Abstract: A utility tool with at least one blade that is capable of being disposed at least partially within the body of the utility tool. The at least one blade may swivel around an access of rotation and engage with a locking mechanism to keep the blade secure when in use and secure in the body when in a closed position.

Abstract: A knife includes a blade, a first handle having pivotably coupled to the blade, a second handle pivotably coupled to the blade, the second distal end of the second handle defining a first locking mechanism and a second locking mechanism, a latch pivotably coupled to the second distal end portion and supporting a locking pin, the locking pin configured to selectively engage each of the first locking mechanism and the second locking mechanism separately, wherein the first handle and the second handle are each selectively repositionable between an open position and a closed position, wherein in the open position, the first handle and the second handle extend away from the blade, and wherein in the closed position, the first handle and the second handle extend along the blade.

Abstract: A Balisong knife includes a latch that resists compression of the back end of the handles towards each other under grip pressure by the user, thus increasing the columns strength of the handles when the knife is in a latched open configuration. A crossmember is provided adjacent to the latch pivot, resisting movement of the latch into any position wherein interference between the latch and tip of the blade could occur. Integral, friction reducing surfaces are provided on components of the knife. The knife can be assembled using snap fit pivot pins. The blade includes portions of varying thickness, providing additional thickness in the region of the points for greater strength, while allowing center edges for more effective cutting.

Abstract: A knife includes a blade defining an aperture and a handle. The handle includes a body pivotably coupled to the blade, a catch movably coupled to the body, and a biasing member coupled to the body. The catch includes a protrusion. The biasing member is configured to apply a biasing force on the catch. The handle is selectively repositionable between a first position and a second position relative to the blade. The biasing force biases the protrusion of the catch toward the blade when the handle is in the first position. The protrusion is received by the aperture to prevent rotation of the handle relative to the blade when the handle is in the first position.

Abstract: Various embodiments of a folding knife are disclosed. In one embodiment, the folding knife includes a handle, a blade including a tip and a tang with the tang having a tang block engagement element, an axle pivotably connecting the blade to the handle, and a lock mechanism. The lock mechanism includes a locking block constrained to move along a fore-aft linear axis, the locking block including a lower engagement surface, an upper engagement surface, and a rear surface. The lock mechanism also includes a biasing device carrier pivotably connected to the handle, a biasing device oriented between the biasing device carrier and the rear surface of the locking block and the biasing device configured to bias the locking block toward the blade tip when the blade is in an open orientation, and at least one handle block engagement element oriented above the upper engagement surface of the locking block.

Abstract: The invention may include a knife having a syringe hub remover. In one embodiment, the invention may include a hub slot that may be integral to the knife tang and that may further be configured to be positioned over a syringe hub and allow for an improved leveraged torque force to be applied thereby twisting and ultimately assisting in the removal of the syringe hub.

Abstract: A multifunctional rescue tool providing a plurality of tool components including an angled blade to disengage a lock shielded by a blocker plate and wherein the angled blade has a base portion and an integral elongate distal portion forming an angle along a contiguous planar surface that is preferably substantially perpendicular and is pivotally coupled to a handle having a corresponding slot configured for receiving the angled blade wherein the elongate distal portion is angled outwardly from the base portion of the angled blade in a preferably perpendicular orientation when the base portion and handle are locked in substantial alignment in an open position, and the angled blade is alternatively engageable to form additional angles to facilitate construction of raker shores while also including various tool components including a window breaker, seat belt cutter, gas shut off, oxygen tank, hexagonal wrenches, as well as, a lanyard, shove knife, and cutting knife in a compact configuration capable of convenie

Abstract: A lock-blade knife for cooking purposes comprises a housing, a blade pivotally attached to the housing and a locking mechanism. The blade is rotatable relative to the housing between a closed position and a least one cutting position. The locking mechanism is configured to lock the blade in the at least one cutting position. The locking mechanism comprises a biasing member, an engagement structure, and a grasping member. The engagement structure is disposed on the blade, and the grasping member is displaceable from a locking position into a releasing position. The grasping member is biased into the releasing position. The grasping member is in engagement with the engagement structure in the locking position when cutting to lock the blade in position. The blade is rotatable between the cutting position and the closed position when the grasping member is manually displaced into the releasing position.

