Abstract: A locking knife and sheath combination having a knife of unitary construction. A flexible engagement tab is provided on the handle of the knife for engaging with a tab receiving opening provided in a front portion of the sheath. Upon engagement of the tab with such opening, the knife is securely retained in the sheath. Removal of the knife from the sheath is accomplished by depression of the tab through the tab opening of the sheath. Sheath clamping means are also provided on the opposite side of the sheath and include a clamping arm which pivots with respect to the rearward surface of the sheath through means of rotation of a thumb wheel adjustment member. Rotation of the adjustment member allows for the clamping arm to selectively clamp the sheath to an article.

Abstract: A razor blade includes a substrate with a wedge-shaped edge, an interlayer of material selected from the group consisting of silicon, silicon carbide, vanadium, tantalum, nickel, niobium, and niobium-molybdenum alloy and alloys of such materials on the tip and flanks of the wedge-shaped edge, the thickness of the interlayer preferably being in the range of about 50-500 angstroms, and a layer of diamond or diamond-like carbon material on the interlayer that preferably has a thickness of about two thousand angstroms and that defines a tip radius of less than about 1000 angstroms.

Abstract: In a folding knife or hand tool having a handle and a blade pivotally connected to the handle, a spring loaded crossbolt 1 is fitted to the blade tang. One end of crossbolt 1 protrudes through an arcuate slot in the handle, crossbolt slot 32. A locking collar 19 on crossbolt 1 engages locking counterbores A 34 and B 36 located on the blade side of the opposite ends of crossbolt slot 32. When finger pressure is applied to the end of crossbolt 1, locking collar 19 is forced to disengage locking counterbore A 34 and retreat to a relieved area on the blade, collar relief 52. This permits the blade to be extended by forward finger pressure on crossbolt 1. When the blade is fully extended, spring pressure forces locking collar 19 into the opposite locking counterbore B 36, thus locking the blade. Reversing the sequence will close and lock the blade.

Abstract: A method of sharpening the blades of a rotary shaver having rotating discs with a plurality of cutting blades consisting of the following steps. Firstly, substitute a cup shaped sharpening head for a comb-like shaving head on a rotary shaver. The cup shaped sharpening head has a flat abrasive bottom in communication with cutting blades on the rotating disc. Secondly, activate the drive motor whereby the disc rotates rapidly rubbing the cutting blades against the abrasive bottom of the cup shaped sharpening head.

Abstract: A tool structure having a V-shaped body and confronting leg plates is provided to sever connecting thread of a button member relative to a garment and the like. The blades include confronting V-shaped cutting edges for severing of the thread. The structure is arranged to optionally include a button securement member to prevent inadvertent loss of the buttons subsequent to the severing procedure.

Abstract: A can opener for opening cans of the type having a lid joined to the main body by a rim formed of inner and outer lid surfaces folded onto the upper edge of a can wall. A toothed drive wheel rotatably mounted on a housing engages the inner surface of the rim and forces the outer rim surface against a cutter wheel when a drive shaft is rotated by a turning handle. The turning handle is threaded onto the drive shaft so that rotating the handle both rotates the drive wheel and pulls it tightly against the housing which holds a rotatably mounted cutting wheel. This cuts through the outer lid surface to free the lid from the can. The cutting wheel has an outwardly flaring upper cutting edge and the drive wheel has a curved surface for contacting the inner margin of the rim. The two surfaces coact to force the upper cut surface outwardly and the lower cut surface inwardly. Consequently, as the lid is cut free, it is flared outwardly from the can wall for ease of manual removal and replacement.

Abstract: A utility knife for use in combination with the end of an extensible measuring tape. The utility knife includes an attachment having a slot for receiving the end hook of the tape, and a screw which can be turned to secure the end hook within the slot.

Abstract: An improved disposable safety razor is provided which consists of an elongated handle with a head having a convex top surface and a flat bottom surface attached to an upper end of the elongated handle. A pair of single cutting edge razor blades are clamped parallel within the head with the cutting edges angled outwardly and upwardly in opposite direction from the convex top surface of the head, so as to be useful in shaving in both forward and rearward strokes.

Abstract: An improved sandpaper cutting guide is disclosed having a series of recesses to receive different sized pieces of sandpaper. The longer side of a standard sized sheet of sandpaper is placed in one of the slots for cutting the sheet in half or the end of the standard sized sheet may be placed in another slot for cutting a one-third sheet piece. A cutting tool is inserted through a slit in the guide and drawn across the guide to cut a selected one of several smaller, also standard, piece sizes from the sheet. The same slit guides the cutting tool for all sizes with size being determined by the recess into which the sheet is placed. Access openings are provided to aid in removal of the cut piece from the guide. Preferably, recesses are provided for cutting the standard sized sheet into halves, thirds, quarters or sixths.

