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: An apparatus for opening a folding knife is provided. The apparatus may include a plate having an arcuate slot and a substantially linear slot. A cam slide may be provided comprised of an extension which extends into the substantially linear slot, and an opening into which a post connected to a blade device can be inserted. The extension of the cam slide typically can be moved in a substantially linear manner in the substantially linear slot. The substantially linear movement of the extension in the substantially linear slot causes a sharp edge of the blade device to come out of or go into a housing.

Abstract: A folding knife, comprising a blade pivotally connected to an elongate handle defining a recessed blade cavity and a blade opening assembly constructed and arranged to assist movement of the blade to an open position, in which the blade is extended. The blade opening assembly comprises, in one example, a bias element and an actuating member. The bias element is housed within the recessed blade cavity and has a free end. The actuating member is pivotally connected to the handle within the recessed blade cavity and is constructed and arranged to engage a portion of the tang of the blade and a portion of the bias element such that the blade may be assisted to the open position. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 C.F.R.

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 multi-functional tool configured to enable a user to manipulate articles of clothing, the multi-functional tool including a first handle, a second handle, a pivot pin, and a plurality of tools rotatably disposed about the pivot pin. Wherein each tool is configured to provide a specific function to the user of the multi-functional tool. Still further, in accordance with the present invention there is provided a multi-functional tool that includes a plurality of tools configured to manipulate buttons and zippers disposed on articles of clothing.

Abstract: A hand-held jack-knife according to the invention essentially comprises a blade and a handle articulated around an axis of rotation. This articulation is formed by a hollow bush the axial opening thereof passes completely through the handle and which is fixedly secured in rotation to the table. The blade can be operated by means of knobs. A stop catch may be formed by a tab, the free end of which may engage in housings of the bush-knob system. This knife finds its application in the fields of, for example, mountain climbing, pot-holing, deep-sea fishing, water and aerial sports.

Abstract: A folding tool (14, 60) including a locking mechanism for keeping a knife blade (2, 72) or other tool blade in an extended position or a folded position with respect to a handle (1, 62). A locking body (3, 90, 90′, 142, 150, 162) extending between the sides (16, 18, 64, 68) of the handle (1, 62) is moveable transversely, between a locking position and a releasing position. A flat locking face (42, 102) of the locking body (3, 90) engages a flat engagement surface (44, 104) on the blade (2, 72) when the blade is in the extended position. A ball detent including a projecting ball surface (98) and a mating detent cavity (112) may be used to keep the blade in its folded position with respect to the handle. Another detent includes inclined surfaces (128, 132).

Abstract: A knife-and-sheath combination includes a knife with a blade having two opposing broad faces and an opening through the blade extending between the broad faces, and a handle extending from the blade. The combination also includes a sheath including a sheath body having a receptacle sized to receive the blade therein, and a positive lock operable to lock the knife to the sheath. The positive lock includes a locking element engagable to the opening in the blade of the knife, and a lock release accessible to a user of the knife-and-sheath combination, the lock release being operable to disengage the locking element from the opening in the blade of the knife.

Abstract: A folding blade knife which may comprise a handle member, and including at least one upper handle member and at least one lower handle member defining a channel. The knife may further include a blade member pivotally mounted, via a pivotal member, to the handle member and within the channel. An actuator may be slidably mounted to the at least one upper handle member and joined to the blade member back end, for actuation by a user, such that when the user exerts a force against the actuator to slide the actuator with respect to the handle member, the user-exerted force is transmitted to the blade member back end to rotate the blade member. A pin slot may be formed within the at least one handle member at the handle member front end and arched around the pivotal member. An actuator slot may be formed within the at least one upper handle member at the handle member front end, having a linear portion and an arc portion.

Abstract: The folding knife includes an elongated handle forming a spacing therebetween. An elongated blade having a working end and a tang at the opposite end within a common plane, a pivot including a pivot axis connecting the tang to the handle to permit the blade to pivot selectively into an open position at which the blade extends outwardly from the handle and into a closed position in which the blade is nested into the spacing. The blade is provided with a cam, that may be a rolling cam, secured to the blade eccentric to the pivot axis and spaced from the plane that includes the blade. An operating spring is secured at one end to the handle and has abutting contact with the cam remote from the end in the handle thus forming force vectors that are arranged selectively to resist the pivoting of the blade to an open position and when in an open position resisting the pivoting of the blade to a closed position.

