Abstract: The invention relates to a multifunctional tool such as, for example, a multifunctional pocket knife which is characterized by having at least one measuring and display device (12, 14) for measuring and displaying a physical value.

Abstract: A hand tool—typically embodied as a knife—incorporates a blade or implement lock mechanism for securely locking the implement such as a blade in the open position. The lock mechanism locks the blade in the open position and allows it to be released so that the blade may be folded back into the closed position. The locking mechanism incorporates a safety mechanism that prevents the blade engaging lock from becoming unintentionally disengaged.

Abstract: A pocketknife has a handle, a blade, a safety lock and a spring. The handle has a blade seat, a cover, a cavity, a slide slot, a passage and a pivot slot. The blade is mounted pivotally in the cavity and has a proximal end, two opposite edge and two wheels. The wheels are attached respectively to the edges of the blade, and one wheel has an engaging element. The safety lock is mounted slidably in the handle and has a slide and a latch. The slide is mounted slidably in the slide slot. The latch engages detachably the engaging element in the locking wheel on the blade. The spring is mounted in the slide slot in the handle and presses the safety lock so that the latch on the slide engages the engaging element to securely hold the blade when the blade is open or closed.

Abstract: A locking tool includes a handle and an elongated tool blade having a body and a tang. The tool blade has a tang spline opening formed therein which defines an annular array of alternate spline teeth and splined slots. A transversely-extending lock member has a spline ring with an annular array of alternate spline ribs and spline grooves formed thereon complementary to the tang spline opening, and is translatable between a locked position and a released position. The tool blade is attached to the handle by the locking member such that when the lock member is in the released position, the tool blade is freely pivotable about the locking member. When the lock member is in the locked position, the spline ring engages the tang spline opening such that the tool blade is retained in one of a plurality of predetermined angular positions relative to the handle.

Abstract: A folding knife includes a handle having a distal portion and a proximal portion, and a blade rotatably connected to the distal portion of the handle. The blade may be moveable between an opened position and a closed position, and may have at least one lock member receiving recess formed therein. The folding knife may further include a lock bar pivotally connected to a medial portion of the handle and moveable between an engaged position and a disengaged position. The lock bar may include a lock member which contacts a respective portion of the blade adjacent the lock member receiving recess to define a contact point between the lock member and the blade when the blade is in the opened position and the lock bar is in the engaged position. The folding knife may also include a lock pin connected to the handle adjacent the lock member.

Abstract: In one embodiment of the present invention a laterally folding knife is described incorporating an actuator mechanism permitting the knife blade to be moved from open and closed positions without the need for a user to touch the blade. Further, the folding knife can be quickly opened or closed using a single finger or thumb. The knife blade is automatically locked in place in either open or closed position and therefore does not require a separate blade locking mechanism.

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 folding knife is provided having a handle that pivotably holds a blade member adapted to be housed within the handle in a storage state, and to be deployed to a service state by swinging laterally and forwardly in a path orthogonal to the handle. The handle is constructed of facing first and second members elongated between front and rear extremities, and defining a compartment which houses the blade member. The second handle member is pivotably joined to the first handle member in a manner to permit rearward swinging movement which opens the compartment to allow deployment of the blade member. Forwardly returning movement of the second handle member secures the blade member in its service state.

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 long blade of a knife has first and second working end portions disposed at opposite sides of the blade central portion. The central portion of the blade is pivotally attached to a handle such that, in a first position, the first working end portion is exposed for use and the second working end portion extends along the handle, and in a second position, the second end portion of the blade is exposed for use and the first end portion of the blade extends along the handle. A spring biased locking mechanism is provided to retain the blade in either of the first or second positions.

