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: 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: An interlocking double throwing knife comprises: a first opposable throwing knife having a first blade and a first handle attached to the first blade, where the first handle has a first receptacle for housing another blade; and a second opposable throwing knife having a second blade and a second handle attached to the second blade, where the second handle has a second receptacle for housing another blade. The first opposable throwing knife and the second opposable throwing knife interlock by simultaneously inserting the first blade into the second receptacle and the second blade into the first receptacle such that the first blade and the second blade are sheathed within opposing knife handles.

Abstract: A cutter formed by detachably attaching a replaceable blade to a cutter body. The cutter body can include a main body block and slide block. The main body block includes a main body supporting section supporting the replaceable blade back face, and a main body connecting section connecting with the replaceable blade from the front face side. The slide block includes a rear side supporting section supporting the replaceable blade back face, a slide connecting section connecting with and retracting the replaceable blade toward the rear side, and a back side protruding section protruding on the back side in a thickness direction. When attached, the replaceable blade elastically deforms to curve in the thickness direction, the slide block presses toward a main body block side in the thickness direction by elastic force of the replaceable blade, and the back side protruding section engages with a main body block engaged section.

Abstract: A knife sheath is disclosed. In some embodiments, a knife sheath includes a knife opening to receive a knife having a light source, and an internal cavity to sheath a blade of the knife, and at least one light channel near the knife opening to align with the light source when the knife having a light source is sheathed in the knife opening, the at least one light channel configured to allow light from the light source to pass through the knife sheath while the knife is placed in the knife sheath.

Abstract: A sheath having an elongated lower portion having first and second sides joined along opposing edges to form a pocket, a middle portion and a top portion comprising only the first side, an elongated resilient metal strap joined on a first end to the middle portion of the first side and a resilient snap connector, with a first portion of the resilient snap connector located proximate a second end of the resilient metal strap, the first portion releasably connects to a second portion of the resilient snap connector located on the middle portion of the second side thereby preventing removal from the knife from the pocket and wherein the elongated resilient metal strap becomes relatively straight, parallel to the first and second sides when the first and second portions are released from one another.

Abstract: A utility knife comprises a body with a knife blade storable within the body and one or more magnets coupled to the knife body. The magnets are able to be embedded within the body or embedded with an adapter that is configured to removably couple with the utility knife. In some embodiments, the knife blade folds out from a side of the body and into an operable position. Alternatively, in some embodiments, the knife blade slides out of a top of the body and into the operable position. The utility knife is able to magnetically couple with a base comprising a magnetically attractable surface. The utility knife is securable to the base in a vertical orientation and a horizontal orientation.

Abstract: A surgical knife safety handle device comprises a handle body being essentially solid. A movable guard engages with the body for longitudinal movement between an extended position and a retracted position. The guard encloses a knife blade. The operation is an intuitive push/pull to extend or retract guard. The guard is formed of a clear material with a low profile that does not interfere with vision in use. The guard includes a leaf spring. The spring has a hemispherical protrusion on its underside that engages with a slot on the handle for positive engagement and an audible “click” when it seats.

Abstract: A handheld cardboard scoring device includes a handle; an arched, stiff frame extending from the handle; a circular scoring blade having a central axis and an outer edge; a hub on the frame that rotatably connects to the axis of the blade; and a plurality of teeth along the outer edge of the blade. There may be substantially five teeth per inch on the outer edge of the circular scoring blade.

Abstract: A folding knife with retractable pocket clip that moves in an arc between retracted and deployed positions generally within the same pivot plane as a pivotally folding blade and whose movement between retracted and deployed positions is coordinated through direct contact with the blade so that the clip is automatically deployed for use as the blade is pivoted into a storage position and automatically retracted when the blade is pivoted to a position for use. The pocket clip is configured to be uniquely sheltered from snagging hazards and to secure the folding knife to a pocket by means of a unique retentive characteristic resulting from localized tension advantageously generated along the pocket edge and maintained by compression exerted upon the body of the knife as it rests within the pocket.

