead, the operator hit the wrong program button on the machine and made it spiral instead of straight. Since I didn't want to wait for them to re-make the barrel, I said to bring it on.
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  #16  
Old 12-16-2012, 08:31 PM
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Join Date: Dec 2012
Posts: 5
Re: Spiral fluting is NOT allowed by barrel manufacturers

Quote:
Originally Posted by JPRITT View Post
I know what you mean. i wanted spiral flutes also but found out that E.R. Shaw thinks they are original. Some smiths will do it for you. Ask around. If anyone asks, tell em its a shaw barrel. Good thing Shaw didnt patten sprial flutes on bolts they would have made alot more money.


Carolina Custom Rifles, check them out for the spiral flutes!
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  #17  
Old 12-16-2012, 09:18 PM
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Join Date: Dec 2010
Posts: 37
Re: Spiral fluting is NOT allowed by barrel manufacturers

Or Lilja..
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  #18  
Old 12-16-2012, 09:24 PM
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Join Date: Dec 2010
Posts: 37
Re: Spiral fluting is NOT allowed by barrel manufacturers

Benchmark and Pac-Nor also sell fluted bbls.
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  #19  
Old 12-16-2012, 11:18 PM
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Re: Spiral fluting is NOT allowed by barrel manufacturers

I'm a lawyer AND an engineer.

As others have said, a patent is a limited monopoly for 17 years to sell a product. The patent office used to test most patent claims but their staff got slashed under Republican administrations and they reportedly no longer vet all claims in patents.

From an engineering point of view, a spiral-fluted barrel cannot be as stiff as a straight-fluted barrel, but the difference would likely be negligible. Flutes do speed barrel cooling by increasing the surface-area of the barrel. More narrow-deep flutes increase the surface area and speed cooling more than fewer shallow flutes.

Even if this patent wouldn't stand up to a challenge, it's still likely to keep SOME competitors from spiral-fluting barrels as some people are so afraid of being dragged into court they would never take a chance of winning the case.

I suspect the holder of this patent would never take someone to court for infringing on their patent because they are unlikely to win, and if they lose the case their patent would be gone. If they simply ignore the patent infringement, they still have a patent to scare SOME people away.
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  #20  
Old 12-16-2012, 11:29 PM
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Location: Longmont, Colorado
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Re: Spiral fluting is NOT allowed by barrel manufacturers

Quote:
Originally Posted by Buano View Post
I'm a lawyer AND an engineer.

As others have said, a patent is a limited monopoly for 17 years to sell a product. The patent office used to test most patent claims but their staff got slashed under Republican administrations and they reportedly no longer vet all claims in patents.

I have about 35 granted patents at this point, maybe more since I haven't checked lately, but I can tell you the above statement is simply not the case. There are tons of people working at the patent office, and they vet all claims. My last patent was around 600 pages long and they go through the whole thing and check all the claims - line by line.

If you have access, you can see the back and forth from the inventors and the patent office over various claims.

Sometimes we (researchers) complain that the patent office seems to grant too many, and claims that are too broad. But, as our chief counsel likes to say, "they are called the patent office, not the non-patent office", so they tend to err on the side of granting too much. They figure that it will work itself out in court.
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  #21  
Old 12-17-2012, 08:14 PM
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Join Date: Jan 2012
Location: Carlsbad, NM
Posts: 148
Re: Spiral fluting is NOT allowed by barrel manufacturers

Quote:
Originally Posted by ilscungilli View Post
They figure that it will work itself out in court.
While they do often work themselves out in court, even if it works out to the best, it's not before the lawyers get their pound of flesh.

Software and electronics patents, on the other hand, are simply out of control. Stuff with blazingly obvious prior art has been allowed. Derivative patents that prevent the original manufacturer of an item/program from ever improving. Suites of impenetrable patents that prevent anyone but the established players with their own counter-suite of patents from innovating and bringing product to market.

Intellectual property rights in the US are in bad need of reform.
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