Abstract: An interface component for engaging an arrow tip to the leading end of an arrow shaft. The device directs impact forces axially and eliminates the shearing and wall collapse of arrow shafts caused by conventional collared arrow head engagement devices which tend to collapse and cut the leading edge of arrow shafts on hard impacts. Engagement to the arrow shaft leading end is provided by an elongated member axially engaged with the bore of the arrow shaft. The exterior surface of the device can be surfaced to interact with passing air during flight of the arrow and increase spin for better accuracy.

Abstract: An arrow apparatus includes a hollow arrow shaft, an arrow point alignment structure, an arrow point, and a central connection member. The hollow arrow shaft has an outer surface, an interior, and a leading end surface. The arrow point alignment structure includes a tapered portion and is positioned on the outer surface of the arrow shaft at a location proximal of the leading end surface of the arrow shaft. The arrow point is in contact with the tapered portion of the arrow point alignment structure. The central connection member extends into the interior and in contact with the leading end surface.

Abstract: According to one aspect, an apparatus is configured to couple to an arrow-mounted electronic device where the apparatus includes a housing, a receptacle included in the housing and at least one electrical contact configured to couple to a contact included in the arrow-mounted electronic device. According to one embodiment, the receptacle is configured to receive at least a portion of the arrow-mounted electronic device, the at least one electrical contact includes a spring-bias in a first direction and the spring bias is opposed with the arrow-mounted electronic device inserted within the receptacle.

Abstract: A toy projectile launcher includes a body having a magazine for storing at least one cylindrical projectile. The body has an elongate barrel in communication with the magazine. The barrel is shaped for travel of the projectile from the magazine to an exit end. The barrel has an intermediate opening between the magazine and the exit end. A drive wheel is powered by a motor to spin about an axis of rotation. The drive wheel can be coupled to the body by a drive wheel biasing member. The drive wheel intrudes into the barrel though the intermediate opening to contact and propel the projectile down the barrel. The drive wheel can include a resilient part. The axis of rotation of the drive wheel can deviate from being perpendicular to the length of the barrel by a predetermined angle selected to impart spin to the projectile.

Abstract: An arrow insert is inserted into an arrow shaft. The arrow insert includes an outer end with a head, which is located against a leading end of the arrow shaft. An interior diameter of the arrow insert is machined as to accept a threaded arrow tip. To assemble the arrow insert with the arrow, the neck of the arrow insert is coated with an adhesive and inserted into the arrow shaft. The head of the arrow insert has an angular undercut, which is substantially concave. The angular cut of the head is a mating surface for an angular cut on the leading end of the arrow shaft. The substantial concave surface of the arrow insert and the substantial convex surface of the arrow tube prevents the rearward movement of the arrow insert, and the mushrooming of the leading end of the arrow shaft.

Abstract: A payload delivery apparatus comprised of a frangible hollow body for delivering a variety of payloads. The body is attached to a base having a threaded section for removable engagement with an arrow shaft. A plurality of equidistant spaced impact stanchions are attached around the perimeter of the body. A cap is fitted to an open end of the hollow body. Each impact stanchion is connected to the hollow body in such a way as to fracture upon impact with a target thus delivering the payload. In an alternate embodiment, a set of aerodynamic linear channels and annular indentions is included in the body so as to aid to fracturing upon impact.

Abstract: A dual step insert includes a head portion, a front neck portion, and a rear neck portion. An extension shaft is a tube shaped portion that includes an outside diameter, an inside diameter, and a wall thickness. An arrow shaft is a tube shaped structure that includes an outside diameter, an inside diameter, and a wall thickness. An outside rear neck portion of the dual step insert is used as an adhesive surface to adhesively couple the rear neck portion inside the front end of the extension shaft. Coupling of the dual step insert and the extension shaft create a dual step insert. The outside surface of the front neck portion and the outside surface of the extension shaft are now the adhesive surface for the dual step insert, which is adhesively coupled into the arrow shaft.

Abstract: An arrow point includes a tip portion, a neck portion, a threaded portion, a front O-ring, and a rear O-ring. The depth of the front O-ring groove and the rear O-ring groove are equal to a dimension that is at least 50% of the thickness of the cross section of front O-ring and rear O-ring. The grooves have a depth of at least 50% of the cross sectional thickness of the O-rings, the grooves contain the O-rings and prevent the O-rings from being pulled out of the grooves. The cross section diameter of the neck portion of the arrow point is less than the inside diameter of the arrow insert. The compression forces on the front O-ring and the rear O-ring that concentrically align the arrow point within the arrow insert also prevent the arrow point from vibrating loose within the arrow insert.

