Security pins ?New style?

[Raymond]

That is interesting about the ASSA. I have never noticed that variation before.

I was suggesting modifying the top pin holes so that the tapered top pin would spring down and be stopped by the taper against the wall of the hole in the plug and not when it actually touched the bottom pin. To do this the top pin must be larger than the bottom pin holes. This might confuse bumping also as there might be a very small gap between the top and bottom pin.

[CompFX]

Master Lock as well. Take a look in this months edition to Keynotes. Page 12, 2nd colomn, bottom half.

The problem they encountered was that after extended use the top pin started to oval out the plug hole and eventually just using torque would pop the lock open.

But Masterlock did come up with a different version based on the same idea. These new locks should be hitting the shelves this month and by October all masters should incorperate this new pin design. Guess it is suppose to be 99.99% bump resistant and if bumped, or attempted to be bumped it will scar the plug/shell walls showing proof of bumping. I dont remember it mention anything about picking it though.

CompFX

[davou]

This made me think of a question.... How much force can the pins tolerate?

What I mean is... How much torquing force would it take to physically snap the pins and create a new shear line? Or at least bend them out of shape and drag them (very forcibly) along the inside of the cylinder/outside of the plug?

Would tapering the pins in this way reduce the amount of force it would take to forcibly open the lock with a torquing tool?

[UWSDWF]

not really... I'd imagine the pins would warp and there fore fudge the lock before thaey'd snap... and even then if they would snap the amount of strengh and torque to do so is unfathomable... like close to impossible