Abstract: A carbon fiber sheet, an arrow shaft, and an arrow are disclosed. The arrow shaft and the arrow include a carbon fiber sheet to be formed by being wound. The carbon fiber sheet includes a plurality of carbon fiber sheet layers to be connected each other along a first direction to which the carbon fiber sheet is wound. At least one carbon fiber sheet layer of the plurality of carbon sheet layers is divided into five or more sections along a second direction perpendicular to the first direction. The five or more sections include three or more spine sections, and two or more overlapped sections which are formed between the spine sections to be overlapped with each other. The carbon fiber sheet includes a carbon fiber sheet layer that is used to manufacture the arrow shaft and the arrow.

Abstract: An apparatus disclosed to maximize damage from a projectile to a hunted animal. The apparatus, a hunting projectile, includes an outer shaft assembly comprising an outer shaft, fletches, and a plurality of retention fins extending outwardly radially from the outer shaft. The apparatus further includes an inner shaft assembly fitting slidably inside the outer shaft and comprising an inner shaft and a piercing tip.

Abstract: A vibration damping nock for crossbow arrows includes an insert to absorb bow string slap, thereby to prevent damage to the nock during crossbow firing.

Abstract: The various embodiments disclosed and pictured illustrate an indicator for determining if and/or where a projectile has struck a target. The illustrative embodiment pictured herein is specifically adapted for application to a shaft, such as a shaft of an arrow. The external surface of the indicator may be textured so as to retain a certain amount of liquid within the target upon striking the target. In one example, the indicator is configured for use with deer hunting such that the external texture of the indicator is configured to retain a specific amount of deer blood so that the hunter may determine, based on blood characteristics retained within the indicator, if and where the arrow to which the indicator is affixed struck the deer.

Abstract: Example nocks, arrowheads and/or arrowhead inserts include a tapered annular flange axially engaging a correspondingly tapered edge on a tubular arrow shaft. The tapered flange and edge help prevent the end of tubular arrow shaft from deforming radially outward when substantial axial force is applied to the nock, arrowhead and/or arrowhead insert.

Abstract: A cylindrical carbon fiber arrow shaft formed with an increased external diameter of 0.380 inches. This arrow shaft is formed with an axial bore which has a first internal diameter throughout a substantial portion of the shaft length, and a second internal diameter throughout the fletching end of the arrow. By varying the first internal diameter and the second internal diameter standard nocks may be used without the need for any spacer or insert, standard points may be used without the need for any spacer or insert and the location of the center of gravity may be adjusted on the arrow.

Abstract: The high straightness arrow made by the process in the present invention is designed to improve the straightness of the archery arrow. A chamber and a mandrel are made of dissimilar metals. The chamber includes walls creating an external housing and defining an internal airspace. Once the mandrel covered with carbon fiber is positioned through chamber, the mandrel ends are secured, forming an assembly, to straighten mandrel. When heated simultaneously, the different coefficients of thermal expansion of chamber and mandrel cause the chamber to expand more than the mandrel, creating a natural tension along mandrel resulting in a near perfectly straight shaft. As the assembly cools, the mandrel and chamber return to their original length, yet the shaft retains its straightened form. Thus this manufacturing process yields an arrow shaft that is straighter than shafts made of the same materials but with a traditional manufacturing technique.

Abstract: A cylindrical carbon fiber arrow shaft formed with an exterior surface having single or multiple outside diameters and formed with an axial bore having multiple interior diameters. In a preferred embodiment, the exterior surface of the arrow shaft has an increased external diameter at the nock end and tapers to a smaller external diameter at the tip end. The axial bore has an internal diameter at the nock end corresponding to standard arrows having external diameters of 0.295 inches and tapers to a smaller internal diameter at the tip end. Modifying the length, diameter, and wall thickness of the arrow shaft varies the stiffness of the arrow shaft along the length and shifts the center of gravity along the length of the arrow shaft and as well. Utilizing standard internal diameters, nock and tips may be attached without spacers or inserts, thereby decreasing weight of the arrow significantly.

Abstract: An animal tracking device for tracking an animal shot with an arrow. The animal tracking device may include an antenna, a controller, an accelerometer switch, a battery powering the controller and/or accelerometer switch, an animal attachment component, and a housing physically connecting components of the animal tracking device. The accelerometer switch may measure an amount of G force it experiences and send an interrupt signal to the controller when the amount of G force measured is at or greater than a threshold amount for a threshold amount of time, indicating that the arrow has been shot. The controller may send wireless signals to a receiver via the antenna in response to receiving the interrupt signal. The housing may be detachably attached to the arrow. The animal attachment component may attach to an animal shot by the arrow and force the housing away from the arrow.

