Abstract: The present invention is to provide an assisted-opening folding knife, which includes a handle having a first positioning groove and a first recess, a blade capable of pivotally springing out of the handle, and a pushing device. A first post on the blade is moved along the first recess while being rotated into the handle, and a second post on the blade is exposed outside the handle while being received in the handle. The pushing device includes a pushing element located in the first positioning groove and a second spring provided between the pushing element and the first positioning groove, so as for the pushing element to move along the groove. Thus, while the blade is rotated into the handle, the first post presses and passes the tip of the pushing element and is then blocked by the pushing element, thereby preventing the blade from springing out of the handle.

Abstract: The present invention is to provide an assisted opening folding knife, which includes a handle, a blade pivotally connected to the handle, a sliding key, and a first resilient element having one end positioned in the handle and an opposite end pressing against an end of the blade. The sliding key is provided adjacent to a front end of the handle, and has a sliding portion exposed from the handle and a pressing portion opposite to the sliding portion. When the blade is received in the handle and the sliding portion is driven to move the sliding key and release the blade, the pressing portion presses the blade to rotate a predetermined angle for enabling the first resilient element to pop the blade out of the handle. Thus, a user only has to slide the sliding key to release and pop the blade out of the handle automatically.

Abstract: The present invention is to provide a safety folding knife comprising a blade having an end pivotally coupled to an end of a handle, such that the other end of the blade can be rotated out of or into the handle. The handle includes an elastic stop plate therein, which has an end fixed onto the handle and the other end tilted and extended towards a side of the blade. When the blade is turned fully out of the handle, the other end of the elastic stop plate can be abutted against the end of the blade so as to maintain the blade in a fully opened state, and a resisting block installed inside the handle then moves and firmly blocks the elastic stop plate to avoid the blade from being accidentally turned backward to the handle.

Abstract: A folding knife includes a handle, an axle coupled to a first end of the handle, and a blade rotatably coupled to the axle. The blade includes a working portion and a tang, the blade having an open position in which the working portion extends from the handle and a closed position in which the working portion is substantially received within the handle. The folding knife further includes a lock having a locked position in which the lock prevents rotation of the blade and an unlocked position in which the lock permits rotation of the blade. The knife further includes a spring arm in the handle and a safety coupled to the handle, the safety having a first position in which the safety deflects the spring arm into the path of the lock to maintain the lock in the locked position and a second position in which the safety permits the lock to move from the locked position to the unlocked position.

Abstract: A removable knife opening assist for a folding knife. The removable knife opening assist includes a hook and an attachment portion. The folding knife is configured to be stored in a folded condition in a container. The removable knife opening assist is configured to snag the container so that the folding knife is automatically opened for use when the folding knife is withdrawn from the container, without the need to manipulate the knife, other than the simple withdrawal of the folding knife from the container.

Abstract: A cutter apparatus includes a housing with an opening, and a blade carrier coupled to the housing to permit rotational movement of the blade carrier between a refracted position and a deployed position and to permit movement of the blade carrier toward a distal end of the cutter in response to a cutting edge of the blade coming into contact with a workpiece, the blade carrier being coupled to the housing and configured for holding and deploying a blade at a plurality of selectable blade depths and for preventing the blade carrier from rotating back into the housing when the blade carrier is deployed at any of the selectable blade depths and advanced to a cutting position.

Abstract: An improvement of a folding knife locking mechanism with an adjustable wedge to remove blade slop. The present mechanism allows for smooth opening and closing of the blade by limiting friction against the blade as it rotates. This knife has a bearing system for low friction blade rotation. Also the leaf strap lock is arranged so that it only comes into contact with the blade at the start of opening and at the end of opening, further limiting the friction forces against the blade. Provided is also an adjustment wedge to remove blade lock slop. In the manufacturing process loose tolerances can be adjusted out using the adjustment wedge. Normal use wear against the stop pins and handles can cause some looseness of the blade which can also be removed by the adjustment wedge.

Abstract: A folding knife incorporates an opening assist mechanism that functions to drive the blade from the closed to the open position. A torsion spring is retained axially on the blade axis pin and within a bushing that is stationary relative to the knife handle. One leg of the spring is fixed relative to the handle. The opposite leg of the spring extends through and rides in a partial annular groove in the bushing and acts on the blade as it is moved between the open and closed positions.