Abstract: A pole saw includes a long handle with end adapter, a blade-carrying component pivoted to the end adapter for movement between an extended use position and a handle-adjacent storage position, and a saw blade fixed to the blade-carrying component. The end adapter and holding component are cast aluminum for strength and light weight, and are pivoted together about an offset axis so that the blade and blade-carrying component are positioned adjacent the handle in a partially protected position when collapsed for storage. A folding lock mechanism includes an anchor that engages a saw-holding bolt on the blade-carrying component, and a wing nut that can be tightened to secure the sheath on the blade.

Abstract: A guarded surgical knife handle includes a handle portion with a blade holder, a chamber within the handle portion, and a slot. The guarded surgical knife handle also includes a guard having an open distal end slidably mounted within the handle portion that can slide longitudinally between an unguarded position and a guarded position. The guard is sized to surround the blade in the guarded position. The guarded surgical knife handle also includes a latch that latches the guard when the guard is slid into the guarded position and a first button that disengages the latch. The guarded surgical knife handle includes a bias member that forces the guard in a proximal direction to an unguarded position when the latch is disengaged along with a second button extending through the slot used to slide the guard in a distal direction into the guarded position.

Abstract: A device for spiral cutting fruit and hard vegetables like apples, radishes, carrots, beets and cucumbers, comprising: a cutting device; and a hand operated fixation and drive device for the cutting material which hand operated fixation and drive device is arranged above the cutting device, wherein a housing is configured as a can and includes a cover arranged on the housing, wherein which the fixation and drive device is supported in the cover, and wherein the cover is provided with an extension that is handle shaped and arranged at a circumference of the cover.

Abstract: A cutting instrument (10) comprising a handle (12) having a side-to-side thickness less than its depth in a direction transverse to its thickness and a sheath (16) movable longitudinally along the handle between a distal protective position to cover a blade (14) at a distal end of the handle and a proximal use position to expose the blade for cutting, wherein the sheath and the handle have complementary engagement formations (36,38,40) that define the protective position and the use position, the engagement formations comprising at least one engagement formation (36,38) on the handle being located on at least one edge region (26) of the handle between the sides.

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 knife has a blade holder in a housing adapted to hold a blade and shiftable between a first cutting position with the blade projecting a little from the housing and a second position projecting somewhat more from the housing. An actuating element shiftable in the housing between a starting position and an actuating position is effective on a connecting linkage such that in a first orientation force is transmitted to the blade holder to retain the blade holder against moving into its retracted safety position from its first cutting position and in the second orientation the linkage does not prevent the blade holder from moving into its safety position from its second cutting position.

Abstract: A utility knife includes an elongaged handle having an internal cavity, two opposing ends and a side having at least one locking opening. A shuttle is sized to slide within the cavity and has a side surface. The shuttle has a spring-loaded locking button projecting from the side surface and into the handle. The button is sized and shaped to selectively project into the at least one locking opening. The shuttle is bonded to a conventionally shaped utility knife blade of the type which includes two opposing cutting regions. The shuttle can slide within the handle between the two opposing ends so that both cutting regions of the blade can be easily used as necessary. This utility knife is meant to be lost cost and disposable, but offers the user TWO cutting edges, doubling its effective use.

Abstract: A utility knife has a handle generally defining a handle axis and a remote end provided with an opening. A carriage is slidably mounted within the handle for selective movements through the opening between a retracted position in which the carriage is substantially fully received within the handle and a fully extended position in which the carriage is fully extended through the opening to increase the effective length of said handle by a distance ?l. A blade mounted on the carriage shares the movements of the carriage and has an operative portion that can fully penetrate a work to be cut when the handle axis is inclined at an angle ? relative to a surface of the work. A finger of a user most proximate to the work surface is positionable a distance h above the work surface during normal use of the utility knife, ?l and ? being selected so that the distance ?l is generally greater that 1.0 inch and the angle ? is equal to at least 35°.

Abstract: The disclosure relates to a portable power tool comprising at least one coupling device which can be coupled to a power tool separation device comprising at least one cutting unit and at least one guide unit for guiding the cutting unit. The portable power tool comprises at least one storage device which is provided to stow the machine tool separation device at least when it is coupled to the coupling device.