Abstract: An insert assembly for an arrow that includes a sleeve and a nut which can selectively secure an arrowhead in a desired rotational position on an arrowshaft wherein the arrowhead has a threaded stem that is fixed relative to the arrowhead. The sleeve is secured at the fore end of the arrowshaft and the nut is positioned at the aft end of the sleeve. The threaded stem is inserted through the sleeve and secured to the nut. In one embodiment, the nut is engaged with a tool inserted through the aft end of the arrowshaft to secure the nut with the arrowhead. In another embodiment, the sleeve includes axially extending crimp arms extending rearwardly from the sleeve to axially capture the nut.

Abstract: An arrow apparatus is disclosed comprising an arrow point alignment structure having a tapered leading end disposed on an outer surface of an arrow shaft. The arrow point may also comprise a tapered aperture defined therein for receiving and mating with at least a portion of the tapered leading end of the arrow point alignment structure in order to bring the arrow point into axial alignment with the arrow shaft. The arrow point alignment structure may be integrally formed with, or affixed to, the outer surface of the arrow shaft or affixed to a portion of the arrow point. The arrow apparatus may also further comprise an insert at least partially disposed within the arrow shaft. The insert may comprise a first insert portion removably attached to a second insert portion that weighs less than the first insert portion. Various arrow points and corresponding methods are also disclosed.

Abstract: A self-locking archery arrow field tip or broadhead and arrow insert that provides prevailing torque to offset rotational and vibrational forces applied to the arrow tip when released from a bow. A nylon polymer chemically or thermally applied to a threaded field tip or broadhead or a threaded arrow insert provides a detachable and reusable self-locking arrow tip or arrow insert.

Abstract: A mechanical broadhead including rearwardly deploying and/or sliding blades. The broadhead includes a ferrule defining a bore joined with a penetrating tip. A connector body, such as a carriage element or a pin, is slidably and moveably disposed within the bore, distal from the tip. One or more cutting blades is joined with the connector body. The connector body moves together in unison with the cutting blades as they expand from a retracted, in flight mode to a deployed, target penetrating mode. The connector body and blades can be joined with the ferrule so that the broadhead converts from a deployed mode to an unbarbed mode to facilitate broadhead removal. Optionally, the broadhead can include an internal retainer element that is resilient and durable enough to be used for multiple deployments. A related method of operating the broadhead also is provided.

Abstract: An arrow point includes a base portion, a tip portion, and a plurality of extension members. The plurality of extension members each have a distal end, a proximal end, and a blunt surface. The proximal end of the extension members is pivotally mounted to the base portion. The extension members are movable upon proximal movement of the tip portion between a retracted position wherein the blunt surface is unexposed, and an extended position wherein the blunt surface is exposed and facing in a generally distal direction.

Abstract: An arrow apparatus includes a hollow arrow shaft, an arrow point alignment structure, an arrow point, and a central connection member. The hollow arrow shaft has an outer surface, an interior, and a leading end surface. The arrow point alignment structure includes a tapered portion and is positioned on the outer surface of the arrow shaft at a location proximal of the leading end surface of the arrow shaft. The arrow point is in contact with the tapered portion of the arrow point alignment structure. The central connection member extends into the interior and in contact with the leading end surface.

Abstract: An arrowhead includes a body having a longitudinal axis, a first blade, and a first fastener that extends through a portion of the body and engages the first blade to secure the first blade in position relative to the body. The first fastener is offset relative to the longitudinal axis.

Abstract: An arrow point includes a base portion, a tip portion, and a plurality of extension members. The plurality of extension members each have a distal end, a proximal end, and a blunt surface. The proximal end of the extension members is pivotally mounted to the base portion. The extension members are movable upon proximal movement of the tip portion between a retracted position wherein the blunt surface is unexposed, and an extended position wherein the blunt surface is exposed and facing in a generally distal direction.

Abstract: An improved arrowhead features two sets of expandable blades. The expandable blades are pivotally movable from a first, concealed position to a second expanded position when spurs on the front of the blades contact a target. The first concealed position of the blades allows the arrowhead to penetrate the target upon contact. The fixed blades may be diamond-shaped, double-edged replaceable blades. The expandable blades comprise at least two pivotable blades that can be held in the first safe position by an elastic band. The spurs are located at a first end of the expandable blades, and these spurs are located proximate the base of the fixed blade portion of the arrow head, to allow the fixed portion to penetrate the target before the expandable blades are deployed by the spurs contacting the target.

