Abstract: A broadhead for an arrow having a locking mechanism which insures true alignment of the longitudinal axis of the broadhead with the longitudinal axis of the shaft of the arrow. The shaft is fit within a longitudinal bore in the body of the broadhead and a locking nut engages external threads at an end of the broadhead which tightens the body of the broadhead about the shaft of the arrow to frictionally engage the arrow shaft within the broadhead body.

Abstract: A cutter includes a container having openings at the top and at the bottom, and a removable cap that fits frictionally over the top opening. Inside the container is a plurality of units, each unit including a capsule with a blade member fixedly joined to and projecting from the capsule. These units fit frictionally atop one another in a nesting relationship inside the container with the blade member of one unit being received within a hollow opening in another unit.

Abstract: A tandem blade razor with two continually sharpened blades and a third skin engaging member of planar form having a skin engaging edge with a tip radius of at least 0.5 microns. The rounded edge is positioned between the sharpened blade edges or behind them.

Abstract: A safety razor blade unit has cap structure with upstanding fin elements directed perpendicular to the blade edges to define a cap surface featuring low frictional resistance characteristics during shaving. The fin elements are spaced at a pitch distance of 0.3 to 0.7 millimeter, are 0.3 to 1.0 millimeter in height and are substantially triangular in cross-section with an aspect ratio of 2:1 to 4:1.

Abstract: Apparatus and method of attaching a threaded member to the proximal end of a knife tang onto which a securing element is mounted for securing handle pieces about the tang. The head of a prior art screw is flattened and laterally expanded within a complimentary shaped notch extending from an open end into the proximal end of the tang with the threaded end of the screw extending rearwardly therefrom. Once laterally expanded within the notch, the screw is substantially permanently engaged therein.

Abstract: A depilatory applicating razor includes a handle with a cutting head mounted to the handle. The cutting head includes at least one cutting blade. The cutting head also includes a depilatory applicator through which a depilatory substance may be discharged in the general area of the cutting blade.

Abstract: An improved ergonomic knife configuration is disclosed. The knife has a blade with an unsharpened notch formed on the upper, back surface of the blade and a thrust ramp located approximately above the quillion. The knife also has a shaped handle which in combination with a choil and the notch allows the knife to be gripped in a variety of different grips for various uses.

Abstract: A safety razor in which at least part of the skin engaging surface thereof has an adherent coating comprising substantially spherical elastomeric particles in a polymer matrix, the size and concentration of such particles being such that the coated surface has a surface roughness with spaced major and subsidiary peaks.

Abstract: A razor blade body in the form of a cartridge structure includes a guard member assembled thereon forward of, and extending parallel to, the blade or blades. The guard is of a two part molded structure having an upper portion of elastomeric material with a plurality of upwardly projecting protrusions formed thereon and a lower base portion of rigid plastic material having a downwardly projecting V-shaped cross-sectional portion. A pair of upwardly projecting elements are disposed in spaced relation forming a recess on the blade cartridge structure for receiving the V-shaped base portion therebetween and a latch means disposed in the recess retains the guard member in the assembled position.

Abstract: A razor head or cartridge is provided on its skin engaging surfaces, e.g. caps and/or guard surfaces with an array of closely spaced projections which, in use, produce a pleasant tactile sensation tending to reduce shaving discomfort.The projections may be formed by closely packed flexible filaments, or by moulded fins or pillars.

Abstract: The invention relates to a knife and the method of making the same. The knife includes a blade, a blade's root end, an elongated intermediate piece and handle. The knife is made by connecting the blade including the root end, the intermediate piece and the handle to each other by gluing.

Abstract: Disclosed is a conventional safety razor having a sounding board disposed immediately behind and approximately coextensive and even with the razor head, the sounding board being in the form of a thin plastic plate extending upwardly from the razor handle, with the plate serving as both a means for scraping hair stubble on human skin, as well as a means for audibly amplifying vibrations induced thereby. This alerts the user to the continued presence of objectionable hair stubble so that the shaving process is repeated with or without a change of safety razors or razor blades as required. Alternatively, a miniature solid-state microphone may be mounted on the safety razor for sensing the vibrations and driving an audio speaker through an amplifier/filter network.