Abstract: A hand held device (2) comprising a handle (4), an operational member (6), a control member (10) for controlling the folding of the operational member (6), an arm (12) which connects the control member (10) to the operational member (6), a guide groove (14) which guides the control member (10), a first connecting formation (16) which connects the arm (12) to the operational member (6), and a second connecting formation (18) which connects the operational member (6) to the handle (4), movement of the control member (10) along the guide groove (14) causes the folding of the operational member (6) via the arm (12), in its closed condition operational member (6) is folded into the handle (4) the first connecting formation (16) is further away than the second connecting formation (18) from a first end (20) of the handle (4) that is farthest from both the first and second connecting formations (16, 18), and in its open condition the first connecting formation (16) is nearer than the second connecting formation (18)

Abstract: A tool generally consisting of a handle, an implement pivotally connected to the handle, a first magnetic element mounted on the implement having a magnetic field of a selected polarity intersecting a path disposed circumferentially relative to the axis of the pivotal connection and a second magnetic element mounted on the handle having a magnetic field of a polarity of one of the same or the opposite of the selected polarity intersecting the circumferential path whereby dependent upon the angular relationship of the handle and the implement, the magnetic fields will have the effect of one of a first interaction, producing no motive force for angularly biasing the implement relative to the handle, a second interaction producing a repellant motive force for angularly biasing the implement relative to the handle and a third reaction producing an attractive motive force for angularly biasing the implement relative to the handle.

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: An operational tools carrier, such as a pocketknife or a tool card, having a portion formed from a transparent or translucent material has been found to have various functional benefits in addition to the clear ornamental effects of transparency/translucenary. A pocketknife typically has a retaining body or frame in which tools can be stored. The frame has two side walls that lie opposite each other and that have been separated from each other by means of narrow side faces and front faces. A scale is provided on at least one of the side walls typically has retaining areas for removably holding operational tools, e.g., tools, knives, scissors. The side wall or scale forming the side wall is transparent in at least one partial area. A flat tool card formed from two plates coupled together to form a retaining are therebetween for strong flat tools thereon. At least a portion of at least one of the plates forming the tool card is transparent or translucent.

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 tool assembly includes a handle and a plurality of tools mounted to the handle. Several of the tools can be rotated between a closed position and an open position relative to the handle. The tools include a utility knife, a keyhole saw, a pry bar and a punch. Additionally, the tool assembly includes a recessed rasp for trimming an edge of a sheet of gypsum board.

Abstract: A fixed-blade knife includes a unitary blade having an implement, a tang, and a pivot region between the implement and the tang. The unitary blade is disposed between a pair of parallel and spaced-apart side pieces that pivot to cover or expose the implement. In the pivoted position wherein the implement is exposed, the side pieces form part of the handle that is used to grasp the knife. A locking structure locks the side pieces in a selectable position, and a limit structure prevents overrotation of the side pieces.

Abstract: An apparatus is provided comprising a first knife and a second knife. The first knife typically includes a first attachment device and the second knife includes a second attachment device to attach the two knives together. The first and second attachment devices can be detached to detach the two knives from each other. The first and second knives can be folding type knives. The first attachment device may be comprised of a first plate having an opening. The second attachment device may be comprised of a protrusion. The protrusion of the second attachment device can be inserted into the opening of the first plate to attach the first knife to the second 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 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 single blade foldable knife. The knife includes a planar-shaped handle section, a blade pivotably conjoined to an appropriate position at one extremity of the handle section, and a protective component disposed on the handle section at a position facing the tip of the blade cutting edge, such that when the blade is folded, the top of the blade cutting edge is nested in the protective component. In the stored position, the cutting edge totally incapable of external contact and, therefore, the protective component safeguards the user from injury due to touching the blade when the foldable knife is grasped, picked up, or carried, and prevents the scoring of other objects by the cutting edge, and protects the cutting edge from wear.

Abstract: A safety clasp knife is composed of a blade pivotally received in the handle including a top cover and a bottom cover. The blade is defined with a through hole, a first limiting notch in communication with the through hole and a second limiting notch in communication with the through hole and opposite to the first limiting notch such that a spring-driven positioning rod which is movably received in the handle is able to alternatively be received and limited in the first limiting notch and the second limiting notch to allow the blade to extend out of the handle or be received in the handle.