Abstract: Adaptors for mounting arrowheads to arrow shafts are disclosed. Example embodiments include an outer attachment portion that engages the outer surface of a hollow arrow shaft, and an inner attachment portion that engages the inner surface of the hollow arrow shaft. Other embodiments may include single-piece adaptors configured to receive the end of a hollow arrow shaft, and adaptors with arrowhead receiving portions. Still other embodiments may include an inner attachment portion that is inserted into the hollow of a hollow arrow shaft and an outer attachment portion that surrounds and receives the outer surface of the hollow arrow shaft.

Abstract: An archery projectile insert is provided with a rigid hollow tube having a collar at one end and an internally threaded bushing at an opposite end wherein the collar and bushing are cemented within the rigid tube; and wherein the three piece insert, formed into a unitary structure, is inserted into the hollow end of an archery shaft and cemented in place. A projectile tip having a shank and a threaded extension threadedly engages the internally threaded bushing to secure the tip in place to the projectile shaft.

Abstract: The present invention relates to an arrow for hunting that includes: an arrow shaft member of a predetermined length having a recess part formed on one end thereof so as to insert a bowstring of a bow thereinto and a spiral insertion protruding part formed at the inside on the other end thereof; a plurality of wing members mounted near the recess part of the arrow shaft member in such a manner as to be spaced apart by a predetermined distance from each other along the outer periphery of the arrow shaft member; and an arrowhead having a pointed shape at the end thereof in such a manner as to be adapted to be inserted into the body of the hunting target and a spiral protruding part formed along the outer periphery of the end portion protruded from the other end thereof.

Abstract: In one embodiment there is provided a lawn dart having a shaft that connects to a head assembly at one end thereof. A sleeve is mounted coaxially about the shaft. The sleeve has an inner profile that matches a predetermined cross-section of the sleeve such that the sleeve is capable of axially movement and not capable of rotationally movement relative to the shaft. A plurality of fins is mounted on the sleeve.

Abstract: A projectile is provided for use in a non-lethal weapon system. The projectile having kinetic energy is launched substantially along the longitudinal axis in the direction of a target. Upon impact of the projectile with the target an elastic mechanism absorbs elastically a first portion of the kinetic energy. A locking mechanism stores the first portion of the kinetic energy within the elastic mechanism; whereby the remaining kinetic energy of the impact is reduced to a non-lethal level of the target. The projectile preferably includes a deformable head attached to the first body. The deformable head is formed from a viscoelastic material which manifests both the elastic mechanism (with the elastic mechanical properties of the viscoelastic material) and further manifests the locking mechanism with the viscous properties of the viscoelastic material.

Abstract: An arrow apparatus is disclosed comprising an arrow point alignment structure having a tapered leading end disposed on an outer surface of an arrow shaft. The arrow point may also comprise a tapered aperture defined therein for receiving and mating with at least a portion of the tapered leading end of the arrow point alignment structure in order to bring the arrow point into axial alignment with the arrow shaft. The arrow point alignment structure may be integrally formed with, or affixed to, the outer surface of the arrow shaft or affixed to a portion of the arrow point. The arrow apparatus may also further comprise an insert at least partially disposed within the arrow shaft. The insert may comprise a first insert portion removably attached to a second insert portion that weighs less than the first insert portion. Various arrow points and corresponding methods are also disclosed.

Abstract: An arrow apparatus is disclosed comprising an arrow point alignment structure having a tapered leading end disposed on an outer surface of an arrow shaft. The arrow point may also comprise a tapered aperture defined therein for receiving and mating with at least a portion of the tapered leading end of the arrow point alignment structure in order to bring the arrow point into axial alignment with the arrow shaft. The arrow point alignment structure may be integrally formed with, or affixed to, the outer surface of the arrow shaft or affixed to a portion of the arrow point. The arrow apparatus may also further comprise an insert at least partially disposed within the arrow shaft. The insert may comprise a first insert portion removably attached to a second insert portion that weighs less than the first insert portion. Various arrow points and corresponding methods are also disclosed.