Abstract: A self-centering nock is provided for use in a well-balanced nock-arrow or nock-bolt assembly. The self-centering nock includes compliant projecting protrusions or compliant arms that are substantially rotationally symmetric about a cross section normal to a main axis of the self-centering nock. The compliant projecting protrusions or compliant arms may be received in bolts that have bores of differing internal dimensions.

Abstract: The small diameter double cutter crossbow bolt of the present invention incorporates a midsection spacer having a plurality of blades, positioned mid-shaft of a small diameter shaft having a nock and a tip. The nock and midsection spacer has an outer diameter equal to the outer diameter of a standard bolt to ensure the centerline axis of the bolt is the same as a traditional crossbow bolt, allowing the use of the small diameter double cutter crossbow bolt in standard crossbow stocks and rails. In a preferred embodiment, midsection blade is formed with a lumen and is slid over the small diameter shaft. In an alternative preferred embodiment, the midsection spacer is a solid unit, joining two halves of a small diameter shaft. Thus, the small diameter double cutter crossbow bolt of the present invention provides a crossbow bolt capable of greater speeds, range, accuracy, kinetic energy, and lethality.

Abstract: A device and method introduces the use of conventional ammunitions to the archery/bow hunting industry. The device achieves stealthy delivery of firearm munitions and increases the firepower of standard arrows resulting in deeper penetration into a target. The device consists generally of a cylindrical housing threaded internally on one end for attachment to a firing pin. A cartridge is loaded into the housing until the flange on the cartridge casing abuts an interior shoulder. In an alternate embodiment, the interior of the housing further includes an annular retaining tab. The retaining tab separates the cartridge from the firing pin to prevent inadvertent discharge. A cap or nosecone may be included to further protect the device from accidental discharge of the cartridge and to provide aerodynamic advantages. The housing may further include a set of stabilizing vanes.

Abstract: A kinetic energy enhancing penetrator assembly for use with an archery arrow comprises a weighted arrow insert and a resilient member. The weighted arrow insert includes a semi-cylindrical body and a base extending from the body for releasable engagement with a nock of the arrow. The weighted arrow insert additionally includes a tapered head for engagement with the resilient member. The weighted arrow insert includes a feature enabling passage of air thereby reducing compression of air entrapped within a bore of an arrow shaft and any resulting resistance. The resilient member includes a coil spring affixed to a rear end of the insert for buffering impact of the weighted arrow insert against an arrowhead of the arrow. In use, the penetrator assembly within an arrow applies a secondary burst of kinetic energy upon the arrowhead upon impact with a target.

Abstract: A rifle bow assembly is disclosed herein. The rifle bow assembly includes: an outer barrel slide subassembly having an elongate cavity, the outer barrel slide subassembly configured to be attached to a bow assembly; a projectile barrel subassembly having a first end and a second end, the projectile barrel subassembly configured to be slidingly received within the elongate cavity of the outer barrel slide subassembly, and the projectile barrel subassembly having a helical projectile passageway extending in a lengthwise direction thereof; a magazine subassembly coupled to the second end of the projectile barrel subassembly, and having attachment means for securing a projectile magazine thereto; and a release subassembly coupled to an end portion of the magazine subassembly, the release subassembly including at least one string release mechanism for releasably engaging a bow string of the bow assembly. A rifle bow, which incorporates the rifle bow assembly, is also disclosed herein.

Abstract: A small diameter crossbow bolt includes a small diameter shaft having a leading end with an insert to receive a point. The trailing end of shaft has a nock and adjacent fletching. The insert receives a point, such as a target point, broad head, or other point known in the industry. A circumferential spacer is positioned along the shaft between the insert and nock and moved along the shaft as needed to locate the insert for a particular weight distribution, center of gravity positioning, or to separate the spacer from nock. The insert, nock, and spacer each have a diameter substantially equal to the diameter of a prior art bolt. When the diameters of the nock and spacer are equal to the diameter of a prior art bolt, the small diameter crossbow bolt of the present invention can be used interchangeably with prior art bolts without modification to the crossbow.

Abstract: A self-centering nock is provided for use in a well-balanced nock-arrow or nock-bolt assembly. The self-centering nock includes compliant projecting protrusions or compliant arms that are substantially rotationally symmetric about a cross section normal to a main axis of the self-centering nock. The compliant projecting protrusions or compliant arms may be received in bolts that have bores of differing internal dimensions.