Abstract: A retractable surgical or other instrument is provided with a locking mechanism automatically actuated by sliding an operating element forward to extend it from a protective sheath. The locking mechanism operates by the cooperative action of a plurality of abutment means integrally molded into the interior of the instrument handle and a plurality of transverse bends forming a substantially closed loop profile in the proximal end of the elongated support shaft of the operating element. A longitudinally slidable actuating pin engages the proximal end of the support shaft to move it longitudinally in a selected direction. A portion of the proximal end of the shaft is biased to exert a radially outward force on the inner wall of the instrument handle thereby assuring positive engagement between the support shaft and an abutment surface which prevents rearward motion of the surgical element once it is placed in an extended position.

Abstract: A depilator is provided comprising a housing which includes a skin-following surface for the skin to be depilated and at least one drivable hair pulling element rotatably mounted in the housing, the axis of the element being directed perpendicular to the skin-following surface. A first hair pulling element is arranged annularly while a second hair pulling element adjoins the inside wall of the first hair pulling element.

Abstract: A shaving device has a handle with an inner chamber for accommodating a shaving cream, a head connected with the handle and having a passage for supplying the shaving cream and massaging and vibration elements, brushes on the head for distributing the shaving cream discharged from the head over the skin of the user, and a shaving element on the head for shaving after the application of the shaving cream and container for refreshing and disinfection.

Abstract: A shaving system includes body structure with guide structure and blade structure carried by the body structure. The blade structure has a cutting edge extending along the length of the body structure. A movable guard member of sheet material is carried by the body structure forwardly of the cutting edge of the blade structure and has a vertically extending rear wall portion, a sloped surface portion that extends forwardly in cantilever relation from the rear wall portion and that includes skin-tensioning surface structure, and integral guide portions disposed in the guide structure. The movable guard member is biased for dynamic movement as guided by the guide structure in the course of a shaving stroke.

Abstract: A reaper razor includes a blade having a sharpened edge and a reaper member rotatably drive adjacent the blade. The reaper member pushes hair to be cut against the sharpened edge severing the hair from its shank. The blade is mounted for adjustable movement toward and away from the reaper member to accommodate reaper wear. The reaper member is made of a rubber like material having a Shore durometer hardness of 55-70, a coefficient of kenetic friction of at least 0.8 and preferably above 1.0 and is electrostatically active.

Abstract: In a shaving instrument including a razor blade having an edge attached to one end of a support and a guard bar arranged in precise spaced relation parallel to said razor blade edge, the improvement of a patterned texture on a region of an outer surface of the guard bar, the texture including one or more depressions each having a mound of minute height which constitutes a border of each depression, the material of each mound formed by a solidified part of the material which was melted and displaced from the guard bar to form the depressions; the texture being positioned such that when the shaving instrument is slidingly applied to skin having hair extending therefrom, the texture exerts a degree of drag or friction thereto which causes the skin to be pulled slightly and the hair to be properly positioned for cutting by the blade edge. The texture is imprinted upon the guard bar by a high energy beam, preferably from a YAG-Nd laser.

Abstract: A two part, ornamental pocket knife having the appearance of a rifle bullet when sheathed. The shell portion of the bullet serves both as a sheath and a handle for the knife blade, which is rigidly anchored in the inner end of the bullet tip.

Abstract: A clipper comprises an elongated handle grip 10 and a cutting head 20 which has an outer shearing foil 22 and an inner cutter assembly 40 driven to rotate in engagement with the undersurface of the outer shearing foil 22 for clipping the entangled fiber strands from the surface of a fabric. The cutting head 20 has a center axis which is perpendicular to the general top plane of the shearing foil 22 and about which the inner cutter assembly 40 rotates. The cutting head 20 extends forwardly from the one longitudinal end of the handle grip 10 with its center axis angled at an obtuse angle with respect to the longitudinal axis of the handle grip 10. A recovery chute 60 is provided along the front face 11 of the handle grip 10 for recovering the clipped fiber strands from within the cutting head 20.

Abstract: An electric dry shaver is described having an improved skin stretcher for enhancing performance of the shaver. The skin stretcher includes a slide body which can be positioned for effecting the skin stretching function or retracted for enabling the shaver to be used at difficult to reach body sites.

Abstract: A shaving apparatus comprising a cutting member and an opposite member which has a hair-seizing end and can be driven with respect to the cutting member with a relative movement. The plate-shaped opposite member is coupled to a driving mechanism via a rod mechanism.