Abstract: An arrow tip and target system, including a tip having a removable marking material integral with an end surface of the tip, and a target. An arrow for marking a target, including a shaft and a tip fixedly mounted thereon, the tip including a removable marking material integral with an end surface of the tip. A tip for attachment to an arrow, including a removable marking material integral with an end surface of the tip. A kit including a target, arrow tips, marking material, games, and rules for the games. A method of playing a game with an arrow tip and target system by attaching a tip including removable marking material to an arrow, launching the arrow towards a target according to the game being played, contacting the tip with the target, and removably marking the target.

Abstract: An arrow having an arrowhead assembly attached thereto is provided for marking a remote location with a marking media. The marking media is preferably in the form of a paint ball or a scent ball. The arrowhead assembly includes a media reservoir defining a cavity and a plurality of supports extending outward from the media reservoir along a longitudinal axis. The supports secure the marking media within the cavity in a press-fit connection. In one embodiment, a cap and a resilient nose cone are attached to the media reservoir, surrounding the marking media, to prevent damage to a target upon impacting the target.

Abstract: The present specification describes novel arrow inserts and arrow systems that may be used for archery. One aspect of the novel arrow inserts relates to two or more separated contact portions or fit rings. The use of at least two fit rings contacting an inside diameter of an arrow shaft at a spaced interval provides better alignment of the arrow insert, and thus an arrow point, with the arrow shaft. The novel arrow inserts may be formed with a lip to limit insertion into the arrow shaft, or without a lip. Inserts without a lip may allow the insert to be fully inserted into the arrow shaft. The inserts may be sized to fit snugly into any arrow shaft, including reduced diameter hunter arrows described herein. The inserts may also be sized to accommodate standard arrow point assemblies, half-out arrow point assemblies, or smaller diameter arrow point assemblies.

Abstract: An arrow (20) having an arrowhead assembly (30) attached thereto is provided for marking a remote location with a marking media (22). The marking media (22) is preferably in the form of a paint ball or a scent ball. The arrowhead assembly (30) includes a media reservoir (46) defining a cavity (52) and a plurality of supports (54) extending outward from the media reservoir (46) along a longitudinal axis (L). The supports (54) secure the marking media (22) within the cavity (52) in a press-fit connection. In one embodiment, a cap (62) and a resilient nose cone (70) are attached to the media reservoir (46), surrounding the marking media (22), to prevent damage to a target upon impacting the target.

Abstract: A fish harvesting head with a rotatable barb device that is held in place with a piercing tip and is configured to move between fish piercing, fish retaining and fish releasing positions. The fish harvesting head is formed from a fish harvesting body having a barb receiving slot positioned in the forward portion of the fish harvesting body that extends along a longitudinal axis of the fish harvesting body. The barb receiving slot enables the barb to be quickly replaced or removed. The fish harvesting head may also include a piercing tip retaining device positioned in the barb receiving slot and in contact with an inner surface of the piercing tip for increasing resistance to movement of the piercing tip relative to the fish harvesting body and prevent accidental loosening of the tip.

Abstract: An Archery Manufacturers & Merchants Organization (AMO) standards-based, arrow assembly, weight-and-length enhancer for archers and/or bowhunters is disclosed, which provides a fully compatible, standards-based way to increase the length and/or weight of the front of the arrow assembly by simply unscrewing the existing arrowhead from the insert of the arrow and screwing this enhancer between the two components. By having internal threads on the device located directly within the outer shank area of the enhancer, the strength is increased due to a decrease in leverage, and the overall length of the assembly is kept to a minimum.

Abstract: An apparatus is configured for inclusion in an arrow. In one embodiment, the apparatus includes a sensor configured to provide data concerning one or more flight characteristics of the arrow in flight and a communication link coupled to the sensor, the communication link configured to communicate the data to a device external to the arrow.

Abstract: An arrow apparatus is disclosed comprising an arrow point alignment structure having a tapered leading end disposed on an outer surface of an arrow shaft. The arrow point may also comprise a tapered aperture defined therein for receiving and mating with at least a portion of the tapered leading end of the arrow point alignment structure in order to bring the arrow point into axial alignment with the arrow shaft. The arrow point alignment structure may be integrally formed with, or affixed to, the outer surface of the arrow shaft or affixed to a portion of the arrow point. The arrow apparatus may also further comprise an insert at least partially disposed within the arrow shaft. The insert may comprise a first insert portion removably attached to a second insert portion that weighs less than the first insert portion. Various arrow points and corresponding methods are also disclosed.