Abstract: A hunting arrow for tracking target animals is disclosed and described. The arrow can include a chamber. The arrow may also include a transmitter housing that is installable into the chamber. A pair of bores extending through the transmitter housing and chamber may be configured and adapted for receiving a pair of shear pins. The shear pins may secure the housing in the chamber. The transmitter housing may comprise an animal engagement member, such as a hook. The transmitter housing is ejected from the chamber when the arrow strikes a target animal and the hook stops the forward momentum of the transmitter housing with sufficient force to shear the shear pins, thereby ejecting and embedding the transmitter housing in the hide of the animal. The transmitter within the housing may broadcast the location of the animal to the hunter to enable easy tracking of the animal, if wounded.

Abstract: A dart is disclosed that may comprise an elongate dart body, a base, and a cap. The elongate dart body may have a first end, a second end, and an interior cavity, which can be a bore. The base may include a mount and a stem inserted into the interior bore of the dart body at the first end of the dart. The cap may be attached to the base and may have a flexible, substantially bulbous-shaped head portion and an interior post so that the head portion may be configured to deform upon an impact.

Abstract: The archery arrow having improved flight characteristics of the present invention is designed to improve the accuracy of the arrow which is equipped with a dampening medium within the central bore of the arrow shaft. The dampening materials in an embodiment may include, but not be limited to, silicon, epoxies or urethanes and selection of various dampening materials may provide for varying degrees of stiffness. The dampening effects of internal dampening materials decrease the initial deflection distance of the arrow and also serves to decrease the deflection with each oscillation. In addition, the dampening medium adopted in the present invention provides for an arrow having a selectable center of gravity location that has improved flight characteristics. Thus, the dampening materials adopted in the present invention provide for a selected location of center of gravity and a desired attenuation of oscillations.

Abstract: An arrow shaft includes a straightness marking that indicates a position of straightness of an arrow shaft. Accordingly, a user can shoot in consideration of the error in the straightness, thereby facilitating the adjustment of a zero point and formation of a shot group, and also improving the flight stability of the arrow.

Abstract: An animal tracking device removably attachable to an arrow and including an antenna, a controller, a battery for powering the controller, a housing for housing the antenna, controller, and battery, and an animal attachment component fixed to the housing. The controller may transmit wireless signals to a receiver via the antenna. The housing may have a first and second portion pivotally attached at a first joint. The first and second portions may also meet, but not attach with each other, at a second joint in a closed position. The first and second portions may pivot between the closed position and an open position about the first joint, may be naturally biased in the open position, and may be detachably attached in the closed position to the arrow shaft. The animal attachment component may attach to an animal shot by the arrow, forcing the housing away from the arrow.

Abstract: A improved nock bushing preferably includes a non-round body and a stop flange. The non-round body preferably has a square shape. A nock hole is formed through at least substantially all of a length of the non-round body to receive a projection from an arrow nock. A plurality of lightening openings are preferably formed through the non-round body. The stop flange extends from one end of the non-round body. A distance across the largest cross-section dimension of the non-round body is preferably greater than a diameter of a bushing hole in an arrow shaft. In use, the non-round body is inserted into a nock end of an arrow shaft, which flexes the nock end. The arrow shaft will want to return back to its original round shape and thus applies force to an outer surface of the non-round body.

Abstract: The crossbow bolt or arrow nock in certain embodiments of the current invention includes a structural support piece that substantially surrounds and structurally supports the distal end of the nock, which may be made of a clear polymeric material to allow the transmission of light.

Abstract: A hand-held flinging device includes a launcher that engages the projectile and improves control of the launcher and projectile, during a throwing/flinging motion, until centrifugal force causes disengagement of the projectile from the launcher. The engagement system involves the rearward portions of a launcher shaft and the projectile bore, so that, upon disengagement, frictional engagement and interference of the engagement system with the projectile is prevented or limited as the projectile moves forward to fly off the launcher. The engagement system may include a member that snaps into engagement with a hole or recess to hold the projectile on the launcher even through the wind-up portion of the throw that may include the launcher distal end being pointed downward. The preferred projectile covers the entire or nearly the entire launcher shaft distal of the hand grip and is heavier toward its front end.

