A folding knife has an elongated frame defining a major plane and having a pivot element at a pivot end and defining a pivot axis and the frame defining a blade receptacle, an elongated blade occupying the major plane having a tip end and a base end, a spine edge and a cutting edge, and opposed major faces, the base end connected to the pivot element, the blade being operable to pivot between a stowed position in which the blade is received in the blade receptacle and an extended position in which the tip end of the blade extends away from the frame, and the blade having a lock feature proximate the base end, a button lock element connected to the frame proximate the pivot element and operable to selectably engage the lock feature when the blade is in the extended position.

Systems, methods, and apparatus are described for a locking folding knife having a handle lock and a safety switch arranged around and rotatable around a pivot axis of the knife. In an engaged position the switch overlaps at least a portion of the handle lock and prevents it from moving into an unlocked position. A spring, such as a wire form spring, can be arranged within a pocket of the switch, and when the switch is moved between engaged and disengaged positions the spring can be compressed generating a rotational bias on the switch urging the switch toward either the engaged or disengaged position.

This invention is directed toward a versatile, low profile pocket tool. The pocket tool contains only a single backing plate and can be made without using any screws, pins, or other fasteners. In that way, the implements can easily be removed and interchanged. The stability of the pocket tool is gained by using an tabs that interlock around a track on the implement. This interlocking facilitates rotation and stability. In embodiments, there can be a single tab and a single track, or multiple tabs and multiple tracks.

An asymmetrical cutting tool has a partially cord-wrapped handle with a first handle panel, a second handle panel, and an intercheangeable overlay. The cutting tool further includes a folding blade, pivotably attached to the cord-wrapped/overlaid handle, and having a partially concave edge and a punch tip. The folding blade is operable to transition between a locked state and an unlocked state. Lock wear is compensated by dual eccentric thumb studs which act as a camshaft lobe to alter the position of the blade with respect to the lock while in the locked state. The partially cord-wrapped handle is configured to receive the folding blade when the blade transitions from the locked state into the unlocked state.

A tool having a replaceable component is disclose. In one aspect, the tool has a handle and an armature rotatably coupled to a first end of the handle. The armature is configured to be disposed at least partially within a cavity of the handle in a first position and extended outside of the handle in a second position. In another aspect, the tool is removably coupled to a distal end of the handle extending generally in the same longitudinal direction as the handle. A tool is removably coupled to the handle in an improved manner that optimizes safety and efficiency.

A decoupled lock is disclosed. One embodiment provides a knife having a handle pivotably attached to a knife blade, the knife blade having a closed position within the handle and an open position extended from the handle, and a decoupled lock having a blade engagement portion to lock the blade and a user interface portion to disengage the blade engagement portion, wherein the blade engagement portion is biased toward a locked position and the user interface portion disengages the blade engagement portion when the blade is in the open position and is decoupled from the blade engagement portion with the blade in the closed position. Other embodiments are described herein.

A locking mechanism for a tool or knife blade based on the locking liner lock. A hinge replaces the typical flex point at the base of the lockbar which allows the lockbar to be made of materials other than those required to be resilient. This allows materials that are lightweight, non metallic, and many other possibilities. As well very strong non resilient materials can be used which would avoid some of the mechanical failures that resilient materials have shown by bending due to downward force on the top of the tool or knife. This mechanical failure will not only destroy the ability of a knife to lock in the open position but the event will cause the blade to rotate toward the closed position and can cut the operators hand. That is a safety issue.

A folding knife with user selectable knife locking mechanism is disclosed. The knife locking mechanism is selectable between a frictional lock mode and a frame lock mode. The frictional lock mode retains an extended blade of the folding knife with a frictional interference to limit the blade from inadvertent retraction. The frame lock mode prevents the extended blade from being retracted into the main body. A tension piece is resiliently moveable to selectively protrude within the interior cavity. A lock mode selector slide is movably carried on the tension piece and is operable to select between the friction lock mode and the frame lock mode.

This invention is directed toward a versatile, low profile pocket tool. The pocket tool contains only a single backing plate and can be made without using any screws, pins, or other fasteners. In that way, the implements can easily be removed and interchanged. The stability of the pocket tool is gained by using an tabs that interlock around a track on the implement. This interlocking facilitates rotation and stability. In embodiments, there can be a single tab and a single track, or multiple tabs and multiple tracks.

A folding knife includes a handle, a first liner inside the handle, and a second liner inside the handle and opposed to the first liner. A blade has a tang and a cutting edge, and the tang of the blade pivotally connects the blade between the first and second liners. The blade has a retracted position in which the cutting edge is inside the handle and a deployed position in which the cutting edge is outside the handle. An actuator is at least partially between the first and second liners, and a spring is between the first and second liners and in compression against the actuator so that the spring biases the actuator toward the tang of the blade.