Abstract: A handle. The handle can include a body and a pivoting head pivotally coupled with the main body at a pivot axis. The pivoting head can include at least two mating parts defining an interior channel. A pivot spring can include a first coil spring and a second coil spring and a main bar portion that is at least partially disposed in the interior channel and interacts with the pivoting head to bias the pivoting head into a rest position. The main bar portion also can couple the first and second coil springs together in a spaced.

Abstract: A cigar tool includes a casing with a hole through the casing that defines a perimeter. A pair of blades are pivotally connected to the casing, and each blade has a cutting edge. The pair of blades has a closed position in which the pair of blades overlap one another within the perimeter, a cutter position in which the pair of blades are separated from one another, outside the perimeter, and the cutting edges are within the casing, and a deployed position in which the cutting edge of one blade is outside the casing. A spring is operably engaged with each blade to bias the cutting edge of each blade out of the casing. An actuator extends through at least a portion of the casing and has a hold position that prevents movement of the pair of blades with respect to the casing and a release position that permits movement of the pair of blades with respect to the casing.

Abstract: A cigar cutter having a handle with a transverse cigar hole and a cutting blade configured to cut a cigar tip placed in the cigar hole. The cutting blade having a central lock portion and pivotally connected to the rear end of the handle by a pivot shaft. The cigar cutter further having a lock bar that is movable between a first position and a second position, wherein the first position locks the cutting blade when in a closed position, and moving the lock bar to the second position releases the cutting blade from being locked in the closed position.

Abstract: A cutting device comprising: a housing containing a cutting blade with a portion of the cutting blade extending from the housing; a safety guard having an end positioned proximate to the cutting blade portion extending from the housing; and a spring-biased safety guard release connected to an elongated member, the elongated member in communication with an arcuate, flat spring extending from a second end of the safety guard. In this manner, as soon as pressure is released from the cutting blade, the safety guard returns to its home position even if the safety guard release button is still being pressed. Thus, the cutting blade is only fully exposed without the safety guard in place when the cutting blade is being used to cut an article.

Abstract: A knife includes a handle that includes a gripping surface; one or more blades positioned in one or more recesses of the handle that extend from an opening of the handle; a guide coupled to the blade near a distal end of the blade opposite the proximal end, the guide including a contoured surface configured to engage a workpiece wherein a portion of the guide is pointed and configured to puncture the workpiece and another portion of the guide is configured to smoothly abut an underside of the workpiece once the guide has been inserted into the workpiece, and the handle further includes cut-away regions just ahead of the leading edge of cutting edges of the one or more blades, the cut-away portions configured to provide relief for bunching sections of a workpiece being cut by the knife.

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 knife includes a handle that includes a gripping surface; a blade slide positioned in a recess of the handle that extends from an opening of the handle through a cavity within the handle; a blade coupled to the blade slide near a proximal end of the blade and extending through the recess and into the opening when the blade slide is in the retracted position; and a guide coupled to the blade near a distal end of the blade opposite the proximal end, the guide including a contoured surface configured to engage a workpiece to extend the blade slide a distance from the retracted position to an extended position such that the blade is extended from the opening of the handle, the blade slide biased to move from the extended position to the retracted position.

Abstract: A folding knife for applying a cutting action includes a blade assembly having a guard configured to cover the cutting edge of the blade when the knife is not in use. The guard is maintained in a normally blade covered position by a resilient member. The blade guard has a guard actuator for providing at least one motion for a user to move the blade guard from the normally blade covered position to an un-guarded or cutting position. The knife further includes an actuator for unlocking the blade assembly from the closed position to a locked open position. Upon depression of the actuator, the blade assembly will automatically open to a locked open position from a locked closed position.

Abstract: The invention discloses a utility knife preventing its blade from accidental detachment. Prior utility knives may lose constraint on the blade due to tilting of the retaining member when the blade receives external force from the blade holder pulling outward, causing the blade to detach accidentally from the blade holder. In the present invention, the line of the action force in the engagement area of blade and retaining member extends over the axis of axle pin where the retaining member is mounted, so that when the blade receives external force pulling it outward from the blade holder, a counterclockwise torque is formed to the retaining member to allow the retaining member constrain the blade more tightly and thus prevent the blade from accidental detachment.