Abstract: A foldable knife. The foldable knife includes a flat handle and two opposite blades pivotably coupled to forward and rear ends of the handle respectively. The handle includes two resilient pieces on two opposite sides, each resilient piece being capable of being pressed by a hand of a user to fold or the resilient piece is urged against a rear end of the blade for locking the blade in a closed or opened position. The knife further includes a protective element disposed on the handle. The protective element has a height sufficient to prevent the cutting edges of the blades from contacting the hand of the user when the blades are in the closed position.

Abstract: A folding tool such as a knife or multitool has a handle defined by opposed side walls with a slot therebetween. An implement such as a blade is pivotally connected to the handle. A spring such as a liner disposed between the implement and one side wall has a longitudinal slot cut therein and opening on the end adjacent the implement attachment to define a spring arm. The slot includes a constricted zone that is preferably substantially V shaped and has an apex aligned with the pivot axis of the implement. A pin on the implement rides in the slot. When the pin is on the rearward side of the apex the spring arm applies pressure to the implement and prevents it from moving into the open position. The implement is thus safely and securely locked into the handle.

Abstract: A shock absorbing blade stop for a folding knife comprising; an elongated, cylinder shaped body, with o-ring grooves provided near its opposite ends. O-rings of a resilient material affixed to the o-ring grooves and the completed assembly located within the handle frames of a folding knife by means of location holes provided in the handle frames for that purpose. Location holes are of an inside diameter closely corresponding to the outside diameter of the mounted o-rings thereby producing a shock absorbing effect in response to the impact of a fast opening blade colliding against the blade stop. An enlarged center section of the blade stop is provided with an increased diameter slightly larger than the locating holes of the handle frames so as to capture the blade stop within the space between handle frames.

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

Abstract: A folding tool such as a knife or multitool has a handle defined by opposed side walls with a slot therebetween. An implement such as a blade is pivotally connected to the handle. A spring such as a liner disposed between the implement and one side wall has a longitudinal slot cut therein and opening on the end adjacent the implement attachment to define a spring arm. The slot includes a constricted zone that is preferably substantially V shaped and has an apex aligned with the pivot axis of the implement. A pin on the implement rides in the slot. When the pin is on the rearward side of the apex the spring arm applies pressure to the implement and prevents it from moving into the open position. The implement is thus safely and securely locked into the handle.

Abstract: A clasp knife is composed of a handle and a blade pivotally mounted on the handle. The handle has a fastening member and a locking member provided therein. The blade has a taper hole, a tongue slot, and a locking surface. When the blade is received in the handle, the fastening member is positioned in the taper hole and the locking member can abut the locking surface of the blade, so that the blade cannot be freely pivoted outwards to extend from the handle without the operation of the user. When the blade is extended, the locking member can be inserted in the tongue slot to prevent the blade from freely pivoting.

Abstract: The invention relates a foldable knife comprising a flat handle with a blade pivotably coupled to a forward end thereof; a central first opening through the handle; a resilient piece in the first opening extended from a distal end of the handle to a proximate end about the blade and having an upward slightly curved stop at an open end to lock the blade in the opened position; a second opening adjacent the first opening; and a gap disposed at an edge of the handle in communication with both the second opening and the outside. The gap can be pulled to be wide enough to allow an object (e.g., belt loop of pants) to pass through into the second opening for attaching the knife to a user.

Abstract: A multi-purpose self defense tool is provided which can be used for pinching an opponent, delivering a blow and/or as a kinetic opening folding knife by positioning a pointed hump located on the non-cutting edge of the blade against an object or the body of an opponent and dragging the tool in a rapid motion.

Abstract: A clasp knife is composed of a handle and a blade pivotally mounted on the handle. The handle has a fastening member and a locking member provided therein. The blade has a taper hole, a tongue slot, and a locking surface. When the blade is received in the handle, the fastening member is positioned in the taper hole and the locking member can abut the locking surface of the blade, so that the blade cannot be freely pivoted outwards to extend from the handle without the operation of the user. When the blade is extended, the locking member can be inserted in the tongue slot to prevent the blade from freely pivoting.

