Abstract: A swing blade broadhead preferably includes a shank base, a plurality of swing blades, a bullet nose and a plurality of fasteners. The shank base includes an arrow shaft shank, a blade shoulder and a blade base. The blade base preferably includes a plurality of outer flat surfaces and a circular sector formed between two adjacent outer flat surfaces. Each swing blade includes a blade portion and a pintle roll. The blade portion preferably includes a base portion and a tail portion. The pintle roll is formed on one end of the base portion to receive a fastener. The circular sectors are sized to receive an outer perimeter of the pintle roll. A plurality of tapped holes are formed in blade shoulder to threadable receive the plurality of fasteners. The bullet nose includes a plurality of counter bored holes to receive the plurality of fasteners.

Abstract: A dual opposing rotation gyroscope stabilization system preferably includes a first rotor, a second rotor, a first motor, a second motor and a frame. The first rotor includes a rotor bore formed in one end and a first outer bearing pressed on to an opposing end. At least one bore bearing is pressed into the rotor bore. The second rotor includes a first outer diameter and a second outer diameter. The second diameter is rotatably retained by the at least one bore bearing. A second outer bearing is pressed on to an end of the first outer diameter. The frame preferably includes a first end plate, a second end plate and at least one lengthwise member. The first end plate retains the first motor and the first outer bearing. The second end plate retains the second motor and the second outer bearing. A second embodiment is submersible.

Abstract: A vibration dampening limb bolt preferably includes a hollow bolt and a vibration-dampening member. The hollow bolt includes a countersunk head and a bore. At least a portion of the bore is threaded to form a threaded bore. It is preferably that a tool cavity in the countersunk head has a multiple tooth cavity configuration, which would be shaped to receive a TORX bit. The vibration-dampening member includes a vibration block and a threaded shaft. The threaded shaft extends outward from a bottom of the vibration block. The threaded shaft is threadably engagable with the threaded bore. The vibration dampening material is obtained from a vibration stabilizer manufacturer. A second embodiment of the vibration dampening limb bolt includes the hollow bolt with an unthreaded bore and a vibration-dampening member with a rod projection having at least one o-ring.

Abstract: An archery bow with a cam timing belt preferably includes a first cam pulley, a first cam cable, a first timing pulley, a second cam pulley, a second cam cable, a second timing pulley and a timing belt. An archery bow includes a riser, a first limb, a second limb, a first cam and a second cam. The riser preferably includes a first timing projection and a second timing projection. The first cam pulley and the first timing pulley are rotatably retained on the first timing projection. The first cable is preferably secured to a first cam axle and the first cam. The second cam pulley and the second timing pulley are rotatably retained on the second timing projection. The second cable is preferably secured to a second cam axle and the second cam. The timing belt is secured to the first and second timing pulleys.

Abstract: A crossbow string cocking device preferably includes a housing, a first reel, a second reel, a ratchet device, a rotary spring, a driven shaft, a drive shaft and a string pull device. The housing preferably includes a main body housing, a first end cover and a second end cover. The ratchet device is retained in a first end of the main body housing. A drive gear is rotatably retained on the drive shaft. The first reel and a ratchet gear of the ratchet device are retained on a first end of the driven shaft. A driven gear, the rotary spring and the second reel are retained on a second end of the driven shaft. The string pull device includes a ribbon and at least one string hook. A first end of the ribbon is retained on the first reel. A second end of the ribbon is retained the second reel.

Abstract: A field point for a double walled arrow shaft preferably includes a target point formed on one end and a weight reduction cavity formed in an opposing end thereof. The double walled arrow shaft includes an outer tube and an inner tube. An outer tube diameter is formed in substantially a middle of the field point to receive an inner diameter of an outer tube of the double walled arrow shaft. An end of the inner tube diameter is formed adjacent the first shaft diameter and between an end of the outer tube diameter and the opposing end of the field point to receive an inner diameter of an inner tube of the double walled arrow shaft. An end of the outer tube diameter is terminated with an outer undercut. An end of the outer tube is chamfered or tapered to be received by the outer undercut.

Abstract: An arrow shaft with a double wall, which decreases physical oscillation during the initial travel of the arrow. The arrow shaft with a double wall preferably includes an inner shaft tube and an outer shaft tube. The outer shaft tube has a normal length of an arrow shaft. The inner shaft tube has a tensile modulus, which is greater than the tensile modulus of the outer shaft tube. The oscillation of the inner shaft tube will restrict the oscillation of the outer shaft tube and thus reduce oscillation of the arrow shaft with a double wall. An arrow insert includes a tubular shaft and a shoulder. An outer diameter of the tubular shaft is sized to be received by an inner diameter of the inner shaft tube. A second embodiment of the arrow shaft with a double wall includes a dual step arrow insert.

Abstract: An expanding broadhead preferably includes a shank base, a razor tip, at least one expanding barb unit, a rear retention ring and a front retention ring. An arrow shaft shank extends from one end of the shank base and a tip slot formed in an opposing end to receive the razor tip. Each expanding barb unit preferably includes two barb elements that extend from a base ring. Each barb element preferably includes a lengthwise barb base, a first set of opposing barbs, a second set of opposing barbs and opposing bulges. The two lengthwise barb bases are bent to obtuse angles. The base ring of the expanding barb unit is bent into a substantially semi-circular shape. The rear retention ring is forced over the base ring to retain thereof on the base shank. The front retention ring is stretched and placed over the at least two barb elements.

Abstract: An improved nock bushing preferably includes a bushing body and a stop flange. The bushing body preferably has a non-round body. An undercut is preferably formed under the stop flange. 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 bushing body. The stop flange extends from one end of the bushing body. A distance across the largest cross-section dimension of the bushing 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 bushing body.

