Abstract: A lighted nock assembly may include an LED/battery assembly, a nock, a housing and a sleeve. The housing can be releasably coupled within the center opening of the nock sleeve and resist longitudinal translation of the battery relative to the nock sleeve. The nock translates longitudinally with respect to the nock sleeve between an activated configuration that activates the LED portion and a deactivated configuration that deactivates the LED portion without removing the LED/battery assembly from the nock sleeve.

Abstract: A lighted nock assembly may include an LED/battery assembly, a nock, a housing and a sleeve. The housing can be releasably coupled within the center opening of the nock sleeve and resist longitudinal translation of the battery relative to the nock sleeve. The nock translates longitudinally with respect to the nock sleeve between an activated configuration that activates the LED portion and a deactivated configuration that deactivates the LED portion without removing the LED/battery assembly from the nock sleeve.

Abstract: A lighted nock assembly may include an LED/battery assembly, a nock, a housing and a sleeve. The housing can be releasably coupled within the center opening of the nock sleeve and resist longitudinal translation of the battery relative to the nock sleeve. The nock translates longitudinally with respect to the nock sleeve between an activated configuration that activates the LED portion and a deactivated configuration that deactivates the LED portion without removing the LED/battery assembly from the nock sleeve.

Abstract: A lighted nock assembly may include an LED/battery assembly, a nock, a housing and a sleeve. The housing can be releasably coupled within the center opening of the nock sleeve and resist longitudinal translation of the battery relative to the nock sleeve. The nock translates longitudinally with respect to the nock sleeve between an activated configuration that activates the LED portion and a deactivated configuration that deactivates the LED portion without removing the LED/battery assembly from the nock sleeve.

Abstract: A lighted nock assembly may include an LED/battery assembly, a nock, a housing and a sleeve. The housing can be releasably coupled within the center opening of the nock sleeve and resist longitudinal translation of the battery relative to the nock sleeve. The nock translates longitudinally with respect to the nock sleeve between an activated configuration that activates the LED portion and a deactivated configuration that deactivates the LED portion without removing the LED/battery assembly from the nock sleeve.

Abstract: A lighted nock assembly may include an LED/battery assembly, a nock, a housing and a sleeve. The housing can be releasably coupled within the center opening of the nock sleeve and resist longitudinal translation of the battery relative to the nock sleeve. The nock translates longitudinally with respect to the nock sleeve between an activated configuration that activates the LED portion and a deactivated configuration that deactivates the LED portion without removing the LED/battery assembly from the nock sleeve.

Abstract: An archery nock includes a nock assembly and a light source disposed within the nock assembly. The light source includes a first color element and a second color element. The second color element is a different color than the first color element. The light source is configured to flash the first and second color elements on and off.

Abstract: An archery nock system includes a bushing and a nock assembly. A hollow interior of the bushing can define a first inner diameter region, a reduced inner diameter region, a sloped inner diameter region and an expanded inner diameter region. A diameter of the reduced inner diameter region is smaller than that of the first inner diameter region. The diameter of the reduced inner diameter region is smaller than that of the expanded inner diameter region. The first inner diameter region is located longitudinally between the reduced inner diameter region and the proximal end of the bushing. The expanded inner diameter region is located longitudinally between the reduced inner diameter region and the distal end of the bushing. The sloped inner diameter region spans longitudinally between the reduced inner diameter region and the expanded inner diameter region. An LED turn ON force can be greater than the turn OFF force.

Abstract: A lighted nock assembly may include an LED/battery assembly, a nock housing and a nock body. The LED/battery assembly can include an LED and a battery. The nock housing can include a cylindrical structure so that an outer surface is inserted into a rear end of an arrow, wherein a portion of the LED/battery assembly is disposed within the nock housing. The nock body can be linearly movable towards and away from the nock housing. A portion of the LED/battery assembly is secured within the nock body such that moving the nock body away from the nock housing along a straight line turns the LED from a lighted state to an unlighted state.

Abstract: An archery nock includes a nock assembly and a light source disposed within the nock assembly. The light source includes a first color element and a second color element. The second color element is a different color than the first color element. The light source is configured to flash the first and second color elements on and off.

Abstract: An LED of a lighted nock sequentially advances through multiple different emitted colors by exposing the nock to a magnetic field. The nock is placed in the activated or lit state. Then a magnet is brought within range of a magnetic sensor included in the electronic circuit of the nock assembly. The change in the magnetic field causes the electronic circuit to advance the emitted LED light to the next color in a sequence of multiple colors. Repeated removal and re-application of the magnetic field while the LED remains lit advances the LED color repeatedly through the available colors until the user reaches their desired color. Then the LED is deactivated or turned off. Then when the LED is re-lit, it will still be in the last color chosen, and will remain there until the color is advanced again.