Abstract: The invention is to provide a single blade foldable knife consisting of a planar-shaped handle section, a blade pivotably conjoined to an appropriate position at one extremity of the said handle section, and a protective component disposed on the said handle section at a position facing the tip of the blade cutting edge, such that when the blade is folded, the tip of the blade cutting edge is nested in the protective component, rendering the said cutting edge totally incapable of external contact and, therefore, the said protective component safeguards the user from injury due to touching the blade when the foldable knife is grasped, picked up, or carried, prevents the scoring of other objects by the cutting edge, and protects the cutting edge from wear due to other objects.

Abstract: A folding cutting tool which includes a handle having gripping depressions and a plurality of cutting blades. The blades are rotably connected to the ends of the handle to allow them to be folded into the handle or extend from the handle during operation of the tool. At least one blade has at least one depression that aligns with a depression on the handle. Alternatively, the blades of the tool may fold far enough into the handle to not interfere with the depressions in the handle. The depressions allow for the user to adequately grip the handle to perform a cutting operation.

Abstract: The present invention relates to folding knives and implements, and more specifically to a locking mechanism used to prevent the inadvertent closing of the knife blade as well as overextension of the knife blade during use.

Abstract: A folding tool such as a knife or multitool has a handle defined by opposed side walls with a slot therebetween. An implement such as a blade is pivotally connected to the handle. A spring such as a liner disposed between the implement and one side wall has a longitudinal slot cut therein and opening on the end adjacent the implement attachment to define a spring arm. The slot includes a constricted zone that is preferably substantially V shaped and has an apex aligned with the pivot axis of the implement. A pin on the implement rides in the slot. When the pin is on the rearward side of the apex the spring arm applies pressure to the implement and prevents it from moving into the open position. The implement is thus safely and securely locked into the handle.

Abstract: A hand held device (2) comprising a handle (4), an operational member (6) which folds into and out of a side (8) of the handle (4), a control member (10) for controlling the folding of the operational member (6), an arm (12) which connects the control member (10) to the operational member (6), a guide groove (14) which is in the handle (4) and which guides the control member (10) over a path which causes the folding of the operational member (6), a first connecting formation (16) which connects the arm (12) to the operational member (6), and a second connecting formation (18) which connects the operational member (6) to the handle (4), the device (2) being such that movement of the control member (10) along the guide groove (14) causes the folding of the operational member (6) via the arm (12), the device (2) being such that in its closed condition the operational member (6) is folded into the handle (4) and the first connecting formation (16) is further away than the second connecting formation (18) from a f

Abstract: A further folding knife which automatically locks upon being moved to the open position. The knife includes a blade having a tang with a ledge portion defined in an upper region of the tang for receipt of a sliding bolt. The bolt is provided for sliding movement within a channel defined in the handle, and the bolt is urged forwardly towards the tang of the blade by a bolt spring, such as a coil spring. A band is connected at one end to the bolt, and the other end of the band is connected to a spool, which is carried for rotation within the handle. The spool can be rotated with respect to the handle to cause a winding of the band thereon, which in turn causes retraction of the bolt, such that the blade can be pivoted out of a locked extended position, towards a retracted position.

Abstract: The present invention relates to a corrosion resistant lock blade knife with a blade made of titanium. The blade is mounted in the handle along with a locking arm made of a substance that is also corrosion resistant. During opening and closing the tang contact edge rubs against the locking arm head. At least one of these surfaces is composed of a corrosion-resistant non-metal or a corrosion-resistant soft metal substance to prevent the gripping and binding effects and excessive that would occur at the contact surface during opening and closing of the knife.

Abstract: This invention provides an article of manufacture for a knife or cutting tool that can cut materials such as webbing and cording without opening the knife. More particularly, the present invention relates to knives with blades that are partially exposed for use when the knife is closed or the blade is sheathed.

Abstract: A releasable, double locking knife including a body having a cavity and a pair of opposed arms, each having a free end extending into the cavity, and a blade connected to the body for rotation between the closed position wherein the blade is disposed substantially within the cavity and an open position wherein the blade is disposed substantially outside the cavity. The opposed arms engage side surfaces of the blade when the blade is in the closed position to resist movement of the blade out of the closed position. The arms further engage stop surfaces on the blade when the blade is in the open position, thereby locking the blade in the open position. The blade further includes a release mechanism for moving the arms out of locking engagement with the blade to permit movement of the blade out of the open position.