Abstract: A utility knife handle including a housing with an interior cavity that houses a locking mechanism, a blade storage area, and a blade carriage mechanism. The locking mechanism includes a biased locking member that is slidably provided within a first housing portion and an engagement member provided on a second housing portion pivotally connected to the first housing portion. The housing has a closed position in which the locking member is engaged with the engagement member and an open position in which the locking member is slid out of engagement with the engagement member and the first and second housing portions are rotated to allow access to the interior cavity of the housing. The blade storage area includes a blade receiving portion with a magnet therein for holding stored blade within the blade storage area. The blade carriage mechanism has a blade carriage slidably disposed within the interior cavity of the housing and adjustable to a plurality of distinct locked positions.

Abstract: A folding knife of the type wherein the blade may be moved between open and closed positions with the hand holding the knife. A blade is connected by a fixed pivot pin to a casing having the usual two handle or cover pieces providing a casing with a space for receiving the blade in the closed position. A substantially V-shaped slot extends through one of the cover pieces in close proximity and partially surrounding relation to the pivot pin. In addition to a circular opening for the pivot pin, the blade tang includes a linearly elongated, through slot communicating at one end with the circular opening. An actuating member, having integral head and stem portions, extends through the V-shaped slot in the cover piece and slidingly engages the slot in the blade tang, and into a blind V-slot in the inwardly facing surface of the other cover piece.

Abstract: A seat belt cutter for automotive vehicles includes a blade and a hammer which are provided on a grip member. The blade member has an arcuate end portion and a serrated edge portion and is pivotally mounted to the grip member. The hammer can include a pair of sharply pointed head portions or a single hammer member and this hammer is provided at an end of the grip member.

Abstract: An improved folding knife and one-handed opening system. The key improvement consists of a manual opening lever (100) moving alongside the blade (40) operated by the thumb by pressing upwards on the thumb bar (120). Because the manual opening lever (100) rotates about the fastener-bearing (60), it can be returned to its out-of-the-way initial position after opening the knife. Thus, this invention provides a simple one-handed opening system which does not intrude into the working area of the blade.

Abstract: A folding knife that is self opening when removed from a container such as a holster or pocket. The knife includes a handle and a knife blade with the blade hinged to the handle for folding from an extended, use, position to a stored position in a slot in the handle. A pin is formed on the knife blade adjacent to the hinged end, extending away from the blade when the blade is folded. When the knife is pulled from a container, the pin will snag the container just before the knife is fully removed, causing the blade to unfold to the use position. Preferably, the pin is hook-shaped with an end extending along the blade towards the blade tip. A releasable locking arrangement to lock the blade against folding while in use and for releasing the blade when desired for folding is preferably included.

Abstract: A holder for a folding knife which retains the knife in a folded configuration with blade retention means to maintain the knife blade in a slightly open position so that the knife is opened when it is withdrawn from the holder, where the blade retention means do not contact the sharp edge of the knife.

Abstract: A tri-fold knife is provided which has a blade having a tang and bifurcated handle. The handle has a main handle which has a forward end which is pivotably attached to the tang. The main handle terminates in a butt end. A tail handle is provided with a forward engaging end and a butt end coupling which pivotably engages the butt end of the main handle. The main handle is provided with a main handle slot and the tail handle is provided with a tail handle slot which connects with the main handle slot. When the main handle forward end engages the tail handle forward engaging end, a knife handle is formed. When the tail handle is end to end with the main handle, the slots form a sheath into which the knife blade can be pivoted. Preferably, locks are provided to hold the blade with respect to the main handle when the knife is opened and the blade is exposed. A lock is also provided to hold the blade in the closed position where the blade lies in the main handle slot and the tail handle slot.