Abstract: A mating arrow mounted slide and arrow rest cradle assembly for bowfishing and bowhunting utilizes an arrow shaft mounted slide that is releasably snapped into a cradle carried by the riser of a bow, in which the slide cradle combination provides a tight arrow rest as well as an anchoring mechanism for one end of a line when used for bowfishing. When the arrow is released the slide unsnaps from the cradle and moves in unison with the arrow as the arrow moves out of the bow.

Abstract: An alignment tool may be used to align a nock with respect to an arrow having vanes. The alignment tool may include a body, a connection member extending from the body, and indicating surfaces that are spaced around the outer surface of the alignment tool body at a relative angular orientation that matches the angular orientation of the arrow vanes. The connection member may be attached to the nock and then both the tool and the nock may be rotated with respect to the arrow to align the nock with respect to the arrow by aligning the indicating surfaces with respect to the vanes.

Abstract: A non-lethal arrow is disclosed that includes a shaft extending along a longitudinal axis. A nock is located on a first end of the shaft and a flight is positioned at approximately the first end of the shaft. A tip connector including a shaft connection end, wherein the shaft connection end is connected with the shaft. The shaft connection end defines a hollow interior portion sized a configured to receive an end of the shaft. A foam tip surrounds at least a portion of the tip connector. The foam tip is overmolded over the tip connector.

Abstract: An Arrow modification and fletching system wherein an adapter is used to modify modern hollow carbon arrows creating a fletched end module for the purpose of facilitating arrow modification and fletch repair and replacement.

Abstract: A small diameter crossbow bolt includes a small diameter shaft having a leading end with an insert to receive a point. The trailing end of shaft has a nock and adjacent fletching. The insert receives a point, such as a target point, broad head, or other point known in the industry. A circumferential spacer is positioned along the shaft between the insert and nock and moved along the shaft as needed to locate the insert for a particular weight distribution, center of gravity positioning, or to separate the spacer from nock. The insert, nock, and spacer each have a diameter substantially equal to the diameter of a prior art bolt. When the diameters of the nock and spacer are equal to the diameter of a prior art bolt, the small diameter crossbow bolt of the present invention can be used interchangeably with prior art bolts without modification to the crossbow.

Abstract: An arrow includes an elongate shaft, a plurality of vanes located proximate a proximal end of the shaft, and a point located proximate a distal end of the shaft. The shaft may have a dimpled outer surface. The shaft may also or alternatively have an internal supporting structure.

Abstract: A slide hammer impact enhancement system adapted for incorporation into a hollow arrow shaft comprises a weight member movably positioned within the hollow arrow shaft with a magnet member rigidly secured to an end thereof. A nock member is rigidly mounted at one end of the hollow arrow shaft, and contains an attachment member accessible from within the hollow arrow shaft. The magnet member and attached weight member are maintained adjacent the nock member by the attachment member upon launching the arrow. Upon the arrow striking a target, the magnet member and connected weight member disengage from the attachment member, move down the hollow arrow shaft, and strike an arrow head at the opposite end thereof, thereby further driving the arrow into the target.

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: A throwing dart having a handle that provides a user with tactile biofeedback. The handle includes a handle body having an exterior body surface defined by a first octant, a second octant, a third octant, a fourth octant, a fifth octant, a sixth octant, a seventh octant, and an eighth octant. The handle includes at least a first tactile reference indentation, or projection, that extends longitudinally along the exterior body surface and is confined to a first tactile octant. The first tactile reference indentation, or projection, is formed with dimensions specifically tailored to harness the user's natural attributes of sensibility, proprioception, and neuromuscular memory to improve a user's accuracy.

Abstract: The archery arrow having improved flight characteristics of the present invention is designed to improve the accuracy of the arrow which is equipped with a dampening medium within the central bore of the arrow shaft. The dampening materials in an embodiment may include, but not be limited to, silicon, epoxies or urethanes and selection of various dampening materials may provide for varying degrees of stiffness. The dampening effects of internal dampening materials decrease the initial deflection distance of the arrow and also serves to decrease the deflection with each oscillation. In addition, the dampening medium adopted in the present invention provides for an arrow having a selectable center of gravity location that has improved flight characteristics. Thus, the dampening materials adopted in the present invention provide for a selected location of center of gravity and a desired attenuation of oscillations.

Abstract: A shock-absorbing bolt for a crossbow comprises a shaft, a forward flange, and a shock-absorbing mechanism coupled to the shaft or the forward flange. The forward flange is coupled to a forward end of the shaft and has a forward surface with a transverse area that is greater than about three times larger than a transverse area of the shaft. A tapered tip can be attached to and protrude from the forward surface of the forward flange. The shock-absorbing mechanism is arranged so that, upon acceleration or deceleration of the bolt, kinetic energy of the bolt is dissipated by viscoelastic, viscous, or frictional forces within the bolt.