Abstract: A pole saw includes a long handle with cast end adapter, a cast saw-holding component pivoted to the end adapter for movement between an extended use position and a handle-adjacent storage position, and a saw blade pivoted to the holding component for movement between a blade-use position and a blade-protected position. The end adapter and holding component are cast aluminum for strength and light weight, and are pivoted together about an offset axis so that the blade and blade-holding component are positioned adjacent the handle in a partially protected position that is very compact; thus, no disassembly or separate tools are required. A folding lock mechanism includes a hook and pressure pad that cooperate for secure locking in the extended use position. An adjustable set screw eliminates blade looseness when in the use position.

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: In general, it can be appreciated that the specific type of knife is an “Out the Front” (OTF) knife whereby the blade is operatively configured to reposition longitudinally forwardly with respect to the handle. The handle in general has an interior surface forming an interior chamber. In addition to the handle and blade, the knife further includes a stored energy mechanism. In general, the stored energy mechanism permits the OTF knife to operate with assisted opening technology with a linear-actuating-type system. Described herein are a few embodiments by way of example of the broadly claimed concept, and it can be appreciated that numerous types of assisted opening technologies, such as a stored energy mechanism, can be incorporated.

Abstract: A cutter includes a replaceable blade detachably attached to a cutter body. A main body block of the cutter body includes a container section that houses a slide block, a main body supporting section, and a main body connecting section that connects with the replaceable blade. The slide block includes a rear-side supporting section, a slide connecting section, a flexible section, and a wing section. A front side retaining section that retains the wing section from a front side is formed in at least one side of the container section in a height direction, and the front side retaining section includes a protruding engaging section. In an attached state, the wing section is engaged from a foreside by the protruding engaging section, and the wing section is released from the protruding engaging section by bending the flexible section of the slide block from the attached state.

Abstract: A bagel slicer that comprises an oblong skirt and a pair of blades disposed within a cavity defined by the skirt. The oblong skirt has a length, a width, a top edge, a bottom edge, a wall connecting the top edge to the bottom edge, a top opening defined by the top edge and a bottom opening defined by the bottom edge where the top opening is substantially parallel to the bottom opening. The upper and lower blades are substantially parallelly disposed and offset vertically to form an overlap, each having a cutting edge. The cutting edge of each of the upper and lower blades is aligned with the bottom opening of the skirt and each blade is perpendicular to the bottom opening and substantially parallel to the skirt within the cavity.

Abstract: A knife has a handle with an enlarged proximate end grip portion having ribbed and unribbed surfaces. The handle has oppositely disposed thumb receiving concave unribbed surfaces at the distal end for alternate pinch-grip functions. The knife blade has a cutting edge that extends proximately below and adjacent the enlarged grip portion, and is proximately disposed with respect to the thumb receiving pinch-grip concave surfaces. The knife provides diverse impaired grip cutting functions with comfort and with fatigue.

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 safe utility knife is provided having a housing, a blade sliding seat, a pushing force generator, an acceleration detector, a stopper, a stopper pushing portion, and a sliding switch. When activated with a blade protruding out, and an acceleration due to a sudden dropping movement occurs, the acceleration detector moves from a low acceleration position to a high acceleration position. It also presses down the sliding switch and the stopper so that the stopper moves from a locking position to a non-locking position. The blade sliding seat is pulled by the pulling force generator to a blade storing position to protect against accidental injury. The knife can be operated by one hand and is suitable for regular blades available on the market. In addition, it can be switched to manual automatic blade returning mode.

Abstract: A peeling tool includes a main shaft, a handle affixed to a first portion of the main shaft, a nose rotatbly coupled to a second portion of the main shaft, a blade assembly positioned intermediate the handle and the nose about the main shaft, the blade assembly including a first arcuate blade and a second arcuate blade defining a space for the passage of a slice of a food product, and a peel thickness adjustment mechanism, the peel thickness adjustment mechanism being actuatable to adjust a dimension of the space.

Abstract: A housing including a honing device, a blade sharpener, a blade restraining mechanism, and a biased blade guide being received in a scabbard or a knife block. Wherein a knife is honed and sharpened upon insertion into the housing, or upon withdrawal from the housing, or both, and wherein the blade is retained within the housing after insertion therein.

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: 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 safety knife for ophthalmic surgical procedures has handle to which a blade holder is attached at one end, holding a pre-installed surgical blade. A blade guard is extended and retracted responsive to the movement of an actuator button on the handle. The blade assumes a curved shape as it is extended, to shape itself about and protect the blade. When the guard is retracted it straightens to allow it to slide into the handle, exposing the blade for use.