Abstract: A magnetic latch having a latch arm with a proximal end and a distal end, the proximal pivotally mounted to a butt end of a first handle half, wherein the proximal end of the latch end includes a first magnetic element that is magnetically coupled to the first handle half to preferentially extend the latch arm axially with respect to a long axis of the first handle half, and the distal end including a coupling element. The magnetic latch further having a retention element at the butt and of a second handle half that couples to the coupling element to securely latch the first handle half and the second handle half together. A butterfly knife having a magnetic latch to securely latch the first handle half and the second handle half together, either in in the closed or open position.

Abstract: An interchangeable backspacer assembly for knives that allows different back spacers to be readily interchanged to selectively incorporate additional functionality, such as lanyard loops, glass breakers, and pry tools, into the knives. The interchangeable backspacer assembly includes a pair of standoffs, a backspacer and a locking set screw. The standoffs are connected between the side members of the knife handle to form an opening for receiving the backspacers at the distal end of the handle. The backspacers are held in place by a locking set screw turned into a threaded bore in the backspacer.

Abstract: An action skill toy that is intended to be juggled by being repeatedly thrown and caught in one hand or between both hands of a user. The action skill toy has a central hub area and rigid appendages that extend away from the central hub area. Each of the rigid appendages has a first end within the central hub area and a free second end that extends out of the central hub area. Each of the rigid appendages is coupled at a pivot joint to another of appendages within the central hub area. This enables each of the rigid appendages to rotate about a pivot joint in a common plane of rotation. To facilitate the grasping of the rigid appendages during juggling, each of the appendages has an enlarged area near its free end. The enlarged areas also provide space for the mounting of illumination units.

Abstract: A snap hook includes a frame, a gate, and a screwdriver blade. The frame has a first hook portion and a second hook portion located on different sides. The gate has an abutting end abutting against an end of the first hook portion. The screwdriver blade is pivotally connected to the frame, and a working end is formed on an end of the screwdriver blade whereby the snap hook could be engaged with two objects through the first hook portion and the second hook portion. The gate blocks a side opening of the first hook portion, and therefore the object hanged in the first hook portion would not fall out accidentally. Furthermore, the screwdriver blade increases the added value of the snap hook.

Abstract: A folding knife assembly includes a blade system which is disposable between an open configuration and a closed configuration using a single hand. The blade system includes a fixed blade portion and a movable blade portion, wherein the fixed blade portion and moveable blade portion are cooperatively structured to engage one another in an interlocked configuration when the blade system is disposed in an open configuration. The folding knife assembly also includes a positioning assembly structured to facilitate disposition of the blade system between an open configuration and a closed configuration. A locking assembly is provided and is structured to operatively engage at least a portion of the positioning assembly to releasably secure the blade system in the open configuration, and to operatively disengage the positioning assembly to permit disposition of the blade system into a closed configuration.

Abstract: A scalpel handle for holding a blade includes a handle member and a blade shield for covering the cutting edge of the blade. The blade shield is connected to the handle member for movement relative thereto between a blade-covering position and an out-of-the-way position, and a finger-operable actuator is mounted upon the handle member for movement relative thereto and is connected to the shield so that by moving the actuator between first and second conditions, the shield is moved between its blade-covering and its out-of-the-way positions. An over center spring is interposed between the actuator and the handle member so that upon movement of the actuator into its second condition, the shield is biased into the out-of-the-way position and so that upon movement of the actuator into its first condition, the shield is biased into the blade-covering position.

Abstract: A knife with a guard assembly generally comprises a blade member, a handle assembly, and a blade guard assembly. The blade member includes a blade having a sharpened edge and an integral shank. The handle assembly is mounted to the shank. The blade guard assembly is mounted for pivotal movement about the blade member between a retracted position adjacent the handle to a protective position covering the sharpened edge. The blade guard is spring loaded by a spring about a pivot axis and a biased actuator secures the blade guard in the retracted position and the stable protective position. Upon depressing the actuator the blade guard assembly is pivoted to the protective position from the retracted position by a force of the spring.

Abstract: A survival knife with integrated moveable guard that may move from a first position that provides a guard for the blade to a second position that provides half of the handle portion of the knife. Embodiments may include a carabiner coupled with the body of the knife and tools integrated into the blade or body.

Abstract: A carpet cutter assembly comprising a ribbed handle, an elongated internal channel opening along the lower surface, which houses the blade in a dosed position; an exposed blade storage mechanism on the handle for housing a plurality of replacement blades, the blade storage mechanism having a blade storage handle, which locks in a blade storage cavity to secure the blade in place; a locking wheel mechanism at the frontal end of the handle, which rotates the blade from an open, closed and loading position and secures the blade in these positions; a rotatable blade retainer located at the frontal end of the handle, wherein the blade is positioned for use; and a blade safety housing with a pivot opening through which the locking wheel shaft is inserted, wherein the housing engages with the retainer to secure the blade.