Abstract: A folding knife in exemplary embodimentsTong comprises a handle portion, a blade, a locking cross-bolt, and a motion limiting member coupled to the handle. When the blade is in the closed position, the motion limiting member is in a first position that prevents the cross-bolt from moving to its locked position. When pivoting the blade to the open position, the motion limiting member moves to a second position that does not prevent the cross-bolt from moving to its locked position. A biased safety mechanism can also be used to block the cross-bolt from moving to an unlocked position.

Abstract: A pocketknife has a handle, a blade, an assistant assembly and a locking assembly. The handle has a cavity defined in the handle. The blade is mounted pivotally at one end of the handle. The assistant assembly is mounted on the handle, assists to extend the blade out or retract the blade in the cavity and has a dial, a biasing lever and a spring. The dial is mounted rotatably in the handle and is connected securely on a proximal end of the blade. The biasing lever is mounted in the handle and is mounted eccentrically and pivotally on the dial. The spring is mounted around the biasing lever and biases the biasing lever to rotate the dial in two rotational directions to retract or extend the blade. The assistant assembly assists the user to open or close the pocketknife.

Abstract: A folding tool includes a handle and an implement pivotally coupled to the handle. The implement is adapted to travel between a closed position and an open position. The implement includes a tang having a contoured surface. The folding tool also includes a locking device movable between a locked position and an unlocked position along an axis that is transverse to a plane defined by the implement. The folding tool further includes a cantilever spring having a first end coupled to the handle and a second end adapted to interact with the tang of the implement. The spring exerts a closing force on the implement when the blade is in a closed position. The spring exerts an opening force on the implement during at least a portion of the travel of the implement between the closed position and the open position.

Abstract: A folding knife having a back bar configured to engage the tang portion of a blade. A release member mechanism is utilized to engage the back bar to apply force thereto to at least partially disengage the back bar from the tang portion of the blade for purposes of repositioning the blade with respect to the handle.

Abstract: A guard for a folding knife which guard protects the fingers of the user when the blade is open. The guards may be lifted by the movement of the blade by a link, spring, lifting pin, gears, underside of the blade or hooked by thumb stud or back of blade or by a flipping motion due to the contour of the handles. The guards may be of various shapes and may be recessed in an out-of-the-way position when the blade is closed. The guards may extend at opposite sides of the blade and opposite sides of the handle. The guards are adaptable to a wide variety of folding knife styles.

Abstract: A locking mechanism for a folding knife includes a thumb post which longitudinally moves along slots in the handle of the knife. The thumb post is urged by a spring loaded locking lever into a notch in the base of the blade of the knife. When so positioned the thumb post retains the blade in an extended position. When the user pushes the thumb post out of the notch, the blade can be folded into the handle of the knife. In another embodiment the thumb post is an integral part of the locking lever, and it is a tab on the locking lever rather than the thumb post engages the notch in the base of the blade.

Abstract: A biasing system for the blade of a folding knife includes one component or assembly applying a force tending to move the knife blade from a closed position, nested in the handle, to an open position, extending from the handle. A second component or assembly resists opening of the blade, particularly when the blade is in or near the closed position. The resisting force is overcome by the opening force after the blade has been moved through a predetermined angle relative to the handle, so that the blade then opens automatically. A safety can be actuated to block opening and/or closing of the blade. The blade can have a blunt projection upon which a user may press to move the blade through the predetermined opening angle. A clip can be provided for convenient attachment of the folding knife to an object such as a garment.

Abstract: A folding knife incorporates an opening assist mechanism that functions to drive the blade from the closed to the open position. A pair of torsion springs held axially on the blade axis pin and within a pair of bushings are stationary relative to the knife handle. One leg of each spring is fixed to a bushing. The opposite leg of the spring rides in a pocket formed in the surface on the blade axially around the opening through which the blade axis pin is inserted. As the blade rotates from the closed position toward the open position, the legs of the springs rotate through and cooperate with structures formed on the bushings to transfer the spring pressure instantly to the blade to drive the blade open.

Abstract: An assisted-opening knife has a spring tied to a front of a blade carrier and a movable slider assembly within a slot formed through the blade carrier, so that a blade can be rapidly extended by the elastic force without going through stepwise movement. An expanded portion of the slot engaging the slider assembly allows the blade to be received in a holder and ejected only when the slider assembly fully disengages from the expanded portion, thereby generating no sudden ejection of the blade. Additionally, a safety latch securely locks the blade when the blade is fully retracted. When the blade is fully extended, a stopper engages the slider assembly to prevent the blade from being retracted during cutting and stabbing. Accordingly, the assisted-opening knife addresses a solution to rapidly extend the blade for cutting and stabbing without compromising the safety considerations.