Abstract: The subject apparatus includes three implements which complement each other in the removal of skin portions, abdominal lining portions and bone portions from a fish steak. One implement is tongs having a plurality of tips which are pressed into the steak, surrounding the central bone portions, allowing their removal by pressing the tips toward each other to grasp and then remove those portions. A second implement is a blade on a handle. The blade is essentially perpendicular to the handle, sharp on both edges and its broad surfaces are perpendicular to the long axis of the handle. The blade is passed between the flesh portions of the steak and the skin portion and the abdominal cavity lining portion (if any) to separate and allow removal of those portions. A third implement is a tweezers specially adapted to grasping the ends of bones which extend through the steak perpendicular to its broad, flat surfaces and to grasping and removing the free skin and lining portions.

Abstract: A folding knife (2) including a blade (6) foldable between an elongated handle (4) wherein blade (6) has a pivotal axis at one end of handle (4). An elongated lever (2) has one end pivotally hinged to the edge of blade (6) on one side transversely spaced from the pivotal axis of blade (6) having a squared end block (60) of blade (6) extending rearwardly therefrom therein handle (4), the upper and lower side of end block (60) are flat. The opposite length of lever (20) extend parallel and spaced apart to at least the length of blade (6) adjacent a cutting edge (24) of blade (6) upon handle (4). Lever (20) is configured with a hump (26) which abuts with blade (6) rearwardly of cutting edge (24) to retain the spacing between lever (20) and cutting edge (24).

Abstract: A folding blade pocket knife including: an elongated handle, defining first and second lateral walls and a cross-sectionally U-shape lengthwise channel therebetween; an elongated cutting blade, sized to fit within the U-channel; a knurled rotary button, pivotally mounting an inner end of the cutting blade to a front end of the handle first wall; a liner lock assembly, including an elongated leaf spring blade, fixedly connected at a rear end thereof to a rear end of the handle second wall, and defining a front portion pretensioned toward and against a front portion of the handle first wall, whereby the leaf spring blade front portion extends transversely of the U-channel to prevent engagement of the cutting blade into the U-channel; and a slider operated cable for pulling the leaf spring blade front portion away from the handle first wall, whereby the leaf spring blade clears the U-channel to enable engagement of the cutting blade into the U-channel.

Abstract: A one-handed knife system in which a knife having a blade instantly deployed by pulling on the heel section thereof includes a separable tether which separates under a force greater than the force required to deploy the blade.

Abstract: A folding knife designed to be easily opened with one hand and having a thumb-actuated opening lever to pivot the blade from closed to opened positions. The thumb-actuated lever in a first preferred embodiment has an opening lever driving a sector gear that engages a drive gear for opening the blade. The opening lever remains within the plan-view outline of the knife body at all times. In another disclosed embodiment, the opening lever drives a cam which, in turn, causes a second lever to pivot within the body of the knife. Gear teeth on this second lever engage and rotate a blade drive gear, causing the blade to pivot between closed and opened positions. The opening lever in still another disclosed embodiment includes a thumb-operated slider having a cam surface engaging a follower to pivot a blade opening lever.

Abstract: A knife having angularly adjustable cutting positions is provided, comprising a blade having a base portion, the base portion having an outer edge including an engagement portion including a positioning mechanism for positioning the blade in multiple angular cutting positions with reference to a handle; a handle including a biased locking member for selectively engaging the positioning mechanism and fixing the blade in each of the angular cutting positions, the handle having a blade end; a spring, positioned in the handle, for biasing the locking member against the positioning mechanism; and wherein the base portion of the blade is pivotally attached to the blade end of the handle at a pivot point located within the blade end.

Abstract: A parting tool for parting seams and/or cutting threads or the like is disclosed. The parting tool may include an arc-shaped blade located between two tines of unequal length to effect a cut. The long tine may have a thorn-like point and the short tine may have a spherical thickening above the blade. The tines pass over into a shaft, which is fastened to one end of a shaft holder or mounting. The shaft mounting may include at its other end a pressure surface oriented perpendicularly to the blade and a rotation axle located at a defined distance in front of the pressure surface and oriented perpendicularly to the blade. The rotation axle may be rotatably supported in the lateral surfaces of a casing open within the rotation range of the shaft holder. A stop is provided within the casing for the shaft of the parting tool in the swivelled in, rest position. The stop may be a spring elastic element.