Abstract: A hand cutter with a retractable blade guard providing an unimpaired view of the blade, when it is placed on the object. The blade guard is unlocked and retracted by a trigger mechanism, which is activated by closing the hand around the cutter handle. The blade guard remains in the retracted position until the trigger is released or a relocking mechanism is activated by putting the blade to use by cutting the object.

Abstract: A chisel includes a blade and a first handle and second handle that are each rotatably coupled to the blade. The first handle forms a first channel adapted to receive a first side of the blade and the second handle forms a second channel adapted to receive a second side of the blade opposite the first side. The two handles are rotatable between an open and a closed position. In some cases, the two handles comprise a rotatable coupling such that the first handle and the second handle rotate with one another in opposite directions between the closed and open positions. The chisel further can have an over-center structure configured to impede rotation of the two handles from the closed toward the open position. In some cases, the two handles each form an interlocking component adapted to releasably couple the two handles when they are rotated to the open position.

Abstract: A cutting apparatus includes a handle frame, a cutting blade, and a blade rotation arrangement. The cutting blade has a first blade portion and a second blade portion. The blade rotation arrangement includes a pivot, a securing frame and an actuation member. The cutting blade is arranged to rotate between a first position and a second position, wherein in the first position, the first blade portion is extended out of the receiving cavity while the second blade portion is received in the receiving cavity, wherein in the second position, the second blade portion is extended out of the receiving cavity while the first blade portion is received in the receiving cavity. The securing frame is mounted in the receiving cavity for reinforcing the cutting blade when the cutting blade move between and at the first position and the second position.

Abstract: A multi-tool apparatus includes a frame having at least one opening and at least one gate element partially bounding the at least one opening. The at least one gate element is movable relative to the frame to permit access to the opening. The apparatus includes at least one cutting element partially bounding the at least one opening. The at least one gate element is movable into the opening so that the at least one gate element and at least one cutting element come into contact for wire stripping, crimping, and cutting operations.

Abstract: A utility knife includes a handle, a blade assembly secured to the handle, a blade cover mechanically coupled to the handle facilitating manipulability of the blade cover to an extended position over the blade assembly, and a slider that is repositionable along the handle to release the blade cover from the extended position, the slider being pivotally coupled to the blade assembly.

Abstract: A knife with a rotating implement is disclosed. In some embodiments, the knife has a blade with a tang and a knife edge, a handle having a first cavity to receive the tang of the blade and a second cavity to receive a rotating implement, the handle further having a pivot to receive a rotating implement; and a rotating implement connected to the pivot, the rotating implement having a sheath cover to cover the knife edge when the rotating implement is pivoted to an extended position, wherein the rotating implement is stowed in the second cavity in the handle when a stowed position.

Abstract: A knife with a guard assembly generally comprises a blade member, a handle assembly, and a blade guard assembly. The blade member includes a blade having a sharpened edge and an integral shank. The handle assembly is mounted to the shank. The blade guard assembly is mounted for pivotal movement about the blade member between a retracted position adjacent the handle to a protective position covering the sharpened edge. The blade guard is spring loaded by a spring about a pivot axis and a biased actuator secures the blade guard in the retracted position and the stable protective position. Upon depressing the actuator the blade guard assembly is pivoted to the protective position from the retracted position by a force of the spring.

Abstract: A folding tool includes a bolster that acts as a safety and lock release. The tool may be designed for one-hand opening. An implement is held in a stored closed position by a safety formed by the bolster and a button style lock. The implement can be opened to the ready-for-use position by rotating the bolster to release the safety, and then rotating the implement. Once the implement is open, the bolster is rotated back to its original position setting the lock for the tool.

Abstract: A safety mechanism for a utility knife is provided to prevent more than one retraction of the blade shield for each trigger actuation. A separable linkage extends between an actuator and a strut, and has a seat member and a deflecting member that are linked together when the actuator is not depressed and the strut is in the safety position blocking the retraction of the shield. The separable linkage is configured to transmit the pressing action of the actuator to the strut to disengage it from the bracket. The separable linkage is configured to delink as the shield retracts. If the actuator continues to be pressed in after the shield returns from being retracted, the safety mechanism prevents relinking of the seat member and the deflecting member, due to the deflecting member being deflected away from the seat member in a substantially longitudinal direction.