Abstract: A utility knife including a handle having a slot that extends through a bottom side of the handle and a first blade holder that is pivotal with respect to the handle between an extended position where a blade is exposed and configured to cut a work-piece and a folded position where the blade is within the slot of the handle. The knife further includes a spare blade holder including a recess configured to receive a spare blade, and the spare blade holder is pivotal with respect to the handle between an open position where the recess is exposed to allow the spare blade to be removed from the spare blade holder and a closed position where the recess is within the slot of the handle to inhibit removal of the spare blade from the spare blade holder.

Abstract: A pocket knife (or pocket safety cutter) having a housing (or handle) and a folding/blade holder portion includes or is configured with one or more of, for example: a blade change mechanism with multiple safety features, a locking mechanism (for the folding/blade holder portion), and independently operable protective guards (for the folding/blade holder portion).

Abstract: A multifunctional hairdresser's tool, with which, in combination with an assortment of replaceable blades, different cutting techniques can be carried out. The tool comprises a holder (1) with a handle (3) in which a blade is held by a coupling system. The blade can be fixed in various positions. The assortment of replaceable blades varies from an adapted design of a known type of blade to different completely new types of blades.

Abstract: A retractable blade knife includes a body, a handle lever and a blade holder assembly. The blade holder assembly is mounted to the distal end of the body to pivot between a retracted position in which a cutting edge is concealed within the body and an extended position in which a cutting edge is exposed. The handle lever is mounted to the body at a pivot joint that is located between the opposite ends of both the lever member and the body so that the handle lever can pivot between an open position and a closed position. A pin at the distal end of the handle lever is received for sliding movement by a slot in the blade holder assembly so that when the handle lever is urged from the open position to the closed position, the blade holder assembly rotates from the retracted position to the extended position.

Abstract: The invention relates to a pocket tool with a housing, a compartment region, pins (11a, 11b) and an implement (13) interchangeably mounted on one of the pins (11a, 11b) by means of a coupling mechanism (22) and which can be moved by means of a pivot bearing (18) between an inwardly pivoted transport position and an outwardly pivoted functional position, which is mounted against a spring element and can be moved relative to the pin (11a, 11b) into an uncoupling position and removed from the pocket tool. The coupling mechanism (22) has a guide track guiding the implement (13) in the uncoupling position at an angle with respect to a longitudinal axis (68) of the housing (2) during its uncoupling movement along the compartment region.

Abstract: A folding knife (or tool) having opposing handle halves and at least one knife blade (or tool) pivotally attached there between by an adjustable pivot. The adjustable pivot is configured to rigidly connect the opposing handle halves at the pivot point under load from fully tightened fasteners. The distance between opposing handle halves is both adjustable and rigidly fixable, resulting in improved assembly resistance to deflection from shear and torsion loads and reduced tendency of the blade (or tool) to loosen under hard use.

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 utility knife has a handle and a blade holder that holds a utility blade for selective removal and replacement of the utility blade. The blade holder is pivotally carried by the handle for pivotal movement in an arcuate path relative to the handle between a retracted position and an extended position.

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 plurality of hand tools for use in a wide variety of different applications for applying masking tape to various surfaces prior to painting, staining, detailing, sanding and the like wherein one embodiment includes a removably attachable blade member associated with one end portion of the tool and a removably attachable roller member or nudger member associated with the opposite end portion of the tool, and an extension/retraction mechanism for extending and retracting the blade member. Another embodiment of the present hand tool includes a handle member adaptable for receiving any combination of removably attachable roller members, nudger members, and blade members for attachment to the opposite end portions of the handle member. A wide variety of different blade configurations, roller member configurations, and nudger member configurations can be removably attached to the opposite end portions of the present tools.

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 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 utility knife has a counter-reciprocating blade and blade guard. Preferred utility knifes have an internal mechanism comprising several components that are advantageously coupled via one or more pivot points. Though an appropriate arrangement of pivot points, both stationary pivot points and translating pivot points, the blade and guard counter-reciprocate such that forced retraction of the guard results in forced extension of the blade. While the internal mechanism is in a locked position, the guard locked. Actuation of a trigger can unlock the internal mechanism, which releases the blade guard. Preferably a single actuation of the trigger provides for a single use of the knife.