Abstract: A fixed-blade, folding, or switch blade knife having a handle, or a tool, wherein the handle includes a hook to enable the user to rapidly grasp and acquire the knife or tool.

Abstract: The present invention first provides a utility knife with a replaceable blade, comprising a knife handle, a blade holder, a blade and a locking device that locks the blade in the blade holder. The blade holder and the blade are enabled to switch between a first position and a second position. When the blade holder and the blade are in the first position, the blade is used for cutting operation, and when the blade holder and the blade are in the second position, both the blade holder and the blade are received in the knife handle. The utility knife further includes a restriction means which is thus arranged as, when the blade holder is in the second position and the locking device is in unlocked state, the restriction means is used for preventing the detachment of the blade from the blade holder by confining the movement of the blade relative to the blade holder.

Abstract: A hand tool (100) including a replaceable knife cartridge (110) is disclosed herein. The body (120) of the hand tool operatively engages the knife cartridge such that the blade (111) of the cartridge is positioned for cutting packaging such as blister pack without damaging contents contained by the packaging.

Abstract: A scalpel, in particular for ophthalmologic applications, having a handle head and a blade, wherein the blade, which includes a blade shank and a blade face, is inserted into a handle head of the handle, and at least one cutting edge is formed on the blade face, wherein the blade shank is configured together with the blade face as a body on which a continuous smooth rear surface is formed, whereby the front of the body opposite from the rear surface forms a cylindrical surface in the area of the blade shank and forms the top of the blade in the area of the blade face, and the end of the handle head has two surfaces that are slanted with respect to each other and that abut, like a roof edge, in an edge that is perpendicular to the axis of the handle, and whereby, in a first of the slanted surfaces, there is an opening for inserting the blade, whereby the inserted blade comes to lie in the opening in such a way that the smooth rear surface is flush with the first slanted surface.

Abstract: The invention relates, inter alia, to a knife with a housing comprising a first housing part (12) and a second housing part (13) and also a blade carrier (20), in which a blade (15) is retained, wherein the first housing part (12), in particular for a (blade changeover, can be released from the second housing part (13) and fastened thereon again, wherein the blade carrier (20) is mounted in the housing (11) such that it can be moved between a basic position and a cutting position. The special feature is that the blade carrier (20) is connected to the second housing part (13) in a non-releasable manner, and that the blade carrier (20) and the second housing part (13) form a preassemblable structural unit which can be fastened on the first housing part (12) in a releasable manner.

Abstract: According to a first aspect, the invention relates to a cutting tool, in particular for severing planar materials, such as paper, cardboard, films, strips, and mats, as well as bands, ropes, and similar material, comprising a gripping area and a tool head (23), wherein a guide channel (24) is formed between guide surfaces (25a, 25b) of the tool head (23), wherein the material to be cut can be fed to the cutting edge (S) of a blade (15) only through the guide channel (24). The invention is characterized in that the blade (15) can be moved between a safety position, in which a cutting edge (S) of the blade (15) is protected by a cover so as to be inaccessible to a user, and a cutting position, in which the cutting edge (S) is accessible only through the guide channel (24).

Abstract: A diver's rescue knife including a handle with a threaded stud at the butt end, a hammer screwed onto the stud and mounting a hard pin with a sharp point.

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 with an opening, a blade carrier coupled to the housing and repositionable in relation to the housing, and an actuator repositionable in relation to the housing and coupled to the blade carrier such that movement of the actuator to an actuator blade deployment position repositions the blade carrier toward the opening and provides mechanical advantage in deploying the blade or maintaining the blade in a deployed position.

Abstract: A cutter (or other hand tool) includes a housing with a handle that is sized and shaped to fit in the palm of a hand, the housing being configured to provide multiple hand-housing interfaces favorable to natural accommodation of the hand while using the cutter (or other hand tool). The hand-housing interfaces can include one or more interfaces that accommodate the hand at a neutral wrist position.