Abstract: A shaving implement which is a razor adaptor attached to a safety razor system having a blade assembly coupled to a handle--for skin and hair conditioning by constantly stretching and arching the skin ahead of the blade assembly in operation, whereby the skin is smoothened out and the hairs are lifted up from their hollows to suit the blades for an optimum shave. The adaptor comprises a skin stretching bar extending outwards in a spaced manner below and parallel to the blade assembly in an operating position. It could be flipped down to the handle to a resting position--for trimming purpose on a V-shape interconnecting arms hinged to a bracket extending from the associated channels between the flanges of the handle down to its neck and fixed to a clamp embracing the handle.

Abstract: A small, hand-held cutting tool which is light in weight and easily manipulated for use in cutting relatively soft materials. The cutting tool apparatus described herein is especially useful for the decorative carving of pumpkins.

Abstract: A knife according to the invention has a handle with improved flexibility and gripping characteristics. The tang embedded in the unitary handle has a series of spaced-apart flex sites at which the tang can resiliently bend. The handle is made of a resilient material which can flex in cooperation with the tang. The handle may further include a series of rows of flexible ribs as an improved gripping surface. The knife according to the invention can flex along its entire length and is well suited for use as a fillet knife.

Abstract: A method of cold staking a scalpel blade to a scalpel handle wherein the blade has a key slot complementarily configured to a projecting boss formed on the end of the blade handle. The boss has two elements at its opposite ends which project beyond an intermediate portion. When cold staked, the material of the projecting portions flows over the outside surface of the blade to secure the blade to the handle at those points where loading of the blades is anticipated to be a maximum whereas the intermediate portion of the blade receives the boss, which boss is not cold staked at that area to the blade. The handle is formed of a polypropylene having a filler of 25-35% by weight of talc.

Abstract: A bayonet and scabbard are capable of being pivotally connected to constitute a wire or metal tape cutting implement having a recess shaped to capture the wire or tape before such cutting begins. The bayonet blade has a tang extending into the bayonet handle which is of a yield strength greater than that of the handle but less than that of the bayonet blade. A finger guard is provided with notches adjacent the blade for engaging an edge of the cap of a receptacle for removing the same.

Abstract: A knife has a snap-on tang interlocked with its blade and clamped between handle halves. Transverse and longitudinal locking between the blade and tang resists relative rotation or translation. Butterfly clips on the blade snap onto webs molded into one of the handle halves for resisting relative deformation therebetween. A further butterfly clip on the tang snaps onto a longitudinal web in a handle half for additional rigidity.

Abstract: This invention provides a razor having a knurled guard bar and a single sharp blade particularly adopted for shaving one suffering from pseudofolliculitis barbae.

Abstract: A cutting unit for a rotary razor is provided which has a rotatable element for shearing hairs and a brush rotatable with the shearing element. The brush acts to position hairs for shaving and is particularly useful for alleviating pseudofolliculitis barbae and for positioning ingrown hairs for shaving.

Abstract: A hand held tool for removing excess urethane sealant from the outer edges of an automotive windshield to facilitate simple replacement of the windshield. The tool generally has a handle, an elongated member with a longitudinal bore partially extending therethrough, and a removable and replaceable blade. The cutting portion of the blade is substantially U-shaped in cross-section with the exposed edges tapered and sharpened. The shape of the blade and its sharpened edges facilitate the cutting and removal of a channel within the urethane sealant in order to allow placement of a strip of plastic moulding which retains the windshield in place.

Abstract: A dry-shaving apparatus includes a shaving unit comprising an external shaving member provided with hair-entry apertures; and an internal shaving member associated with and rotatable relative to the external shaving member, the internal shaving member being formed with a plurality of cutting blades for engagement with the external shaving member. A first resilient element engages the internal shaving member and exerts pressure thereagainst. A ball bearing member is centrally positioned between the external shaving member and the internal shaving member and engages the internal shaving member. A second resilient element is associated with the external shaving member and engages the ball bearing member.

Abstract: A cutter head for an electric shaver comprises an outer shearing foil provided with a series of hair entrance slots arranged in a row. Cooperating with the outer shearing foil is an inner cutter assembly which includes at least one inner blade having a cutting edge elongated in a general direction of the length of each slot and is driven to move in relation to the shearing foil so that the cutting edge is in hair shearing relation with the row of the slots. Formed with the inner blade is a hair scooping projection which projects in a general direction of the movement of the cutting edge and define a sloping edge extending downwardly and outwardly from the cutting edge such that a long hair strands entering the slots can, as the inner blade advances, be slid or guide along the sloping edge up to the cutting edge where the strand is successfully sheared against the edge of the slot.