Abstract: The present invention relates to a sucker and an adhesion arrow having the same. More particularly, the present invention provides a sucker that can be attached, instead of a needle, to an arrow for a toy arrow shooter. The sucker of the present invention is formed with an annular projection on an adhesion surface of the sucker. Thus, even when the sucker collides against a target at a high speed, the sucker can be prevented from bouncing back from the target due to a repulsive force generated from the collision and thus securely adhere to the target. Further, even though the sucker of the present invention flies and collides against the target at a certain angle, the sucker can easily adhere to the target. Further, the sucker is made of a soft material so that a repulsive force can be smaller than an adhesion force when the sucker collides against the target.

Abstract: The invention involves an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts.

Abstract: The invention is directed to an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts. The arrow shaft is in one embodiment an aluminum-carbon arrow which includes a metallic core and an outer fiber reinforced polymer layer.

Abstract: The invention involves an arrow system having a shaft having a first end and an insert receptive of a standard point, the insert being disposed completely within the first end of the shaft. An insert installation tool may be used as part of the invention to facilitate insertion of the insert into the first end of the shaft. The invention further includes a reduced diameter hunting arrow shaft that maintains sufficient spine and weight characteristics. The reduced diameter hunting arrow shaft is receptive of standard or non-standard internal components for increasing arrow penetration and shot accuracy. Still further, the invention includes an arrow tip assembly including a male insert and a female point to assist in aligning points with arrow shafts.

Abstract: An arrow point having a self lubricating collar.

Abstract: An arrowhead for attachment onto a cylindrical wooden arrow body of an arrow has an impact tip and a body-receiving area having following one another in a flight direction: a centering section, internal thread, and sheathing section.

Abstract: A play device designed to be struck by various parts of the human anatomy, or with rackets or paddles, depending on the size of the play device. The tail portion of the play device, consists of a curved bell shaped structure, constructed from a suitable molded plastic or a composite of materials; which allows for a strong, flexible, lightweight tail. The length of the tail portion forms a parabolic curve, which increases the compression strength of the tail, as well as increases the drag the tail lends to the device while in flight. The tail portion of the device is connected to a substantially round striking(head)portion. The proportions and weight characteristics enable the shuttle to quickly recover to a head first stable flight pattern, thereby enabling a player to repeatedly strike the device, with the intention of sustaining it's flight.

Abstract: An arrow that is easily assembled and exhibits improved concentricity between the arrowhead and the arrow shaft includes a hollow arrow shaft, an arrowhead having a tip and a cylindrical shank, and a bushing having a cylindrical section and a tapered section, wherein the cylindrical section of the bushing is received in an end of the hollow arrow shaft and secured to the hollow arrow shaft with an adhesive. The tapered section has a bore in which the shank portion of the arrowhead is received, and the shank portion of the arrowhead is secured within the bore using an adhesive. In accordance with an aspect of the invention, the cylindrical shank portion of the arrowhead has smooth surfaces that engage smooth surfaces of the bore extending through the tapered section of the bushing, whereby the absence of threads and other irregularities on the engaging surfaces between the arrowhead and the bushing improve concentricity among the arrowhead, bushing and arrow shaft.

Abstract: Aerodynamically favorable arrowheads such as pivotal blade arrowheads and/or blade-opening arrowheads that have a sharp cutting edge located upon their arrowhead bodies at a location forward of a corresponding main cutting blade cutting edge when in a penetrating configuration such that the arrowheads maintain favorable aerodynamic flight characteristics and cut target material in front of the main cutting blades when penetrating a target so as to eliminate the frictional drag that the otherwise dull arrowhead bodies would generate with the target before the main cutting blades began cutting target material thereinfront.

Abstract: A dart includes a barrel, having a blind bore opening into one, or preferably both, ends, the bore closed by a threaded end cap with a passage therethrough, a shaft slidably received in the passage and retained in the bore by an enlarged collar at one end, and an elastomeric cylinder spring bearing against the end of the bore and the collar, to bias the shaft away from the barrel. The shaft may be either a forward scoring pin, or rearward flight shaft. The bore is of a larger diameter than the elastomeric cylinder, to allow compressional flexural movement of the shaft in response to forces imposed on the shaft and barrel, to reduce rejection of the shaft into a dart board, and reduce deflection of subsequently thrown darts which strike the rear shaft, The dart may include a hollow interior to receive a customizable weight body, and a detachable indented grip.