Abstract: A device and method introduces the use of conventional ammunitions to the archery/bow hunting industry. The device achieves stealthy delivery of firearm munitions and increases the firepower of standard arrows resulting in deeper penetration into a target. The device consists generally of a cylindrical housing threaded internally on one end for attachment to a firing pin assembly. A firing pin is slideably attached to the firing pin assembly. A cartridge is loaded into the housing until the flange on the cartridge casing abuts an interior shoulder. In an alternate embodiment, the interior of the housing further includes an annular retaining tab. The retaining tab separates the cartridge from the firing pin to prevent inadvertent discharge. A cap or nosepiece may be included to further protect the device from accidental discharge of the cartridge and to provide aerodynamic advantages. The housing further includes a set of stabilizing vanes.

Abstract: Each bolt of a set has three vanes and a nock with three diametrical transverse grooves; each groove is perpendicular to a corresponding vane. Each bolt is shot at least three times with a crossbow, at least once with each one of the vanes extending downward into the rail slot of a crossbow. After noting the positions on a target for each shot of each bolt, one vane of each bolt is marked so that shooting the set of bolts with the corresponding marked vanes extending downward into the rail slot results in the smallest grouping pattern for the set of bolts.

Abstract: A projectile that includes a vibrating function is presented. The vibrating projectile, such as an arrow, is structured to penetrate flesh of an animal more easily than a standard projectile. After the arrow has reached its target, a switch turns on a vibrating mechanism that causes the arrowhead, such as a broadhead to vibrate as it is traveling into the animal. This deeper penetration causes more injury to the animal and reduces the time between arrow penetration and animal expiration.

Abstract: A projectile that includes a shocking function is presented. The projectile, such as an arrow, is structured to shock an animal as the arrow strikes its target. A capacitor may be used to store energy to generate the shock, or a shocking circuit may be self-contained. The shocking mechanism may be controlled by switch. In other embodiments electrically isolated electrodes could be present on the arrow, including the broadhead, that automatically cause the shocking system to discharge when the arrow has reached its target. The shocking function may be combined with a vibrating function for an even more lethal strike.

Abstract: An elastomeric blow pipe dart (10) including: a generally circular body portion (12); a tapered portion (16) extending from the generally circular body portion (12); and a nose (18) having a smaller diameter than the tapered portion (16) and extending from the tapered portion (16) to a tip (20). The blow pipe dart (10) may comprise a soft rubber, and the nose (18) may define an end bore (26) so that air passes through the nose (18) when the dart (10) is launched.

Abstract: A cylindrical carbon fiber arrow shaft formed with an increased external diameter of 0.380 inches. This arrow shaft is formed with an axial bore which has a first internal diameter throughout a substantial portion of the shaft length, and a second, smaller, internal diameter throughout the fletching end of the arrow. The second internal diameter corresponds to the internal diameter of standard arrows having external diameters of 0.295 inches. Using this standard internal diameter at the fletching-end of the arrow, standard nooks may be used without the need for any spacer or insert, thereby decreasing fletching-end weight significantly and providing for the proper and more desired location of the center of gravity forward on the arrow.

Abstract: A sectionalized arrow includes a tubular-shaped tip section and a tubular-shaped nock section. Structurally, the aft-end of the tip section is formed with a chamber, and the fore-end of the tip section is formed with an insert. Essentially, the insert of the nock section and the chamber of the tip section have the same length “L”. A shim or strip of coating is positioned on the insert of the nock section to force contact between the insert and the chamber to establish a snug fit between the tip section and the nock section.

Abstract: A device for extending a shaft of an arrow including a hollow arrow sleeve having a forward end and a rearward end. The hollow arrow sleeve supporting at least one auxiliary, expandable, razor-sharp blade for pivoting movement between a stored position lying enclosed within the sleeve and a deployed position extending outwardly through a slot formed in the sleeve. The sleeve having at least one slot allowing passage of the at least one expandable razor-sharp blade from a stored position to a deployed position in response to movement of the at least one blade from the rearward position to the forward position relative to the sleeve. A member acting against the at least one auxiliary, expandable, razor-sharp blade for urging the blade toward the deployed position. A spring for biasing the member against the at least one auxiliary, expandable, razor-sharp blade.