Abstract: A multipurpose tool useful in the construction of stained glass windows is described. The tool comprises a stiff, short blade having a curved cutting portion which sweeps around the end. The blade is provided with a short frusto-conically shaped handled which, in the preferred embodiment, comprises an inner core portion fabricated preferably of a heavy material and an outer sleeve portion fabricated preferably of wood, plastic or hard rubber. When used as a knife to cut lead came, the short construction of the present invention permits the end of the handle to be placed in the palm of the hand with the thumb and fingers placed generally parallel to the length of the handle along the sides of the handle as well as on the sides and back of the blade. This permits the entire strength of the arm, rather than merely the wrist, to be used for cutting the lead came, while permitting the hand to be still placed close to the lead channel being cut so that precise control over the tool can be maintained.

Abstract: A shaving apparatus has a circular shear plate provided with hair-entrance apertures and a cutting unit associated with and rotatable relative to the shear plate about an axis of rotation. The cutting unit comprises a cutting member having a circular central body, cutter arms extending from the periphery of the central body toward the shear plate, and a cutter formed at the end of each cutter arm, a part of each cutter arm extending in a substantially axial direction. A hair-pulling member has a circular central portion, hair-pulling-blade arms extending from the periphery of the central portion toward the shear plate, and a hair-pulling blade formed at the end of each hair-pulling-blade arm, each hair-pulling blade being associated with and movable relative to a cutter, a part of each hair-pulling-blade arm extending in a substantially axial direction.

Abstract: An impact-resistant knife hilt comprising a hollow handle containing a clevis with shear pin connecting the knife blade to the end cap of the knife handle. Such a knife is readily assembled and disassembled by spinning the end cap while the hilt with shear pin reduces the risk of blade breakage upon impact.

Abstract: An interchangably headed tool including an elongated handle having at one end thereof a longitudinal passage formed therein, a head for said handle, said head having a shank extending therefrom, said shank extending into the passage, a portion of the wall forming the longitudinal passage including a removable clamping plate adapted to abut the shank and clamp the head firmly in place.

Abstract: There is provided a shaving apparatus comprising a shear plate with hair-entry apertures; and a cutting unit associated with and reciprocatory relative to the shear plate, the cutting unit including a frame. Cutters extend from the frame toward the shear plate, each cutter having a trapezoidal cross section and being in contact along its base with the shear plate. Two hair-pulling blades are respectively associated with and movable relative to the opposite sloping sides of each cutter, each hair-pulling blade normally being in contact with the shear plate. A pair of resilient elements respectively connects the opposite ends of each hair-pulling blade to the frame.

Abstract: A shaving apparatus comprising a shear plate with apertures and a cutting unit which is drivable relative to the shear plate and comprises a central body provided with cutting elements. Each cutting element has an associated hair-pulling element which precedes the cutting element in the direction of driving. Each combination of a cutting element and an associated hair-pulling element is formed by the limbs of a substantially U-shaped member of a sheet material which may be manufactured as a separate part.

Abstract: A shaving apparatus is provided with a shear plate having hair-entry apertures and formed with an inner surface, and a cutting unit associated with and drivable relative to the shear plate. The cutting unit comprises cutting elements extending towards the shear plate, each cutting element having an end surface facing the inner surface of the shear plate and being formed with a cutting edge, and hair-pulling elements respectively associated with the cutting elements and positioned in front of the cutting elements in the direction of driving, each hair-cutting element being rigidly connected to its associated cutting element and having a first end surface portion facing the inner surface of the shear plate and being formed with a contact edge. Each contact edge is situated at a greater distance than its associated cutting edge from the inner surface of the shear plate.

Abstract: An impact-resistant knife hilt comprising a hollow handle containing a clevis with shear pin connecting the knife blade to a bolt passing through the end cap of the knife handle. Such a knife is readily assembled and disassembled by tightening or removing the bolt while the hilt with shear pin reduces the risk of blade breakage upon their impact.

Abstract: A folding knife is provided wherein the blade is easily moved from a deployed mode to a stored mode within paired panels that constitute a handle and sheath for the blade. In either mode, the blade is positively and securely locked into position. The entire knife can be easily taken apart for maintenance purposes.