Abstract: A utility knife having a handle and a blade holder which is pivotally mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder includes a main wall and guard wall mounted together and adapted to receive a blade therebetween and a locking lever pivotally mounted on the blade holder to lock the blade in place.

Abstract: A method and apparatus for a knife having a handle, a blade and a locking mechanism whereby the mechanism provides a pivot point between the handle and blade holder and at least two selective locking positions between the blade and the handle. In one embodiment the knife is a utility knife including a blade holder that houses the blade and pivots with the blade relative to the handle.

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 releasably locking mechanism for locking and releasing the shank of a blade or other implement snugly within a receiver, wherein a magnetized ball extends through aligned holes in the shank and the first wall of the receiver, and seats in a smaller hole in the second wall of the receiver so that the equator of the ball is positioned on the side of the shank nearer to the second wall of the receiver. Unseating the ball and repositioning its equator to the opposite side of the shank, nearer to the first wall of the receiver, facilitates removal of the ball to allow removal of the shank from the receiver.

Abstract: A folding knife for applying a cutting action is provided that includes a blade assembly having a guard configured to cover the cutting edge of the blade when the knife is not in use. The guard is maintained in a normally blade covered position by a resilient member. The blade guard has a guard actuator for providing at least one motion for a user to move the blade guard from the normally blade covered position to an un-guarded or cutting position. The folding knife comprises a housing having the blade assembly locked in a closed position and is pivotably associated with the housing. The knife further comprises an actuator for unlocking the blade assembly from the closed position to a locked open position. The actuator further comprises a locking tab and the blade assembly further comprises a locking slot. The locking tab is configured to lock the blade guard in the un-guarded or cutting position. The housing further comprises a resilient member urging the blade assembly in the open position.

Abstract: A multipurpose folding hand tool including a tool holder permitting exchanges of blades. The tool may include a folding scissors including a spring that is moved into operative engagement with a scissors handle to open the scissors handles apart from each other only as the scissors approaches an extended, operative position with respect to the handle of the folding land tool, within which it may be stowed. A resilient grip member is incorporated in one of the handles of the folding multipurpose hand tool. A wire cutter and a crimping tool are located on pliers jaw tangs, between the pliers pivot and the foldable handles of the tool.

Abstract: A folding pocket utility knife includes a front handle, and a rear handle pivotally mounted to the front handle via a pivot. The rear handle contains a cavity configured to contain at least a portion of the front handle within the cavity. A blade holder is mounted inside the front handle for holding a blade, and a bendable blade strap is attached to the blade holder and to the rear handle. The blade strap extends around an outer circumference of the pivot to move the blade holder from a closed position where the front handle is in the cavity and the blade is completely within the front handle, to an open position where the front handle is not in the cavity and the blade extends from a terminal end of the front handle.

Abstract: A folding utility knife with a blade lock and release mechanism is provided, and the knife comprises: a handle pivotally connected to a blade holding compartment, the handle comprising at least two side walls forming a space, the space of the handle is designed to encase at least a portion of the blade holding compartment during a folded position, the blade holding compartment comprising at least one side wall having at least two internal cavities, the first cavity for holding a blade with at least two indentations, at least a portion of the blade holding compartment designed to be situated within the space of the handle during a folded position, the blade holding compartment comprises a front end, a rear end and a faceplate for covering the internal cavities, the front end of the blade compartment holder and at least a portion of the faceplate forming an opening at the front end of the blade holding compartment which allows a portion of the blade to protrude from the blade holding compartment; and a blade lo

Abstract: A folding utility knife has a handle and a blade holder pivotally mounted on he handle. The blade holder is movable between (i) a closed position with the blade holder pivoted inwardly toward the handle, (ii) a cutting position with the blade holder pivoted outwardly relative to the handle, and (iii) a blade release position located between the closed position and the cutting position. A blade release actuator is located on the blade holder and is movable between (i) a first position preventing release of a utility knife blade located on the blade holder, and (ii) a second position permitting release of a utility knife blade located on the blade holder.