Abstract: A lighted nock assembly may include an LED/battery assembly, a nock housing and a nock body. The LED/battery assembly can include an LED and a battery. The nock housing can include a cylindrical structure so that an outer surface is inserted into a rear end of an arrow, wherein a portion of the LED/battery assembly is disposed within the nock housing. The nock body can be linearly movable towards and away from the nock housing. A portion of the LED/battery assembly is secured within the nock body such that moving the nock body away from the nock housing along a straight line turns the LED from a lighted state to an unlighted state.

Abstract: A nock body may include a first end and an opposing second end. A nock housing may include a proximal end that engages the first end of the nock body and a distal end opposite the proximal end. A slot may be defined in the nock housing beginning at the distal end that extends in a direction of the proximal end. An LED/battery assembly may be disposed at least partially inside of the nock housing. A fastener may be secured to the nock housing in a location that causes a width of the slot to narrow and secure the LED/battery assembly. A groove may be defined in the nock body beginning at the first end that extends towards the second end. A nock activation lockout can be provided to block an LED activation gap from closing so that the LED does not unintentionally turn on.

Abstract: A glueless shaft joining system, apparatus and method are disclosed. A base insertable into the hollow interior of the shaft can include a plurality of flexible fingers separated by a slot defined between each of the adjacent flexible fingers. The interior of the base is hollow and includes a threaded portion adjacent to the distal end that extends inwards in a proximal direction. A set screw can be inserted into the threaded portion of the hollow interior of the base. The set screw includes a threaded head portion and a non-threaded tail portion that diverges as it extends away from the head portion. The tail portion deflects the flexible fingers laterally outwardly as the set screw is advanced in the proximal direction through the base. A component, such as a broad head or arrow nock can be coupled to the insert as desired.

Abstract: An LED of a lighted nock sequentially advances through multiple different emitted colors by exposing the nock to a magnetic field. The nock is placed in the activated or lit state. Then a magnet is brought within range of a magnetic sensor included in the electronic circuit of the nock assembly. The change in the magnetic field causes the electronic circuit to advance the emitted LED light to the next color in a sequence of multiple colors. Repeated removal and re-application of the magnetic field while the LED remains lit advances the LED color repeatedly through the available colors until the user reaches their desired color. Then the LED is deactivated or turned off. Then when the LED is re-lit, it will still be in the last color chosen, and will remain there until the color is advanced again.

Abstract: A nock body may include a first end and an opposing second end. A nock housing may include a proximal end that engages the first end of the nock body and a distal end opposite the proximal end. A slot may be defined in the nock housing beginning at the distal end that extends in a direction of the proximal end. An LED/battery assembly may be disposed at least partially inside of the nock housing. A fastener may be secured to the nock housing in a location that causes a width of the slot to narrow and secure the LED/battery assembly. A groove may be defined in the nock body beginning at the first end that extends towards the second end. A nock activation lockout can be provided to block an LED activation gap from closing so that the LED does not unintentionally turn on.

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: A lighted nock system includes a lighted nock assembly and a plurality of adaptors. The lighted nock assembly includes a shaft insertion portion having a shaft outer shape and shaft outer dimension. The first adaptor includes an internal opening having an internal size and internal shape configured to mate with the shaft insertion portion of the lighted nock assembly. The second adaptor includes the same internal opening size and shape as the first adaptor. The outer diameter of the second adaptor is different than the outer diameter of the first adaptor. A plurality of adaptors having different sized outer diameters, but the same internal configurations, can be provided in a single package with the lighted nock assembly. The lighted nock assembly can include a rotatable lockout collar to prevent unintended activation of the lighted nock assembly.

Abstract: A glueless shaft joining system, apparatus and method are disclosed. An expandable insert, half-out insert or outsert is disposable at least partially into the inside of the shaft of an arrow or other tubular member such as a golf club shaft. A set screw can be proximally threaded inwards from a distal end of the insert to expand finger elements to lock the insert and arrowhead attached thereto in place. A component, such as a broad head or arrow nock can be coupled to the insert as desired.

Abstract: A lighted nock system includes a lighted nock assembly and a plurality of adaptors. The lighted nock assembly includes a shaft insertion portion having a shaft outer shape and shaft outer dimension. The first adaptor includes an internal opening having an internal size and internal shape configured to mate with the shaft insertion portion of the lighted nock assembly. The second adaptor includes the same internal opening size and shape as the first adaptor. The outer diameter of the second adaptor is different than the outer diameter of the first adaptor. A plurality of adaptors having different sized outer diameters, but the same internal configurations, can be provided in a single package with the lighted nock assembly. The lighted nock assembly can include a rotatable lockout collar to prevent unintended activation of the lighted nock assembly.