Abstract: An electric dry shaver having a movable long hair clipper which is slidable from a retracted position within the shaver housing to an extended position in which the clipping teeth of the clipper are exposed. The clipper includes a relatively fixed blade or comb supported by a molded plastic part which performs the functions of guiding the movable clipper, providing a detent action for the movable clipper and interconnecting the clipper assembly with a manually actuable member which extends through the wall of the shaving housing. The shaver also includes a roller supported between a pair of shaving heads by the means for tensioning the flexible comb on its supporting frame.

Abstract: An electric shaver incorporating an elastomeric, unitary, diaphragm suction pump driven from an eccentric off the cutting blade driving motor. A channel is formed about the cutting head in communication with the suction pump. During shaving, the suction pump creates a partial vacuum in the channel about the cutting head whereby the skin is drawn into the channel and, thereby, stretched across and against the cutting head. Axial sliding of the cutting head and/or a collar surrounding the channel can be employed in addition to provide self-adjustability.

Abstract: A garden cutting tool is provided that cuts tree branches, bushes, plants, weeds and the like and consists of a blade, a neck having an arm affixed to the bottom of the blade, a sleeve having a central aperture, extending from the arm and a pair of rods diametrically extending vertically from the bottom of the sleeve, a handle having an extension that mates within the central aperture of the sleeve, the handle having a pair of apertures diametrically extending vertically at the base of the extension, whereby the rods go into the apertures and are bent at the bottom of the handle to keep the handle in a secure and stable position and a fastener placed horizontally through the sleeve of the neck and the extension of the handle to keep the handle in a secure and stable position.

Abstract: A handle made from a plastic material is used to grip support blades of household utensils, in particular kitchen knives. It consists of two handle halves resting on both sides of the support blade and terminating flush with the rim of the support blade and solidly joined together by rivet elements. To lower manufacturing costs for mass-produced articles and simultaneously ensure firm seating of the support blade in the handle, one of the handle halves is integral with at least two projecting rivet sockets and the other handle half is integral with an equal number of corresponding rivet pins. The rivet sockets are such in their outside diameters that they pass with slight play through the passage holes in the support blade and in that they are pressed hard in position against the edge of the passage holes when the rivet pins are introduced.

Abstract: Having a beveled prying edge and a notch for frictional interfitting with a chisel shaft, the removable chisel blade of this invention provides a significant improvement to the process of removing mortar leakage, grout, or spalling from the surfaces of concrete walls. The heat-treated, hardened steel blades have a sharp edge to pry the grout drippage from the surfaces without driving the grout into the surface and without biting into the surface itself. A notch is cut in the body of the blade so that the blade will slide into a throat on a chisel shaft and will frictionally interfit through wedging action with the chisel shaft. Beveled side portions of the tapered notch sides provide improved frictional interfitting. Also, beveled inset grooves on the body of the chiseled blade provide improved frictional interfitting and reduce the tendency of the chisel blade to wiggle in the plane of the blade.

Abstract: There is provided a shaving apparatus having a shear plate formed with hair-entry apertures and a cutting unit associated with and drivable relative to the shear plate. The cutting unit comprises a cutting element having cutters, a hair-pulling blade being associated with each cutter and positioned in front of the same in the direction of driving the cutting unit. To enable the shaving apparatus to be operated at a high speed, the hair-pulling blades are elastically coupled to the cutting element whereby each hair-pulling blade is movable, upon driving of the cutting unit, toward and into contact with its associated cutter upon contact of the hair-pulling blade with a hair. Each hair pulling blade is normally spaced from its associated cutter throughout their respective lengths.

Abstract: There is provided a shaving apparatus having a circular shear plate and a cutting unit rotatable relative to the shear plate. The cutting unit comprises a cutting member having cutters extending toward the shear plate and a lead-cutting element having lead cutters extending toward the shear plate and respectively associated with and movable relative to the cutters away from and toward the shear plate. Each lead cutter, with reference to the direction of rotation of the cutting unit, is positioned in front of its associated cutter. A spacer is interposed between each cutter and its associated lead cutter.

Abstract: Disclosed is a shaving apparatus having a shear plate provided with hair-entry apertures and a cutting member drivable relative to the shear plate. The cutting member is formed with cutters each having an associated lead cutter slidingly engaging the guide wall of its respective cutter. The end of each lead cutter has a projection terminating in a cutting edge for penetration into a hair, the thickness of such projection permitting only partial penetration of the lead cutter into the hair. Such penetration is advantageously further limited by forming the front wall of the lead cutter perpendicular to the end wall of its associated cutter.