Abstract: A hand cutter with a retractable blade guard providing an unimpaired view of the blade, when it is placed on the object. The blade guard is unlocked and retracted by a trigger mechanism, which is activated by closing the hand around the cutter handle. The blade guard remains in the retracted position until the trigger is released or a relocking mechanism is activated by putting the blade to use by cutting the object.

Abstract: A hand-held, rotary fabric cutter having a handle, a blade assembly, a guard assembly, and a light assembly, the blade assembly and the guard assembly being attached to the handle by a blade bolt. The rotary cutter has a rotary blade and a longitudinally and laterally retractable blade guard attached to the handle by the blade bolt, the blade guard having a right guard and a left guard, the right guard and the left guard being pivotally connected by a guard pivot joint. The light assembly has a light element, an electric switch for the light element, a power source, and electrical interconnection. A slide knob simultaneously controls both the guard assembly and the light assembly.

Abstract: In certain embodiments of the present disclosure, a folding knife has a biasing mechanism, such as a spring, that applies an opening force to the blade when the blade is in the closed, or folded, position (i.e., the force of the spring creates a moment in the opening direction of the blade). The folding knife includes a latching mechanism that holds the blade in a closed and latched position against the opening force of the spring. To open the blade, manual pressure is applied to the upper edge of the blade (the edge opposite the sharpened edge) to move the blade slightly to a closed and unlatched position to release the blade from being held from the latching mechanism whereupon the blade is then free to pivot under the opening force of the spring.

Abstract: A hand cutter with a blade guard providing the highest possible protection from accidental cutting. The blade guard can be effortlessly activated from the locked position by a trigger, which is achieved by closing the hand around the cutter handle. The released blade guard remains in the released state until the blade has been put to use by cutting the object, when the blade guard release is removed so that the blade guard is automatically relocked as soon as the blade guard returns to the initial protected position.

Abstract: A chisel includes a blade and a first handle and second handle that are each rotatably coupled to the blade. The first handle forms a first channel adapted to receive a first side of the blade and the second handle forms a second channel adapted to receive a second side of the blade opposite the first side. The two handles are rotatable between an open and a closed position. In some cases, the two handles comprise a rotatable coupling such that the first handle and the second handle rotate with one another in opposite directions between the closed and open positions. The chisel further can have an over-center structure configured to impede rotation of the two handles from the closed toward the open position. In some cases, the two handles each form an interlocking component adapted to releasably couple the two handles when they are rotated to the open position.

Abstract: A utility knife includes a handle, a blade assembly secured to the handle, a blade cover mechanically coupled to the handle facilitating manipulability of the blade cover to an extended position over the blade assembly, and a slider that is repositionable along the handle to release the blade cover from the extended position, the slider being pivotally coupled to the blade assembly.

Abstract: A hand tool, a handle of a hand tool and associated methods for fabricating the handle of a hand tool are provided in order to reduce the weight and thickness of the resulting hand tool. The handle generally includes a composite portion fabricated of fibers embedded in a matrix material in such a manner such that the composite portion meaningfully contributes to the strength of the handle and, in turn, the hand tool. In this regard, the composite portion may include a relatively high percentage of fibers, relatively long fibers and/or fibers that are generally aligned with respect to the longitudinal axis of the handle. For example, the composite portion may include fibers that constitute at least 50% by volume, fibers that are at least 30 mm in length on average and/or fibers that are within 15° of being parallel to the longitudinal axis of the handle.

Abstract: A shielded knife includes a base, a blade secured to the base at a first end and a guard operatively attached to the blade at a second end opposite the base. The guard may be rotated between a closed position covering a sharpened edge of the blade and an opened position exposing the sharpened edge of the blade.

Abstract: A utility knife includes a handle, a blade assembly secured to the handle, a blade cover mechanically coupled to the handle facilitating manipulability of the blade cover to an extended position over the blade assembly, and a slider that is repositionable along the handle to release the blade cover from the extended position, the slider being pivotally coupled to the blade assembly.

Abstract: A cutter apparatus includes a housing and a blade holder coupled to the housing, wherein the housing includes a distal portion (e.g., a blade storage compartment) that is both slidably and pivotally coupled to portions of the housing and configured to serve as a cover for the blade holder. The cutter apparatus can also include a cover release device configured to facilitate repositioning the cover between a locked position at which the cover is secured to the housing and a released position at which at least a portion of the cover is free to pivotally reposition away from the housing providing access to the blade holder.