Abstract: A folding tool and an associated locking mechanism are provided in order to securely and reliably retain an implement, such as a knife blade, in an open position. The folding tool may include a handle, an implement pivotally connected to the handle and a lock. The lock, in turn, may include an engagement member for movement with the blade and a pivotable member, such as a cam member, configured to pivot relative to the handle between first and second positions. As a result of controlled interaction between the engagement member and the pivotable member, such as a result of camming action provided by the cam member, the rotatable implement can be secured in the open position. If desired, the rotatable implement may be released and folded into the closed position.

Abstract: The folding knife of the present invention includes a handle having first and second handle members that are maintained in spaced, parallel relation to one another by spacing elements that define a groove therebetween. The blade is pivotally attached to the handle at its tang portion and is movable into and out of the groove between its fully open and fully closed positions. A coil spring, or equivalent, may be interconnected between the tang and handle to provide an assisted opening mechanism. A blade lock includes a user actuated button that passes through an elongated slot formed through one of the handle members and through a circular opening formed through a bias plate that is positioned within the handle, and a plunger element that is spring biased in a direction transverse to the longitudinal axis of the blade.

Abstract: A knife opening assist removably attached to a folding knife blade. The assist is comprised of an attachment element with a channel formed therein for positioning over a portion of any blade edge opposite to the sharp blade edge. The element is attached to the blade by attachment means through apertures formed in the attachment element sides. The top of the attachment element has a hook-shaped element hooking toward the forward end of the blade. The hook is adapted to snag a pocket, holster or other container as the pocket knife is being drawn out for use.

Abstract: A fold knife comprising a handle and a blade hinged to the handle. The fold knife further comprises a switch mechanism for manual and semi-automatic operation which is positioned in the inner chamber of the handle. The switch mechanism for manual and semi-automatic operation has a first position in which it is allowed to manually open the blade from the handle and a second position in which it is allowed to automatically open the blade from the handle. The fold knife is capable of easily switching between the manual operation condition and the semi-automatic operation condition by means of the switch mechanism for manual and semi-automatic operation.

Abstract: A folding knife with thumb release opening includes a knife blade, a first liner plate, a second liner plate, a first handle plate and a second handle plate. The knife blade includes a cutting edge and a point formed on a first end. A second end of the knife blade is pivotally retained by a first end of first and second liner plates. A push button is retained in the knife blade. A liner lock is formed in the second liner plate. A lock pin is pressed into an end of the liner lock and a lock hole is formed in the second end of the knife blade to receive the lock pin. The first and second handle plates cover the first and second liner plates. The push button may be replaced with a thumb disc. A second embodiment includes spring assisted opening and a third embodiment includes automatic opening.

Abstract: A cutter apparatus includes a housing, multiple tools mechanically coupled to the housing, at least one of the tools including a cutting device, and a slider and lock wheel mechanically coupled to the housing and configured to selectively release only one of the tools at a time from being secured within the housing.

Abstract: A safety lock mechanism for a folding knife includes a lock plate movably coupled to a handle of the knife for movement along a first direction from an engaged position to a disengaged position, the lock plate biased towards the engaged position. A rocker element is coupled to the lock plate for movement from a locked position to an unlocked position and is configured to prevent translational movement of the lock plate to the disengaged position when the rocker element is in the locked position. A control button coupled to the rocker element allows a user to move the rocker element from the locked position to the unlocked position and to move the lock plate towards the disengaged position to thereby release a blade of the knife.

Abstract: A folding knife with thumb release opening includes a knife blade, a first liner plate, a second liner plate, a first handle plate and a second handle plate. The knife blade includes a cutting edge and a point formed on a first end. A second end of the knife blade is pivotally retained by a first end of first and second liner plates. A push button is retained in the knife blade. A liner lock is formed in the second liner plate. A lock pin is pressed into an end of the liner lock and a lock hole is formed in the second end of the knife blade to receive the lock pin. The first and second handle plates cover the first and second liner plates. The push button may be replaced with a thumb disc. A second embodiment includes spring assisted opening and a third embodiment includes automatic opening.