Abstract: A shock absorbing blade stop for a folding knife comprising; an elongated, cylinder shaped body, with o-ring grooves provided near its opposite ends. O-rings of a resilient material affixed to the o-ring grooves and the completed assembly located within the handle frames of a folding knife by means of location holes provided in the handle frames for that purpose. Location holes are of an inside diameter closely corresponding to the outside diameter of the mounted o-rings thereby producing a shock absorbing effect in response to the impact of a fast opening blade colliding against the blade stop. An enlarged center section of the blade stop is provided with an increased diameter slightly larger than the locating holes of the handle frames so as to capture the blade stop within the space between handle frames.

Abstract: A folding cutting tool which includes a handle having gripping depressions and a plurality of cutting blades. The blades are rotably connected to the ends of the handle to allow them to be folded into the handle or extend from the handle during operation of the tool. At least one blade has at least one depression that aligns with a depression on the handle. Alternatively, the blades of the tool may fold far enough into the handle to not interfere with the depressions in the handle. The depressions allow for the user to adequately grip the handle to perform a cutting operation.

Abstract: The present invention provides an apparatus and method for joining together the surfaces of wood or similar material by introducing laser light between the surfaces just before the surfaces are forced together. A preferred embodiment of the joining apparatus is a generally broad wedge-shaped blade having planar lower and upper surfaces, which converge toward each other to terminate along an intersecting edge. The blade is generally hollow with a cavity for passing optical fibers carrying laser light to a transparent window attached to the intersecting edge of the blade. Laser light passes through the window and is directed into the closed cavity that is bounded by the windowed intersecting edge of the wedge and the two surfaces of the material, which surfaces converge to the closed end of the cavity where the material is joining together.

Abstract: A knife has an implement lying in an implement plane and an attachment structure lying in the implement plane. The attachment structure is integral with the knife body with a fixed portion extending laterally from the top of the knife body. A gate is pivotably attached to a first part of the fixed portion of the attachment structure and pivotable in the implement plane between a closed position and an open position. When the gate is opened, the attachment may be clipped to another article, and the knife is releasably attached to the other article when the gate is closed.

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 self-sharpening pocket knife is provided that includes a housing having abrasive stone strips or other sharpening means, and additional means for biasing the strips inward so that as the stone wears down there is always enough surface area in contact with the blade to sharpen it. The biasing means may take the form of foam rubber which expands, or multiple coiled springs, with either means being positioned between the walls of the housing and the stone strips.

Abstract: A multi-purpose self defense tool is provided which can be used for pinching an opponent, delivering a blow and/or as a kinetic opening folding knife by positioning a pointed hump located on the non-cutting edge of the blade against an object or the body of an opponent and dragging the tool in a rapid motion.

Abstract: The invention discloses a knife having a blade which is rotatably connected to a handle so that the blade can be folded into the handle and folded out of the handle. The knife has a locking means by which the blade can be locked or unlocked when the blade is folded into the handle. The locking means includes a rotatable pin which is accessible from the exterior and which is disposed in the handle of the knife.

Abstract: A retractable knife with a safety device to prevent the knife from being inadvertently extended once retracted, the knife comprises a blade having a first and second grooves on the opposite sides of the blade; a flat handle means including a first handle and a second handle with the blade pivotally disposed at and between the front ends of the first and the second handles in a first position for forming a receiving space; and a safety button having an arc member disposed at and between a second position on the first and the second handles adjacent to the first position. The safety button is operative to either insert the arc member into the first groove in an extended position of the blade or the second groove in the retracted position of the blade, thus locking the blade in the either positions.

Abstract: A tool holder and tools combination includes a base with a head formed on an end thereof. A fixing seat is pivotally mounted to the head and a blade is forcibly inserted into an engaging groove of the fixing seat. A catch is provided to engage with ratchet teeth of the fixing seat to thereby prevent inadvertent folding of the blade. The catch can be retained in a position allowing free pivotal movement of the blade relative to the base.