Abstract: A carton opener has a blade holder for receiving and holding a single edged razor blade. A sheath has a body portion including two side walls closely fitted about the blade holder in which the blade holder is capable of sliding within the sheath between a blade retracted position to at least one blade extended position. A slot is formed on one of the side walls longitudinally along the length of the sheath. A moving member is attached to the blade holder and extends from the blade holder through the slot and is in registry with the slot for moving the blade holder longitudinally with respect to the sheath. The moving member includes a detent biased to a side of the slot having recesses for releasably engaging the recesses when the detent is adjacent thereto.

Abstract: A hand tool or grooving or cutting pipes has an aperture for receiving a portion of pipe, and adjustable support means. A cutting or grooving wheel is displaceable along a predetermined path to cause it to move radially relative to the pipe, as the tool is manually rotated round the pipe.

Abstract: The blade includes a frame body designed as latticework which forms together with two handle shells which can be snapped onto its side the blade handle, and includes a blade which can be clamped by a clamping screw which can be screwed into the frame body into a thread thereof located at the foreward end section of the knife handle, which blade is pressed against a supporting body covered by hard metal and located in the frame body. By the pressing of the blade against the hard metal by means of a clamping screw of which the diameter is larger than the width of the blade any kind of blades can be clamped in the knife handle without using the form locked arresting between blade and knife handle for instance in form of recesses at the edge of the blade such as common at the blades of various designs being generally available on the market. The knife can, therefore, be used with all blades available on the market.

Abstract: A cable cutter mounted within an elongate tubular housing includes cutter blades at a first end of the housing and operative handles at the second end of the housing to permit access to restricted areas such as in motor vehicles and the like.

Abstract: A kitchen utensil for fruits, vegetables and the like, including a tool having a head portion for engaging a fruit, a vegetable and the like, a handle for gripping the tool, and a flexible portion disposed between the head portion and the handle portion for permitting the head portion to pivot relative to the handle. The flexible portion includes a serpentine section having one end thereof integrally connected to the handle, and an opposite end thereof integrally connected to the head portion to provide a one piece integral construction. The serpentine section provides a series of loops, where wedge-shaped reinforcement members are transversely disposed between the loops to maintain the loops in the serpentine configuration. A flexible web portion is provided in each of the loops to maintain the loop configuration thereof while permitting expansion and contraction of the loops under pressure.

Abstract: Scissors or shears of the pivoted cross-blade type, adapted for relief of carpal tunnel syndrome and other hand repetitive stress injuries. The scissors upper and lower handles are characterized by especial contours which immobilize the thumb and index finger, while presenting the stronger middle finger, ring finger and little finger for flexing or gripping action to operate the scissors.

Abstract: A flexible, twin-blade razor unit employing a corrugated spacer for providing improved cutting effectiveness. The corrugations increase the rigidity of the blades, which, in turn, decreases the amplitude of any vibration introduced into the blades.

Abstract: A string trimmer provides a cutting head having a passage therethrough receiving a cutting element of fixed length. The cutting element includes a monofilament line and a resilient sleeve surrounds one end of the monofilament line. A rigid eyelet in one end of the resilient sleeve provides an external upset or abutment which cooperates with a shoulder or restriction in the passage to retain the cutting element in the passage during cutting. A groove in the periphery of the cutting head intersects the passage and provides a recess for wholly receiving the cutting element if the user positions the cutting head against an immovable obstacle.

Abstract: A shaving razor comprising a razor head or blade holding compartment, an elongate planar body portion, and a perpendicular tab portion. This structure allows the thumb and fingers of a user's hand to grasp the razor by the perpendicular tab portion and against the planar body portion; or the perpendicular tab portion to be grasped between the user's extended fingers, and the planar body portion to be grasped between those fingers and the user's thumb. The perpendicular tab portion may be foldable against the planar body portion for compactness in storage and transport.

Abstract: A hydraulically controlled self-contained multi-functional hand tool including a hydraulic ram portion with a rod that activates two blades or arms. The blades articulate about a common pin and are mounted on a fork joint which is securely fixed to the body of the ram. Opening and closing of the blades is achieved by means of a system of links controlled directly by the rod associated with the hydraulic ram. The movement of the blades is obtained by means of an assembly which is integrated into the body of the tool. Said assembly includes an electric motor powered by a battery; drive means for compressing a fluid contained within a leaktight chamber, and a flexible membrane arranged in the chamber to compensate for fluid volume differences and to prevent formation of a vacuum in the chamber when fluid is moved to activate the tool.

Abstract: A motor driven hand circular saw has a base plate arranged to be positioned over a workpiece, and a saw blade which is displaceable parallel and tiltably about a turning axle relative to the base plate for performing inclined or bevel cuts so that by tilting of the saw blade relative to the base plate about the axle, the saw blade and the axle are displaced parallel to the base plate with a stroke which is proportional to a respective tilting angle transversely to a direction downstream of a cutting point and counteracts a natural displacement of a saw engaging line of the saw blade on the workpiece.