Abstract: A folding knife has a handle, a blade, a locking rod and an unlocking lever. The handle has a dorsal portion. The blade is pivotally mounted and selectively folded in the handle and has a notch. The notch is formed on a spine of the blade. The locking rod is mounted on the dorsal portion of the handle and has a locking end and a protrusion. The protrusion is formed on the locking end and engages the notch of the blade. The unlocking lever is pivotally mounted on the handle and has a pushing end and at least one propping block. The propping block protrudes from the unlocking lever and abuts the locking rod. Therefore, the folding knife allows users to release the blade by either directly pressing the locking rod or pushing the pushing end of the unlocking lever.

Abstract: A folding knife includes a handle element, a blade rotatably coupled to the handle element, and a locking mechanism operatively coupled between the blade and the handle element. The locking mechanism includes first and second pairs of toggles positioned, respectively, on first and second sides of the blade, each pair of toggles being configured to move into a locked position when the blade is rotated to an open position. A handle of the knife may include the handle element and the first and second pairs of toggles.

Abstract: A folding knife with thumb release opening includes a knife blade, a first liner plate, a second liner plate, a first handle plate and a second handle plate. The knife blade includes a cutting edge and a point formed on a first end. A second end of the knife blade is pivotally retained by a first end of first and second liner plates. A push button is retained in the knife blade. A liner lock is formed in the second liner plate. A lock pin is pressed into an end of the liner lock and a lock hole is formed in the second end of the knife blade to receive the lock pin. The first and second handle plates cover the first and second liner plates. The push button may be replaced with a thumb disc. A second embodiment includes spring assisted opening and a third embodiment includes automatic opening.

Abstract: A foldable knife comprises a blade having an end pivotally connected to an end of a handle, and a spring having two ends connected to the handle and blade respectively, so that the spring can apply a torque to the blade to rotate the blade out of the handle. A blocking element is provided at an inner portion of the handle. A switch element pivotally connected to the inner portion of the handle has a first end extended out of the handle. When the blade is completely received in the handle, a second end of the switch element bears against the blade. When the user pushes the first end of the switch element, a positioning portion formed on the blocking element is disengaged from an engaging portion formed on the blade, so that the torque of the spring drives the blade to spring out of the handle.

Abstract: A folding knife includes a handle, an axle coupled to a first end of the handle, and a blade rotatably coupled to the axle. The blade includes a working portion and a tang, the blade having an open position in which the working portion extends from the handle and a closed position in which the working portion is substantially received within the handle. The folding knife further includes a lock having a locked position in which the lock prevents rotation of the blade and an unlocked position in which the lock permits rotation of the blade. The knife further includes a spring arm in the handle and a safety coupled to the handle, the safety having a first position in which the safety deflects the spring arm into the path of the lock to maintain the lock in the locked position and a second position in which the safety permits the lock to move from the locked position to the unlocked position.

Abstract: A folding knife has a slot disposed in the thickness of the tang with a roller cam extending outside of the perimeter of the tang and rotatably attached within the slot. A safety assembly disposed within the handle has a stud extending through a slot in the handle and moves the assembly between a safe and an unsafe position. In the safe position the safety assembly is forced against the tang thereby preventing opening. An adjustable bias element assists the blade in exiting the blade slot. The bias element is in spring communication with the roller cam. Applying pressure to the stud urges the blade from the closed position as the bias element is centered with the roller cam and the blade is forced to an open position by the spring force of the bias element on the roller cam.

Abstract: A low friction folding knife has a blade with a distal end and a tang. The tang has a slot disposed in the thickness of the tang with a roller cam extending slightly outside of the perimeter of the tang and rotatably attached within the slot. There is a safety assembly disposed within the first outer handle that has a safety stud extending through a safety slot in the first outer handle for moving the safety assembly between a safe position and a safe off position. There is an adjustable bias element disposed between the first liner and the second liner. The adjustable bias element is positioned to assist the blade in exiting the blade slot.

Abstract: A folding knife has a slot disposed in the thickness of the tang with a roller cam extending outside of the perimeter of the tang and rotatably attached within the slot. A safety assembly disposed within the handle has a stud extending through a slot in the handle and moves the assembly between a safe and an unsafe position. In the safe position the safety assembly is forced against the tang thereby preventing opening. An adjustable bias element assists the blade in exiting the blade slot. The bias element is in spring communication with the roller cam. Applying pressure to the stud urges the blade from the closed position as the bias element is centered with the roller cam and the blade is forced to an open position by the spring force of the bias element on the roller cam.