Abstract: A locking, folding knife or tool comprising a handle with a groove dimensioned to receive a knife blade or other instrument that pivots about an integral pivot post between a closed position in the groove and an extended position. The pivot post fits into a hole in the blade of the knife which has two cutout portions along the periphery of the hole. The pivot post has an additional cutout portion. The handle carries a bolt for pushing a spring biased transfer bar toward the blade thereby disengaging a locking pin from one of the cutout portions of the blade and engaging the cutout portion of the pivot post so that the blade can pivot freely about the pivot post. The first cutout portion locks the blade in the extended position; the second cutout portion retains but does not lock the blade in the closed position. Additionally, a strut pivoting between the transfer bar and the handle can be included for added security in the locking of the blade.

Abstract: A knife having at least one blade or other implement foldable about a pivot axis at one end of the handle. A separate lock lever is associated with each blade or implement and has an end portion engaging a notch in the blade adjacent the pivot point to prevent movement of the blade away from the open position until the lock is manually released. The lock levers are mounted for limited pivotal movement at an intermediate position and urged toward engagement of the one end portion with the blade notch when the blade is moved to its open or erected position by respective beam springs. The improved beam springs are mounted upon linings in a position laterally spaced from their respective lock levers. The beam spring end opposite the mounted end is curved and extends laterally through a hole in its associated lining and contacts its associated lock lever.

Abstract: A thumb actuator for a folding knife. The thumb actuator comprises an elongated body with a recess therein for receiving the non-cutting edge of the knife blade, a set screw threadedly mounted to said body and protruding in said recess to lock the body on the blade, and a circular knurled head forming a thumb engaging surface.

Abstract: A knife having a foldable blade includes a locking bar which holds the blade in an open position. A release lever is provided on the side of the handle for releasing the locking bar and allowing the blade to be moved to a closed position. The release lever has a laterally exposed portion which is flush with the outer surface of a bolster of the knife and a projection which extends into the recess which receives the blade when the knife is closed. The projection engages the bottom surface of the locking bar and urges it upward when the laterally exposed portion is depressed.

Abstract: In a folding knife or tool having a handle and a blade pivotally connected to the handle, a control plate 28 slides in a shaped cavity 52 between handle plates 46,68, and swings, and also swings on, a crankpin 24 attached to the blade tang, and embodies a cam surface 36 at the distal end. A stem portion 30 of the control plate 28 protrudes to the surface of the handle whereby it may be manipulated by the user to cause the blade to open or close, and then to cause the cam surface 36 to engage a ramp 62 and spur 60 to thereby interpose a mechanical block to reverse blade rotation. Further pressure upon the stem 30 will then remove running clearances, tightening the blade solidly against wobble, and the control plate 28 against dislodgement.

Abstract: A safety holster for a folding knife having a handle and a folding blade with the holster having a frame formed of side plates with an upper spacer and a lower pivotal blade sheath having an upwardly facing pocket for the tip of a folding blade with the pocket pivoting from a vertical upwardly facing position to a downwardly facing position to drawn the knife blade away from the knife handle to a use phase when the handle is drawn downwardly and permit the knife handle to be drawn upwardly without drawing the blade away from the handle.

Abstract: A lock-back foldable tool includes a folding locking channel which nests outside of the channel-shaped handle of the tool. The locking channel fits closely over a spring, integral with the web of the channel-shaped handle, which bears against a cam surface on the base of the tool blade. When the blade is in extended position with respect to the handle, pivoting of the blade with respect to the handle will cause deflection of the spring. When the locking channel is selectively positioned over the spring, it prevents deflection of the spring, thereby locking the blade into extended position.

Abstract: Knife sheath for pivotable knives such that a knife blade is automatically extended as the knife is removed from the sheath. The sheath has front and back faces with connected edges, but having two opposing first and second separated edge areas so that the knife blade may be simultaneously inserted through both separations. After a knife is inserted into the sheath through the separations, the knife is pivoted to enclose the blade in the sheath. As the knife is removed from the sheath, a connecting member adjacent to the upper edge separation causes the blade to extend.