Abstract: A utility knife includes a handle and a pivotably connected blade retainer for retaining a blade. An external, symmetrically toothed gear is fixed relative to one of the handle or the blade retainer, and a locking mechanism is associated with the other. The locking mechanism cooperates with the gear to lock the blade retainer in one of a plurality of fixed positions and includes pawls located in channels having converging ends. A manually actuable release mechanism is associated with the locking mechanism for unlocking the blade retainer to permit pivotal movement. Furthermore, a manually actuable blade release mechanism is associated with a blade locking mechanism contained in the blade retainer, for locking and releasing the blade when exchanging a dull blade for a replacement blade.

Abstract: A knife is provided including a first side and a second side where the first side may be removably coupled to the second side. The knife further includes a blade removably secured to the handle and rotatable about a pivot point between an open position and a closed position. A manually-releasable fastening device disposed on the handle is adapted to secure the first side to the second side and to secure the blade to the handle, while remaining attached to the handle.

Abstract: A foldable knife includes a handle, a frame, a cartridge and a blade-driving device. A leaf spring is attached to the frame. The frame is connected to the handle so that it can be pivoted into and from the handle. The cartridge is connected to the frame so that it can be pivoted from the frame for receiving at least one blade and into the frame for feeding the blade. The leaf spring reaches the blade through a slot in the cartridge. The blade-driving device includes a plate, a switch and a connector. The plate is in firm contact with the blade. A primary portion of the switch is located outside the frame and a secondary portion of the switch is inserted into the frame through a slot. The connector connects the plate to the secondary portion of the switch so that the blade is movable via operating the switch.

Abstract: A utility cutter includes a cutter blade, a cutter handle, a blade frame, and a blade replacement arrangement. The blade frame includes a first and a second frame member pivotally mounted with each other to define a blade receiving cavity that the cutter blade is substantially retained at the blade receiving cavity, wherein the blade frame is pivotally mounted to the elongated cutter handle for folding between a folded position and an unfolded position. The blade replacement arrangement is operatively coupled with the first and the second frame member for normally locking the first and the second frame member with each other. When the blade frame is in the unfolded position, the blade replacement arrangement is adapted to unlock the first frame member, such that the cutter blade is capable of being conveniently and safely replaced at the blade receiving cavity without sliding movement of the cutter blade.

Abstract: A multipurpose folding hand tool including a tool holder permitting exchanges of blades. The tool may include a folding scissors including a spring that is moved into operative engagement with a scissors handle to open the scissors handles apart from each other only as the scissors approaches an extended, operative position with respect to the handle of the folding hand tool, within which it may be stowed. A resilient grip member is incorporated in one of the handles of the folding multipurpose hand tool. A wire cutter and a crimping tool are located on pliers jaw tangs, between the pliers pivot and the foldable handles of the tool.

Abstract: A safe knife sheath comprising a sheath body is mounted inside the sheath body movable in a sliding motion and a movable blade support. The front part of the sheath body has a push button, the lower part of which is connected to a positioning element. A positioning groove corresponding to the positioning element is disposed in the lower part of the blade support. A positioning channel is disposed inside the sheath body on the top. A positioning lobe corresponding to the positioning channel is disposed on the top of the blade support. A first reset spring is connected to the top of the push button at one end, and the other end of which is fixed in the upper end of the sheath body. A trapezoidal piece is disposed in the back of the blade support. A second reset spring is disposed on the lower side of the trapezoidal piece. One end of the second reset spring is fixed in the lower end of the sheath body and the other end is fixed on the inner side of the sheath body.

Abstract: A foldable knife having a handle and a blade holder movably mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder has a blade locking mechanism.

Abstract: A utility knife in accordance with the present invention combines a cutting tool and a hole punch into a single compact, efficient tool. The utility knife includes a recess into which the cutting blade is retracted and another recess to store a hole punch. The hole punch pivots from one end the body so that a piece of material to be punched can be placed between the hole punch and the body. The hole punch is pivoted towards the body to punch through the material. The punch mechanism pushes confetti from the material into a confetti storage cavity within the body. A user can open the confetti storage door to discard the confetti stored within the body. The present invention also allows a user to store extra cutting blades within a recess in the hole punch arm.