Abstract: A folding knife having a handle, a blade pivotably coupled to the handle, and a liner includes a liner lock and a first pivot point that is a post, pin, rod, or other structure having a shape adapted to be slidably received in the second arcuate opening of the blade. The liner further includes a first arcuate opening that has an enlarged end portion and an axis approximately perpendicular to the longitudinal axis of the handle adapted for slidably receiving the second pivot point of the blade. A tang of the blade includes the second pivot point, and the second arcuate opening that has an enlarged end portion and an axis approximately parallel to the longitudinal axis of the blade. An extended tang portion, or flipper, extends downward from the tang. The handle also includes an opposing liner arranged alongside the liner in the handle with the blade positioned therebetween.

Abstract: A folding knife includes a handle having a locking surface, a blade coupled to the handle and configured to rotate, relative to the handle, between a closed position and an open position, and a locking mechanism. The locking mechanism includes a locking post coupled to the blade and configured to move along a slot between a locking and a releasing position, with a biasing member configured to bias the post in the direction of the locking position. The post includes studs positioned above and below the plane of the blade. The studs may be rotatable around the axis, and the slot is positioned such that, when the blade is in the open position, the post may be moved toward the locking position until a face of the stud engages a locking surface of the handle, thereby locking the blade in the open position.

Abstract: A locking mechanism for a folding knife or tool with a handle having a cavity defined within the handle; a knife or tool blade having a heel-butt end with a female puzzle cavity portion cut out of a rear side of the heel-butt end, and the heel-butt end being rotationally interconnected to the front end of the handle wherein the knife or tool blade travels between an extended position and a closed position within the handle cavity; and a matching male puzzle portion at an end of a tang portion configured for engaging snugly and interconnectively with the female puzzle cavity portion at the heel-butt of the blade.

Abstract: A folding knife includes a handle and a blade pivotally supported on the handle. A tang of the blade includes a cam surface. The cam surface has a substantially arcuate guiding portion and an engagement portion that is formed continuously from one end of the guiding portion. The handle has a blade locking mechanism. The locking mechanism includes a slider and a coil spring that biases the slider. The slider is movable along the longitudinal direction of the handle between a lock position, at which the slider is engaged with the engagement portion, and an unlock position, at which the slider is separate from the engagement portion. The slider has a pressing portion that is engaged with the blade when the blade is arranged at the folded position. By moving the slider in the direction from the lock position toward the unlock position when the blade is at the folded position, the pressing portion presses the blade out of the folded position toward the open position.

Abstract: A folding knife incorporates an opening assist mechanism that functions to drive the blade from the closed to the open position. A pair of torsion springs held axially on the blade axis pin and within a pair of bushings are stationary relative to the knife handle. One leg of each spring is fixed to a bushing. The opposite leg of the spring rides in a pocket formed in the surface on the blade axially around the opening through which the blade axis pin is inserted. As the blade rotates from the closed position toward the open position, the legs of the springs rotate through and cooperate with structures formed on the bushings to transfer the spring pressure instantly to the blade to drive the blade open.

Abstract: A combination utility and sporting knife includes a longitudinal knife handle, a utility blade carrier disposed within the handle and linearly movable within the handle, a utility blade carried by the blade carrier, a manual movable blade moving member operatively connected with the blade carrier, and a pivotally movable blade pivotally connected to the handle. The utility blade and the pivotally movable blade are extendable from opposite ends of the handle. The utility blade edge and the pivotally movable blade edge both are exposed towards the bottom portion of the handle when the pivotally movable blade and the utility blade are in operative positions thereof so that the bottom and top portions of the handle retain their relative bottom and top orientations for use of either the utility blade or the pivotally moveable blade.

Abstract: The folding knife of the present invention includes a handle having first and second handle members that are maintained in spaced, parallel relation to one another by spacing elements that define a groove therebetween. The blade is pivotally attached to the handle at its tang portion and is movable into and out of the groove between its fully open and fully closed positions. A coil spring, or equivalent, may be interconnected between the tang and handle to provide an assisted opening mechanism. A blade lock includes a user actuated button that passes through an elongated slot formed through one of the handle members and through a circular opening formed through a bias plate that is positioned within the handle, and a plunger element that is spring biased in a direction transverse to the longitudinal axis of the blade.

