Lever link mechanism for a folding knife

A mechanism to fold and unfold a knife about a main pivot upon the introduction of momentum from a single-handed action of a user comprising:

• a blade having a blade tang,
• a handle assembly having two handles and two bolsters,
• two liners to frame the handle assembly and the blade of the knife,
• a lever pivotally attached to the handle assembly and the lever having two lever grips,
• a catch interposed between the lever grips and the liners to engage a catch recess within the lever grips,
• a link arm linking the lever to an oscillating pin by a pivot,
• the oscillating pin disposed to travel within two liner guide channels and a blade tang guide channel upon the introduction of the single-handed action of the user,
• each liner guide channel terminates with two liner guide lock grooves,
• the blade tang guide channel terminates with two blade tang lock grooves,
• the oscillating pin disposed to lock into two of the four liner guide lock grooves and into one of the two blade tang lock grooves when the blade is folded and unfolded,
• wherein the single-handed action of the user pivots the lever away from the handle which in turn pivots the pivot of the link arm thereby disengaging the oscillating pin from the blade tang lock grooves and liner guide lock grooves,
• once disengaged the oscillating pin follows the momentum of the single action to travel within the two liner guide channels and the blade tang guide channel until the oscillating pin is stopped and locked into two of the four liner guide lock grooves and into one of the two blade tang lock grooves after which the blade is again folded or unfolded,
• the blade tang and the lever interface when the blade is folded or unfolded to give structural support between the lever and the blade tang,
• the liners further framing the main pivot, the liner guide channels, the liner guide lock grooves, and the catch recess.