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Spring assist locking knife

Joined:
2009/12/2 19:56
From SE Pa
Posts: 321
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I don't carry a firearm here in SEPA even thou I could, but do like a decent knife as I've had "events" with nasty dogs.

Anyways, I found out about this type of knife and replaced the "regular" lock-back I carry.

I keep it in a sheath fastened on my left suspender - it's out and open in 2 seconds; just a press of a forefinger and it swings open with no fumbling around.

I know switchblades are illegal but these are fine; I guess the mechanism design makes them different and OK legally.

Just though I'd pass it on.

Posted on: 2013/4/24 9:25


Re: Spring assist locking knife

Joined:
2007/3/27 9:18
From Benton, PA
Posts: 69
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Get youself a little pocket pistol (insert joke here) they shoot further than a knife and weigh about the same. Can get bird shot loads for snakes dogs etc. and do more to deter the bad guys. Caryy all the time as part of my fishing gear.

Posted on: 2013/4/24 9:36
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Re: Spring assist locking knife

Joined:
2007/4/8 20:43
From SEPA
Posts: 11294
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If the blade moves because of your finger, that's fine.

If the blade moves because your finger activates a spring, that's not fine.


The common Ken Onion designs used by Kershaw are 100% legal.
http://www.thekershawstore.com/Kershaw-SpeedSafe-Knives-s/5.htm


The designs such as those used by ProTech in their TR series is illegal to carry, but legal to collect.
http://www.protechknives.com/knives/s ... cal-response-2-knives.asp

The difference being in the Onion, your finger moves the blade and the cam assists it in popping open. In the ProTech, your finger pushes a button which frees the cam to operate on its own.

This applies to PA only. Other states have different laws.

Other options are gravity assist or flick knives where you press a release and then use your arm to flip the blade out.

If you choose to buy one, adjust teh clip so that you can draw and open in one movement, and pin the "safety" open.

If you're really afraid of dogs, buy pepper spray. If dogs are a euphanism for people, buy a gun, or pepper spray.

Posted on: 2013/4/24 9:48
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April 8, 2007 - December 4, 2011.
And why not?


Re: Spring assist locking knife

Joined:
2009/1/7 12:19
From Glenmoore PA
Posts: 548
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SOG Flash II is a fine knife. I have a Ken Onion knife, but prefer the SOG

Posted on: 2013/4/24 15:50


Re: Spring assist locking knife

Joined:
2010/6/23 12:43
From Hershey
Posts: 404
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Both SOG and Kershaw are fine blades. The Kershaw seems to sharpen more easily for me but I have them both. Guys who knwo the most about knives(not me) seem to sharpen them often.

Posted on: 2013/4/24 19:02


Re: Spring assist locking knife

Joined:
2009/1/7 12:19
From Glenmoore PA
Posts: 548
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I have the Kershaw scallion. Very hard steel and holds a nice edge. But the blade is thin. This is not a knife that should be used to pry, or be abused. The SOG can take more punishment.

Posted on: 2013/4/24 20:26


Re: Spring assist locking knife

Joined:
2008/6/8 19:45
From Pittsburgh
Posts: 1470
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All good suggestions above. I'll add that I have a soft spot for Benchmade knives. They have a spring assist opener and I like their Axis locking mechanism as opposed to a liner lock. Griptillians are good utility knives.

Posted on: 2013/4/24 20:41


Re: Spring assist locking knife

Joined:
2009/2/23 16:32
From Wrightsville
Posts: 268
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I have a soft spot for lock-blades that take an edge quickly. They're easy to touch-up and how often do you need an edge to last for a millenium.

I think most of the ceramic/"hard as diamond" knives are sold to people who never sharpen them.

Posted on: 2013/4/24 22:21


Re: Spring assist locking knife

Joined:
2008/6/8 19:45
From Pittsburgh
Posts: 1470
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Posted on: 2013/4/24 22:52


Re: Spring assist locking knife

Joined:
2009/4/21 16:39
From G-side AKA GLENSIDE
Posts: 690
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is there any size requirements on knifes? I have heard that if its the size of your palm it ok but is that really true. I to like to carry a knife when I fish in some areas of the city of brotherly love and have had an encounter where I was held up by what I assumed was a homeless guy. another angler helped me out by standing up for me. that being said I now carry a large knife with me it about 8 inches but the blade is 5. large knife no spring. its not concealed nor. I keep it in a sheath on my belt.

sometimes I feel a little like crocodile Dundee. haha

Posted on: 2013/4/24 22:55


Re: Spring assist locking knife

Joined:
2010/6/23 12:43
From Hershey
Posts: 404
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I know of no restrictions on blade length. Phila has many of it's own laws though so if you are there it could be a problem.