Abstract: A knife with a retractable knife blade comprising a base element, a pivot pin formed in the base element, a knife blade mounted on the pivot pin and maneuverable between retracted and extended positions, an activation notch formed on one end of the blade, a sliding knob interconnected with the base element and the knife blade by means of a connecting arm for the purpose of moving the knife blade from the retracted to the extended position.

Abstract: A folding pocket knife substantially including a handle, a blade retaining lever and a blade. The blade is pivotally held in the handle wherein the engagement between a holding lever and the base of the blade, which keeps the blade out of the handle, is released by depressing the press area of the lever. The press area of the lever is covered with soft and pliable material that can be moved downward together with the press area so that the disengagement between the retaining lever and the blade can be made without pain to the finger. The whole body of the handle is covered with the soft and pliable material, but the handle may be formed with hard material except the portion over the press area so that only this portion is covered with the soft and pliable material.

Abstract: A knife of the type having a casing and a blade pivotably mounted thereto has an actuator button slidably mounted to the casing. The blade has a concentric wheel associated therewith. One end of a non-extensible linkage is connected to the actuator, and the opposite end of the non-extensible linkage is wrapped around a portion of the wheel. When the user exerts a force to slide the actuator, the user-exerted force is transmitted by the non-extensible linkage to rotate the wheel, thereby pivoting the blade from its closed position to its open position.

Abstract: A scabbard for holding a knife having a folding blade, the scabbard having means therein for engaging thumb slits in the blade of the knife while the knife is being removed from the scabbard to enable the user of the knife to pivot the blade to the open position as the knife is being withdrawn from the scabbard. The means for engaging the thumb slits in the blade can be two pins mounted in the side of the scabbard or two longitudinal ridges or springs extending from the inner walls of the scabbard to engage a substantial length of the thumb slit in the blade of the knife. In one embodiment of the invention, the conventional thumb slits of a folding knife are extended to the end of the portion of the knife blade which first contacts the means for engaging the knife blade to enable the thumb slits to be engaged by the ridges, springs, or pins in the scabbard.

Abstract: There is disclosed a holder for a clasp knife in which the blade is held in a slot in a partly open condition but with the blade still spring-pressed to closed position so that the handle of the blade is held tightly in the holder and yet is accessible to the hand of the user and can be pulled outwardly and upwardly in one smooth motion to both release the knife from the holder and to open the blade. The holder has a slotted face conforming to the front of the knife and a roller spanning the slot in position to be engaged by the tip of the knife blade so that the spring-bias to closed position will pull the handle of the knife into juxtaposition with the slotted face. The holder has bottom and top projections adapted to hold the pivot end and free end of the knife against longitudinal movement. The bottom projection has a dish-shaped depression therein to hold the pivoted end against being withdrawn from the holder until after the free end has been withdrawn.

Abstract: A combination tool capable of drilling a hole in a workpiece, driving a fastener into that hole, and withstanding the vibrational environment of a rotary hammer is provided. An adaptor having a tapered portion which is inserted in the chuck of a power tool, such as a rotary hammer, has a polygonal drive transmitting configuration on its other end. A longitudinal bore extending at least partially along the axis of the adaptor receives a drill bit. The bit and bore have mating external and internal tapers to insure driving engagement. Once the bit has drilled a hole in a workpiece, a drive collar is slipped onto the polygonal drive transmitting portion of the adaptor and the fastener-engaging recess thereof used to drive a self-tapping fastener into that hole.

Abstract: A finger actuator is provided for attachment on a conventional knife blade of the sort which is folded into the handle when not in use. The actuator comprises a resilient tool steel saddle arrangement fitted very tightly over the knife blade. A first plate extends upwardly from said saddle in a direction away from the edge of the knife blade and then extends outwardly in a direction substantially transverse to the longitudinal axis of the knife blade to provide a flat plate area against which the thumb pushes to open the blade while the other fingers of the hand hold the handle in the palm.