Abstract: A lighted nock device includes a nock body, the nock activation collar, a nock housing and LED/battery assembly. The nock body includes a first plurality of radially arrayed teeth and a plurality of gaps defined between the teeth. The nock activation collar is disposed adjacent the first plurality of teeth. The collar includes a second plurality of radially arrayed teeth projecting longitudinally outwards towards the first plurality of teeth. The second plurality of teeth are configured to interleave with the first plurality of teeth in a first rotational position when the second plurality of teeth are rotationally aligned with the gaps between the first plurality of teeth. The second plurality of teeth are configured to abut the first plurality of teeth in a second rotational position when the second plurality of teeth are rotationally aligned with the first plurality of teeth.

Abstract: An arrow system includes a hollow arrow shaft having a front end and a rear end. A nock is disposed on the rear end of the arrow shaft. An arrowhead disposed at the front end of the arrow shaft. The arrowhead has a forward tip end and a rearward shaft end. A light source is provided to the arrow and arranged to illuminate the nock. A battery is provided to the arrow and coupled to the light source. A flight data sensor is provided to the arrow. A microprocessor is provided to the arrow and coupled to the light source, the flight data sensor and the battery.

Abstract: An arrow, arrowhead and method of shooting an arrowhead are disclosed. In one example embodiment, a plurality of blades extend outwardly from the body of an arrowhead and a sharpened tip extends forwardly. A front laser diode is disposed in the arrowhead and is arranged so that a laser beam emitted by the diode projects forward from the arrowhead through an aperture in the tip and is coaxial with the tip's center axis. In another example embodiment, the housing includes a rear facing light source to selectively light the nock. The method includes indexing the arrowhead to the vanes by tightening a set screw disposed in a portion of the arrowhead disposed in the arrow shaft.

Abstract: An arrow, arrowhead and method of shooting an arrowhead are disclosed. In one example embodiment, a plurality of blades extend outwardly from the body of an arrowhead and a sharpened tip extends forwardly. A front laser diode is disposed in the arrowhead and is arranged so that a laser beam emitted by the diode projects forward from the arrowhead through an aperture in the tip and is coaxial with the tip's center axis. In another example embodiment, the housing includes a rear facing light source to selectively light the nock. The method includes drawing the arrow back on a bow until a forward facing laser beam in an arrowhead of the arrow turns on in response to a hall effect sensor sensing the presence of a magnet on the bow.

Abstract: An arrow, arrowhead and method of shooting an arrowhead are disclosed. In one example embodiment, a plurality of blades extend outwardly from the body of an arrowhead and a sharpened tip extends forwardly. A front laser diode is disposed in the arrowhead and is arranged so that a laser beam emitted by the diode projects forward from the arrowhead through an aperture in the tip and is coaxial with the tip's center axis. In another example embodiment, the housing includes a rear facing light source to selectively light the nock. The method includes indexing the arrowhead to the vanes by tightening a set screw disposed in a portion of the arrowhead disposed in the arrow shaft.

Abstract: An arrow, arrowhead and method of shooting an arrowhead are disclosed. In one example embodiment, a plurality of blades extend outwardly from the body of an arrowhead and a sharpened tip extends forwardly. A front laser diode is disposed in the arrowhead and is arranged so that a laser beam emitted by the diode projects forward from the arrowhead through an aperture in the tip and is coaxial with the tip's center axis. In another example embodiment, the housing includes a rear facing light source to selectively light the nock. The method includes drawing the arrow back on a bow until a forward facing laser beam in an arrowhead of the arrow turns on in response to a hall effect sensor sensing the presence of a magnet on the bow.