Abstract: A tubular axle for an archery bow cam preferably includes a pair of bearing blocks, a pair of bearings, a tubular axle and a pair of retention clips. The bearing block includes a bearing bore, which is sized to receive the bearing. An attachment hole is formed in each end of the bearing block. The bearing is pressed into the bearing bore. The bearing block is attached to the rectangular limb with two fasteners or the like. The tubular axle is inserted through the pair of bearings and a hub of a cam. Each end of the tubular axle is slotted to receive the pair of retention clips. A tubular axle for an archery bow with tubular limbs includes a pair of bearing blocks, which adapted for attachment to the tubular limbs.

Abstract: An archery bow cam string stop includes a titanium stop, a titanium fastener and an impact portion. The titanium stop includes an elongated body. A female thread is tapped in one end of the titanium stop and a counter bore is formed in an opposing end thereof. The counter bore reduces the weight of the titanium stop. Two parallel flats are formed on opposing sides of the elongated body, adjacent the female thread to receive an open-end wrench. A cross-sectional shape of the elongated body is preferably round. The impact portion is preferably a plurality of o-rings. The plurality of o-rings are slid over an outer perimeter of the elongated body. In use, a threaded end of the titanium fastener is inserted through a stop slot in the string cam. The threaded end is threaded into the female thread and tightened to retain the titanium in position.

Abstract: A device for locating a first natural bend of an arrow shaft preferably includes a support base, two arrow supports, a support tower and a pressure roller unit. The support base includes first and second tracks. The two arrow supports are slidably retained in the first track. Each arrow support includes a pair of bearing wheels for retaining an arrow shaft. The support tower includes a tower base and a tower pedestal. The tower base is slidably retained in the first and second tracks. The pressure roller unit includes a pressure base and two bearing wheels. The pressure base is slidably retained vertically relative to the tower pedestal. The two bearing wheels are sized to receive the arrow shaft. The pressure roller unit is lowered on to the arrow shaft. The arrow shaft is rotated with a forefinger and a thumb to determine the location of a valley.

Abstract: A two axis micro-adjusting device with a single locking mechanism preferably includes a mounting base, a first axis adjustment housing and a second axis adjustment nut. The mounting base includes a second axis housing and an attachment bracket. The first axis adjustment housing is slidably retained on the second axis housing. An end of the first axis adjustment bar is secured to a first object. The attachment bracket is attached to a second object. Rotation of a first axis adjustment screw adjusts the first axis adjustment bar in the first axis adjustment housing. Rotation of a second axis adjustment screw adjusts the second axis adjustment nut in the second axis housing. A locking fastener is tightened to lock the position of the first axis and second axis adjustments.

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: A tangent point arrow rest preferably includes an outer housing, at least two bearing assemblies and a mounting device. The outer housing includes an arrow clearance opening for insertion of an arrow shaft. Threaded bearing holes are formed through the outer housing. The mounting device may be a mounting rod or at least one boss slot, which extend from the outer housing. Each bearing assembly preferably includes a bearing housing, a tension adjustment screw, a bearing housing cap, a contact ball bearing, an inner ball bearing and a compression spring. The inner ball bearing, the tension spring and tension adjustment screw are retained in the bearing housing. The bearing housing is threaded into one of the threaded bearing holes. The bearing housing cap is threaded on to the bearing housing to retain the contact ball bearing.

Abstract: An arrow outsert preferably includes a first end and a second end. An arrow point bore is formed in the first end of the arrow outsert to receive a cylindrical portion of an arrow point. An arrow shaft bore is formed in the second end of the arrow outsert to receive an arrow shaft. An outer surface of the arrow outsert is preferably tapered starting at the second end. A female thread is formed through a middle of the arrow outsert to threadably engage a threaded stud of the arrow point. A plurality of axial slots are formed in an outer perimeter of the arrow outsert. The arrow outsert is secured to an end of an arrow shaft by applying glue, adhesive or the like, before insertion into the arrow shaft bore. The threaded stud of the arrow point is threaded into the female thread to complete assembly.

Abstract: An arrow preparation system preferably includes a lengthwise base, at least two arrow supports and a grinding member. The lengthwise base preferably includes a pair opposing rails for slidably retaining the at least two arrow supports and the grinding member. Each arrow support preferably includes a support slidable base, a pair of roller bearings, an anchor pin and a knurled nut. The knurled nut is secured to anchor pin and threadably retained in the support slidable base. The pair of roller bearings are rotatably retained on a top of the support slidable base to support an arrow shaft. The grinding member preferably includes a slidable grinding base, the anchor pin and the knurled nut. The slidable grinding base includes a vertical grinding face. A piece of self-sticking sandpaper is applied to the vertical grinding face. The knurled nut and anchor pin and threadably retained in the slidable grinding base.

Abstract: An electronic device adapted for use as a shooting sight preferably includes an electronic device and an application software program. The electronic device includes a microprocessor, operating system software a and a flat screen display. The application software program is installed in the microprocessor. The application software program communicates with the operating system. The application software program includes sight indicia, a weapon profile input, a laser finder input and operation display tabs. The sight indicia overlays a video image on the flat screen display. The operation display tabs are displayed on the flat screen display in addition to the sight indicia. The type, position, color and size of the sight indicia is set by clicking on operation display tabs. A retention bracket holds the electronic device and is secured to a weapon. The sight indicia is aligned with an image seen on the flat screen display.

Abstract: In arrows with an arrow shaft, an arrow vane apparatus includes an arrow vane for connection with an arrow shaft where the arrow vane includes an inside surface for connection with the arrow shaft. A first outer surface and a second outer surface are provided such that the first outer surface and the second outer surface are connected with the inside surface. Further, the first outer surface and the second outer surface are also connected along an outside edge and the arrow vane includes an air channel.