Abstract: The invention relates to a tool, such as a saw or a knife, comprising a hollow handle and a blade member that is movable alternatively into a storage position or a position of use, in the storage position the blade member being surrounded by the handle and protected inside it and in the position of use the blade member protruding from the handle as an extension of the handle, the blade member being lockable by locking means in relation to the handle either into the storage position or the position of use. To improve the safety and properties of use of the tool, the end of the blade member in the direction of the handle comprises a hanger member for suspending the tool, the hanger member protruding from the handle when the blade member is in the storage position.

Abstract: A safety cutting device for use in removing portions of an article from an injured person comprises a housing body and a blade, moveably coupled to the housing body. The blade has at least a spine and a cutting edge. The housing body includes an opening formed therein in which at least a portion of the blade can be stored when not in use. A safety guard is coupled to or formed integrally with a portion of the edge of the blade, the safety guard having a substantially smooth outer edge and being sized and shaped to allow the spine of the blade to safely slide along a body part of an injured person's body while restricting the cutting edge of the blade from contacting the injured person's body.

Abstract: Embodiments herein provide an involute slicer having a body portion and a blade coupled to the body. The involute slicer may further include an anvil to provide structural support to a workpiece. The blade may rotate about an axis. As the blade rotates, the blade may pass next to the anvil, thereby cutting the workpiece. The blade may include a cutting edge with a radius that increases from a proximal end to a distal end of the cutting edge. For example, the cutting edge may have an involute shape. The involute shape of the cutting edge provides a radially expanding cutting edge as the blade is rotated. In some embodiments, the blade may include a plurality of cutting edges, such as two cutting edges.

Abstract: A knife has a housing, a blade carrier supported in the housing and adapted to hold a blade, and an actuating element coupled to the blade carrier. A handle can move between a nonactuated position and an actuated position and is coupled to the actuating element such that on movement from the nonactuated position to the actuated position the actuating element displaces the blade carrier from a safety position in which blade mounted on the blade carrier is retracted into a seat of the housing in a first cutting position in which the blade projects out of the housing. A pivot joint connects the actuating element with the blade carrier. A guide supports the blade carrier in a translatory and a rotatable manner on the housing.

Abstract: A tool system is presented. The tool system includes a tool body sized and dimensioned to fit comfortably in a human hand, and includes a plurality of interchangeable tool cartridges. Some of the tool cartridges include a tool bit cover capable of remaining in a closed, locked position sheathing a tool bit. Once installed, the tool bit cover can be unlocked via actuation of a trigger disposed on the body of the tool or on the cartridge. Preferably, the tool bit cover unsheathes the underlying tool bit due to pressure or force of a work surface.

Abstract: A cutter formed by detachably attaching a replaceable blade to a cutter body. The cutter body can include a main body block and slide block. The main body block includes a main body supporting section supporting the replaceable blade back face, and a main body connecting section connecting with the replaceable blade from the front face side. The slide block includes a rear side supporting section supporting the replaceable blade back face, a slide connecting section connecting with and retracting the replaceable blade toward the rear side, and a back side protruding section protruding on the back side in a thickness direction. When attached, the replaceable blade elastically deforms to curve in the thickness direction, the slide block presses toward a main body block side in the thickness direction by elastic force of the replaceable blade, and the back side protruding section engages with a main body block engaged section.

Abstract: The utility knife device generally comprises a sheath, covering a portion of the user's hand and a blade housing which attach together at a connection point. The blade housing is made up of a casing which preferably encloses the user's index finger, a blade housed within the casing and a trigger which extends out of the casing and manipulates the blade. The blade is capable of extending outward from the casing being held in place for use. The blade is also capable of automatically retracting within the casing so that the blade is not exposed.

Abstract: A guarded surgical knife handle includes a handle portion with a blade holder, a chamber within the handle portion, and a slot. The guarded surgical knife handle also includes a guard having an open distal end slidably mounted within the handle portion that can slide longitudinally between an unguarded position and a guarded position. The guard is sized to surround the blade in the guarded position. The guarded surgical knife handle also includes a latch that latches the guard when the guard is slid into the guarded position and a first button that disengages the latch. The guarded surgical knife handle includes a bias member that forces the guard in a proximal direction to an unguarded position when the latch is disengaged along with a second button extending through the slot used to slide the guard in a distal direction into the guarded position.