Ron Lake vine called "the father of modern folding knives" and was co-author of the 1988 book How To Make Folding Knives

But while Ron is busy building awesome custom closers in his shop in Eugene, Oregon, he always thinks.
In this case he perfected the lockable Lock Back. Ron 's most important innovation is the Lock Back Safety (LBS ™) patent which allows the user to slide the small LBS button forward to lock the blade both in the open and closed position.
For those worried about accidental opening, in their pocket or belt, they can simply slide the lever to lock the knife until the next use.