Abstract: A fixed-blade knife having a knife body. The knife body has a blade with a cutting edge and an elongated handle extending from the blade. A guard is pivotally coupled to the knife body and adapted to be actuated between an open position and a closed position. The guard has an external surface that is ergonomically configured for handling the knife when the guard is in the open position. In the open position, the guard is positioned adjacent the handle to expose the cutting edge. In the closed position, the guard is positioned adjacent the blade to cover the cutting edge.

Abstract: The present invention is directed to a hand-held instrument, which may comprise, in various exemplary embodiments thereof, a folding (manual, assisted opening, automatic, etc,) knife, a fixed blade knife, or any other hand-held tool comprising a handle, and at least one active region (e.g., a cutting, a saw blade, etc.), and which also advantageously comprises at least one novel user-operable protective element, that when placed, by the user, into an active position that is generally perpendicular to the handle of the instrument, is configured for protecting at least a portion of the user's hand while the instrument is held and/or utilized, and that when placed into a retracted position that is generally parallel to the handle of the instrument, streamlines the instruments longitudinal profile.

Abstract: A cutting apparatus has a unidirectionally-locking blade cover that automatically snaps back over the exposed blade after each cut, and a dependent, index finger operated unlocking trigger.

Abstract: A foldable knife includes a handle, a frame pivotally connected to the handle, a cartridge pivotally connected to the frame, a leaf spring attached to the frame, a blade-driving device, a blade-positioning element and a button. The frame includes a slot. The cartridge includes a slot through which the leaf spring reaches at least one blade when the cartridge is disposed in the frame. The blade-driving device includes a plate and a switch. The plate is in firm contact with the blade. The switch includes a portion located outside the frame and another portion inserted through the slot of the frame and connected to the plate. A blade-positioning element is movably connected to the frame. A button includes a portion for pushing the blade-positioning element and another portion inserted through the aperture of the frame for contact with a user's finger.

Abstract: A safety chisel (100) has handle parts (101) and (102), each pivotally connected to a chisel blade (105) by pins (104), to adjust the chisel readily from an open position (FIG. 11) to a closed position (FIG. 12). Grooves (107) in the handle parts (101, 102) form a cavity (109) to house the chisel blade (105) safely when the chisel (100) is closed. Impact forces are applied to flat tops of the handle parts (101, 102), which have lower, internal abutment faces 108 to transmit impact forces to the chisel blade (105).

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: 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 utility knife includes a handle, a blade holder assembly, and a clamp assembly. The blade holder assembly is constructed and arranged to hold a blade at a position of use at one end of the handle. The clamp assembly is constructed and arranged to move between a clamp position wherein the clamp assembly applies a clamp force to side surfaces the blade and a release position wherein the clamp assembly releases the clamping force.

Abstract: A cutting apparatus has a unidirectionally-locking blade cover that automatically snaps back over the exposed blade after each cut, and a dependent, index finger operated unlocking trigger.

Abstract: A folding knife having a finger guard extension mounted to the handle portion that is operatively configured to be positioned in a stored position when the knife is in a closed orientation. The finger guard is adapted to be withdrawn from the handle in an extended position when the blade is in an open position where in one form the finger guard is adapted to open the blade when a force is applied thereto.

Abstract: A foldable hand tool having a blade holder mounted with a handle for movement from folded and unfolded positions. The blade holder has an opening adapted to receive blades of different sizes. The foldable hand tool further has a locking mechanism to lock the holder in an open position. A blade holder lock engages a resilient arm formed in the side wall of the handle.

Abstract: A bi-fold knife locking mechanism is provided which maintains the open and closed positions associated with the bi-fold knife. A locking and release mechanism for changing the bi-fold knife from the closed to the open position is also disclosed. An aperture in the blade portion of the bi-fold knife for ergonomically gripping the bi-fold knife is also disclosed. A locking plate for securing the locking and release mechanism and bi-fold knife in the closed position is also disclosed.

Abstract: A hand tool, a handle of a hand tool and associated methods for fabricating the handle of a hand tool are provided in order to reduce the weight and thickness of the resulting hand tool. The handle generally includes a composite portion fabricated of fibers embedded in a matrix material in such a manner such that the composite portion meaningfully contributes to the strength of the handle and, in turn, the hand tool. In this regard, the composite portion may include a relatively high percentage of fibers, relatively long fibers and/or fibers that are generally aligned with respect to the longitudinal axis of the handle. For example, the composite portion may include fibers that constitute at least 50% by volume, fibers that are at least 30 mm in length on average and/or fibers that are within 15° of being parallel to the longitudinal axis of the handle.

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.