Abstract: An arrow for a bow or crossbow whose point is fitted with a capsule that can be pushed on before shooting. When the arrow is pulled out of a solid object, the capsule remains stuck in the object so that the arrow can be reused again undamaged. A hemispherical shaped flight stabilizer as viewed from the front is mounted on the forward area of a hunting point. During flight, the influence of side winds on the arrow is eliminated and thus an accurate shot is always made possible. The flight stabilizer consists of a material that can be easily destroyed when it strikes the target and is preferably in the form of a sphere that can have indentations on its surface. The shaft of a crossbow dr bow is fitted with members easily reached by the shooter, so that the point of is the arrow can be inserted exactly into the center of the spherical flight stabilizer.

Abstract: A dart is disclosed which includes a flexibly mounted point and flight shaft. The dart includes a central tubular body which has fore and aft end caps. The fore cap includes a central bore, a forward through bore, and a socket therebetween. A point is mounted in a carrier, which is received in the central bore of the fore cap and seats in the socket. An elastomeric spring cylinder biases the carrier forward so the point is normally located along the dart axis. Upon impact with a target, the point can move longitudinally and, in some embodiments, pivot under compression against the spring cylinder, to reduce the chance of dart rejection if it strikes a target impediment or divider. The rear flight shaft can be mounted in a manner similar to the point, so the dart flights have reduced tendency to deflect other incoming darts. The central body includes an adjustable weighting arrangement.

Abstract: Arrowheads having multi-facted forward tip ends with convex shaped facets thereon.

Abstract: An attractive magnetic dart system provides exciting games which are fun, educational and entertaining. Advantageously, the user-friendly system utilizes safe magnetic darts which will not harm people or damage walls, furniture, etc. surrounding the target. The safe magnetic darts each have a magnetic head with a flat front face, which is preferably much larger than the body of the dart. In the preferred form, the magnetic darts have long fins fabricated of a sponge-like material, such as urethane, to. enhance and better stabilize the flight of the darts. Desirably, the magnetic heads of the darts are heavier than the combined weight of the bodies and fins of the darts to further enhance magnetic contact of the magnetic head of the dart to the target. The magnetic dart preferably has optical viewing portions to view the target when aiming the dart and to view the portion of the target that the dart has struck.

Abstract: A special tuning point for archery arrows for use in tuning a bow, target shooting, and non-big game hunting has a weight approximately equal to a broadhead selected for use by an archer using and tuning the bow and has a balance point position ahead of the arrow shaft to which the point is secured approximately equal to that of the selected broadhead. The tuning point is secured to the forward end of an arrow shaft substantially identical to that used with the selected broadhead to form a tuning arrow. The tuning arrow is used in tuning the bow. In this manner, the bow is properly tuned for not only the tuning arrow, but also for the arrows with the selected broadhead.

Abstract: A dart having a shaft with a flight, a tip member, and a metal barrel connected between the shaft and the tip member, wherein the tip member has a rigid, cylindrical, solid core, and a hollow cylindrical shell receiving the rigid core, the hollow cylindrical shell having an outer thread at the rear end thereof threaded into a screw hole on one end of the metal barrel, a plurality of recessed portions equiangularly spaced around the periphery of the front end thereof, and a plurality of toothed annular portions raised around the periphery and arranged in parallel between the recessed portions and the outer thread for positioning in studs on a dart board, the recessed portions having a water drop-like shape and a depth gradually reduced from the front end of the cylindrical shell toward the toothed annular portions for guiding the tip member into engagement with the studs on the dart board.

Abstract: A dart has a body with a cavity at one end. A collar screwed into the cavity retains the head of a dart point within the cavity; the head of the dart point being able to move longitudinally within the cavity. The collar has fingers, which extend into the cavity, and which, in a first extended position of the dart point, grip a projection from, or a groove in, the dart point and maintains the body and the dart point in a relatively fixed relationship, whilst in a second position in which the dart point is withdrawn in the cavity allow the body and the dart point to rotate relative to one another.

Abstract: An adapter for coupling an arrow point to an arrow shaft. The adapter comprises a first body member having an exterior surface extending from an inboard end to an outboard end. At least a first portion of the exterior surface of the first body member comprises a high density groove structure comprising a plurality of grooves having a groove density of at least 4-grooves per centimeter; and a plurality of shoulders spaced apart by the grooves, wherein the ratio of the total cumulative widths of the shoulders of the first portion to the total cumulative width of the grooves of the first portion is in the range of from 0:1 to about 3:1. The present invention provides an arrow assembly comprising such an adapter.