Abstract: A device for transferring energy to propel a payload with added velocity after launch includes a first component having a mass (m1), and a second component having a mass (m2). As an assembly, the first and second components are positioned to establish a compression chamber between them that is dimensionally responsive to their relative movements. And, a payload is mounted on a selected component of the assembly. In operation, a driving force is exerted against one component of the assembly to propel the entire assembly along a predetermined flight path. Contemporaneously with this acceleration, the two components are moved toward each other. In turn, this compresses gas in the gas chamber to generate potential energy that is transferred as the gas expands to separate the payload from the assembly with added velocity.

Abstract: An arrow shaft includes an arrow shaft body, a plurality of first fletching indication patterns formed with extending to the longitudinal direction of the arrow shaft body on the outer circumferential surface of the arrow shaft body and spaced apart each other in the circumferential direction of the arrow shaft body, and a plurality of second fletching indication patterns formed in a direction of intersecting with the first fletching indication patterns and spaced apart each other in the circumferential direction of the arrow shaft body. The arrow shaft provides an accurate and easy fletching thanks to fletching indication patterns formed on the outer circumferential surface of the arrow shaft body, and also provides an easy aligning of fletchings to any position of the arrow shaft body with the fletching indication patterns depending on characteristics of users.

Abstract: A man-powered system for pneumatically launching a pellet cluster includes a cartridge for holding the pellet cluster. A hollow propulsion shaft receives the cartridge for substantially free travel back and forth in the shaft to establish a variable-volume compression chamber in the shaft, between the cartridge and a closed end of the shaft. When a driving force acts to launch the combination of cartridge and shaft, the cartridge moves to compress gas in the compression chamber for a subsequent expansion that will propel the cartridge forward through the shaft. After launch, the compressed gas acts to separate the pellet cluster from the cartridge and to provide a pneumatic assist that increases the velocity of pellets after separation.

Abstract: A projectile includes an elongated shaft having a fore-end and an aft-end. A nose portion is affixed to the fore-end of the shaft, and cutting edges are attached near the aft-end of the shaft. For the present invention, the nose portion of the projectile is preferably made of a material having a greater density than the material that is used to construct the shaft of the projectile. In any event, the structure and configuration of the projectile is such that its center of gravity is located in the forward half of the projectile. Also, the cutting edges at the aft-end of the shaft can be configured to function as stabilizing fins for the projectile in flight.

Abstract: A tracking apparatus secures a transmitting device onto a target game animal. The tracking apparatus engages with a target and separates the apparatus from the arrow. The apparatus includes a transmitting device for transmitting a signal to a receiving device; a stopping component for detaching the tracking apparatus from the arrow after the arrow collides with the target; and a securing component for securing the tracking apparatus to the target, said securing component including barbs angled towards the rear of the arrow for stopping rebound motion of the tracking apparatus after the arrow collides with the target. In one embodiment, the barbs are reinforced with reinforcing arms. In another embodiment, the securing component includes a torsion spring. In another embodiment, the stopping component includes one or more wings with a front edge facing the front of the arrow that is relatively perpendicular to the axis of the arrow.

Abstract: The small diameter double cutter crossbow bolt of the present invention incorporates a midsection spacer having a plurality of blades, positioned mid-shaft of a small diameter shaft having a nock and a tip. The nock and midsection spacer has an outer diameter equal to the outer diameter of a standard bolt to ensure the centerline axis of the bolt is the same as a traditional crossbow bolt, allowing the use of the small diameter double cutter crossbow bolt in standard crossbow stocks and rails. In a preferred embodiment, midsection blade is formed with a lumen and is slid over the small diameter shaft. In an alternative preferred embodiment, the midsection spacer is a solid unit, joining two halves of a small diameter shaft. Thus, the small diameter double cutter crossbow bolt of the present invention provides a crossbow bolt capable of greater speeds, range, accuracy, kinetic energy, and lethality.

Abstract: An arrow construction system comprising a tip canister configured to receive an arrow tip and to attach to an arrow shaft. The tip canister contains a power source and sensitive electronics. The power circuit may be a battery, a primary storage capacitor, a coil and a rectifier, and/or a solar cell. The tip canister may be electrically connected to the nock via the shaft electrical conduction system. The electrical conductors may be integrated into the shaft. The wires may form a cable with standard connectors. The nock may contain a light. Alternatively, the fletching may comprise light emitting film or fibers. The circuits may include a flash circuit, an audio circuit, a radio beacon, a wireless transmitter, environmental sensors, a camera, a switch, and/or a GPS device. The switch may be activated by a current detected in a coil or by an accelerometer.