Posted on: 2013/4/25 6:27


Re: Spring assist locking knife

Joined:
2012/10/24 19:22
From Da 'Berg, PA
Posts: 1459
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my wife was told on her self defense course to carry wasp spray.

spray in the face and they are temporarily blinded and need a medical eye wash. after the wash their sight returns in about 30 minutes.

the small cans have a range of about 10-12 feet.

cheaper than pepper spray.

Posted on: 2013/4/25 18:44
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Re: Spring assist locking knife

Joined:
2009/10/15 13:45
From Eastern PA
Posts: 10290
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Isn't it absurd that spring loaded knives are illegal in PA? Next thing you know the will ban corner doo-wop groups from corners citing they are gangs. switchbladeslol.

If I were not going to carry a gun, I agree that the various sprays would be the way to go. When an assailant is within stabbing distance, they are way too close to begin with imo.

Posted on: 2013/4/26 9:43


Re: Spring assist locking knife

Joined:
2008/1/31 17:19
From Pretty much everywhere at some point, Thorndale today.
Posts: 13423
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Quote:
Both SOG and Kershaw are fine blades. The Kershaw seems to sharpen more easily for me but I have them both. Guys who knwo the most about knives(not me) seem to sharpen them often.


I can tell you that Kershaw uses multiple blade steels, as do most knife companies.

Someone mentioned a Kershaw Scallion, I believe, which uses 420HC. This is a "medium" grade steel. Very common, not anything special, but a pretty decent blade steel. Certainly a fair step up from the $30 kitchen knife sets and so forth (those are usually 440A or 440B). Buck knives use an awful lot 420HC. It's kind of a standard in the "nice, but not super" blade steel market. It's not top of the line, but put that steel on an otherwise well designed knife, and it'll do everything 95% of the population ever needs from their knives, and do it well.

The ability to sharpen a knife to "scary" sharp has more to do with the processing of the steel, rather than the chemistry of the steel itself. The really high end steels are often made via powder metallurgy. My company (branded CTS for knife steels) makes a few grades via powder (examples are CTS-20CP, CTS-XHP). Crucible (CPM) is a big player. CPM-S30V is a popular one, and CPM-S90V is a step above in performance (and a step below in how easy it is to work with for the knife maker).

There is generally an inverse relationship between the ability to hold an edge, and how easy it is to sharpen. It's not a perfect correlation, though, it is possible for a really good steel to buck the trend and hold and edge well AND be able to be sharpened relatively easily. But overall, it's a trade off. Higher carbon, and especially vanadium, lead to better edge holding ability. But to get that, you lose something in toughness (easier to break the blade), it's harder to sharpen, and likely less stainless as well.

And then there are "working edge" vs. scary sharp edges. What you call "sharp" very much depends your definition of "sharp." Are you satisfied if it can gut a deer well enough? Or do you want to whittle hair? But there are blades which lose the scary sharp edge quickly, but hold a good working edge for a long time. Others hold a scary sharp edge for longer, but once they start dulling they get dull real quick. This kind of thing has more to do with the blade profile than the steel itself. So it's well out of my realm of expertise, I'm not a knife maker.

Posted on: 2013/4/26 11:09

Edited by pcray1231 on 2013/4/26 11:40:38


Re: Spring assist locking knife

Joined:
2008/1/31 17:19
From Pretty much everywhere at some point, Thorndale today.
Posts: 13423
Offline
And regarding the laws, statewide it is illegal to carry any knife that is "assisted opening". They define it as switch, push button, spring mechanism, or OTHER mechanism.

There was a case on gravity assist knives, which were deemed legal. There is no "limit" on blade length, but the knife has to have a "lawful purpose" (other than as an offensive weapon) and there have been cases where people have been charged for carrying huge blades that were deemed to have "no lawful purpose."

Also illegal to carry sandbags or stun guns in PA.

Further, those are STATE laws. Counties and municipalities often have their own, more restrictive, laws. For instance, in Philadelphia, it is illegal to carry a knife PERIOD, even a tiny little pocket knife or multi-tool. There is supposedly an exception for those that have to carry them for work purposes, but there's nothing in place to prove or disprove you have it for work purposes. So likely to be a high degree of discretion used by law enforcement and the legal world on this.

As many say, if protection is the purpose, the legalities are such that it is far easier to carry a gun than a knife. Of course, a knife has so many other purposes beyond protection.

Posted on: 2013/4/26 14:35



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