Abstract: A flick knife with a lever frame has a hilt, a blade, a lever frame and a spring. The blade has a proximal end pivotally mounted in the hilt. The lever frame is mounted through the hilt and has a front connector that abuts the proximal end of the blade to rotate the blade, and a rear connector. The spring is mounted inside the hilt and connects the hilt to the rear connector of the lever frame and eases opening of the blade and prevents the blade from opening. Because the spring is mounted in the hilt, the knife is thinner than prior art and therefore more convenient.

Abstract: A folding knife includes a handle element, a blade rotatably coupled to the handle element, and a locking mechanism operatively coupled between the blade and the handle element. The locking mechanism includes first and second pairs of toggles positioned, respectively, on first and second sides of the blade, each pair of toggles being configured to move into a locked position when the blade is rotated to an open position. A handle of the knife may include the handle element and the first and second pairs of toggles.

Abstract: An improvement for a dual handle fighting knife having interlocking handles when in open position and multiple spring blades stabilization in open and closed position. The handle blade spring engagement provides for a safe, straight-forward interlocking blade position and spacing of said cutting edge engagement with said handle when in closed position.

Abstract: A knife with a spring-assisted articulation mechanism for assisting the user in the folding and unfolding of the blade from the pocket of the liner. The spring-assisted articulation mechanism also helps retain the blade in the folded position to prevent the blade from becoming unintentionally unfolded. The knife includes a pocketed liner and a blade attached to liner at one end of the liner by a pivot pin. The blade has a pointed end and a base end, the base end pivotally secured to the second end of the liner by the pivot pin such that the blade is capable of pivoting between a folded “closed” position and an unfolded “open” position. A guide pin is also attached to the blade of the knife at the base. A spring is provided to exert a closing force on the blade when the blade is in the closed position and an opening force on the blade when the user moves the blade into a partially open position.

Abstract: A folding hand tool with an open-assist mechanism that is not mechanically linked to a folding knife blade is disclosed. The open-assist mechanism is allowed to rotate around the same pivot used by the blade, and includes a lug that interacts with the kick of the blade when rotated. Because the open-assist mechanism is not mechanically linked to the blade, it has a range of free motion that promotes safety, and allows the mechanism to rotate into the blade cavity when the blade is extended. The folding knife also may have a carabiner that shares the blade cavity with the blade, with the blade nesting into the carabiner to save space, thereby giving the folding knife a smaller profile.

Abstract: A hand tool is provided that includes both a fixed implement and a folding or rotatable implement, thereby taking advantage of the security and reliability of a fixed hand tool while also providing an additional implement in order to increase the utility of the resulting hand tool. In order to facilitate use of both fixed and rotatable implements, also provided are a locking mechanism, such as for individually locking the rotatable implement and the handle relative to the fixed implement, and a compound tool that can serve as the rotatable implement in order to mate with and receive at least a portion of the fixed implement, such as in instances in which both the fixed and rotatable implements are deployed.

Abstract: A guard for a folding knife which guard protects the fingers of the user when the blade is open. The guards may be lifted by the movement of the blade by a link, spring, lifting pin, gears, underside of the blade or hooked by thumb stud or back of blade or by a flipping motion due to the contour of the handles. The guards may be of various shapes and may be recessed in an out-of-the-way position when the blade is closed. The guards may extend at opposite sides of the blade and opposite sides of the handle. The guards are adaptable to a wide variety of folding knife styles.

Abstract: Knives (10, 182) each include a handle (12, 184) having a blade (14, 90, 194) pivotally attached to the handle. The blade is movable between a closed position in which it is received within a groove (36, 192) of the handle and an open position. The blade has a working portion (38, 198) and a tang portion (44, 98, 204), which remains within the groove when the blade is in its open position. A locking pin (72, 208) extends transversely of the handle and blade and is movable along a pair of elongated openings (74, 216), and engages the tang portion (44, 98, 204) of the blade to lock the blade in its open position. A spring (78, 228) biases the locking pin toward the tang.

Abstract: A folding knife having a safety lock moveably mounted on a handle of the knife. The safety lock may slide to a locking position to prevent the blade from opening out of the handle by obstructing the path of the blade as the blade is urged from a closed position to an open position. The safety lock also may slide away from the locking position, in which the safety lock does not obstruct the path of the blade.

Abstract: An improvement for a dual handle fighting knife having interlocking handles when in open position and multiple spring blades stabilization in open and closed position. The handle blade spring engagement provides for a safe, straight-forward interlocking blade position and spacing of said cutting edge engagement with said handle when in closed position.