Abstract: A foldable knife, comprising a blade, a knife head and a handle. The knife head has a movable part which can be pushed to press on a locking part. The locking part has two ends, one end is rotably fastened by a bolt to the knife head and another, a free end, has a catch. The blade has a notch on an edge opposite to a cutting edge. The catch corresponds to the notch. The blade may have two or more notches. The handle may be hollow and knife head is rotably fastened on the handle by a bolt. The knife head and the blade can be rotably folded at least partially into the handle.

Abstract: A foldable knife having a handle and a blade holder movably mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder has a blade locking mechanism.

Abstract: A multipurpose folding hand tool including a tool holder permitting exchanges of blades. The tool may include a folding scissors including a spring that is moved into operative engagement with a scissors handle to open the scissors handles apart from each other only as the scissors approaches an extended, operative position with respect to the handle of the folding land tool, within which it may be stowed. A resilient grip member is incorporated in one of the handles of the folding multipurpose hand tool. A wire cutter and a crimping tool are located on pliers jaw tangs, between the pliers pivot and the foldable handles of the tool.

Abstract: A foldable tool retainer capable of updating the tool easily comprises an upper casing sheet; an upper pad; a work tool; a lower pad; a resisting sheet; and a lower casing sheet. When updating the work tool, it is only necessary to press the upper button to drive a buckling end of the upper control sheet to separate from the edge of a rotary shaft of the resisting sheet so that the lower pad can rotate around the ratchet shaft of the lower casing sheet again and the rotary shaft moves out of the notch of the upper pad. Then other components are detached along a sequence of actions reversing to the assembly process.

Abstract: A utility knife having a handle and a blade holder movably mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder has a blade holder mechanism thereon and a finger support. The handle also has a blade storage compartment.

Abstract: A utility knife having a handle and a blade holder which is pivotally mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder includes a main wall and guard wall pivotally mounted on the main wall to pivot from an open position to a closed position overlying the main wall. The main wall being adapted to hold a blade so that a blade is interposed between the main wall and guard wall when the guard wall is in its closed position.

Abstract: A utility knife having a handle and a blade holder which is pivotally mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder includes a main wall and guard wall pivotally mounted on the main wall to pivot from an open position to a closed position overlying the main wall. The main wall being adapted to hold a blade so that a blade is interposed between the main wall and guard wall when the guard wall is in its closed position.

Abstract: A utility knife include a handle, a neck pivotally mounted on the handle, and a blade mounted in the neck. The neck can be folded into the handle to transport the utility knife. The blade is slidably removably inserted into and out of the handle without requiring disassembly of the handle. The blade is secured to the neck of the knife by a pivotally mounted arm.

Abstract: A utility knife include a handle, a neck pivotally mounted on the handle, and a blade mounted in the neck. The neck can be folded into the handle to transport the utility knife. The blade is slidably removably inserted into and from the handle without requiring disassembly of the handle.

Abstract: A knife having a handle component and a blade component, the blade component comprising a pair of opposed flanking side members and a replaceable blade insert confined and held therebetween. The side members are joined together by a blade insert locator and a spacer element at the region of connection to the handle so as to provide a slot forward of the handle for inserting the replaceable blade. The blade insert is configured to engage the blade insert locator and the spacer element so as to be held in the slot completely within the confines of the blade component. A blade insert locking structure is mounted on the blade component so as to be structurally and functionally independent of the handle component. The handle component and blade component may be of either the fixed or folding type and the blade insert may include a gut hook on its terminal end.

Abstract: A cutting apparatus having a pivotable blade holder includes a blade housing with an internal blade cavity with a blade opening to the outside of the housing. A blade holder adapted for removably retaining a cutting blade having a cutting edge is pivotally mounted within the housing for pivotal movement about a lateral pivot axis between a fully retracted position and a cutting position. The fully retracted position is such that the cutting edge of a cutting blade retained by the blade holder does not protrude through the blade opening to the outside of the blade housing. A cutting position is one in which the cutting edge of the cutting blade extends through the blade opening to the outside of the housing. A blade actuator accessible to a user from the exterior of the housing, when depressed, urges the blade holder into a cutting position while a biasing member normally biases the blade holder toward its fully retracted position.