Magnetic nock system

Abstract

An arrow nock system for holding an arrow and permitting true release from a bow wherein an arrow nock is positioned on an end of an arrow shaft and is magnetically engageable with a ball nock having an at least partially spherical outer surface attached to a bowstring.

1 . An arrow nock system for holding an arrow within a bow to permit a true release, the system comprising:
 an arrow shaft;   an arrow nock positioned on an end of the arrow shaft, the arrow nock having a cavity;   a magnet and two pole pieces positioned within the arrow nock, the magnet positioned between the two pole pieces; and   a ball nock positioned on a bowstring of the bow, the ball nock magnetically engageable with the arrow nock.   
   
   
       2 . The arrow nock system of  claim 1  wherein the two pole pieces include generally semispherical recesses to direct polarity of the magnet through the ball nock. 
   
   
       3 . The arrow nock system of  claim 2  wherein a north pole of the magnet is aligned with one pole piece of the two pole pieces and a south pole of the magnet is aligned with an opposite pole piece of the two pole pieces. 
   
   
       4 . The arrow nock system of  claim 1  wherein the ball nock comprises a hemispherical shell fastened to the bowstring. 
   
   
       5 . The arrow nock system of  claim 4  further comprising a backing shell connected to the hemispherical shell around the bowstring. 
   
   
       6 . The arrow nock system of  claim 1  further comprising:
 an index mark positioned on the arrow nock.   
   
   
       7 . The arrow nock system of  claim 1  wherein the magnet and the pole pieces are positioned at least partially within the cavity of the arrow nock. 
   
   
       8 . An arrow nock system for holding an arrow and permitting release from a bow, the system comprising:
 an arrow nock positioned on an end of an arrow shaft, the arrow nock having a cavity;   a magnet and two pole pieces positioned within the arrow nock; and   a ball nock positioned on a bowstring of the bow and the two pole pieces positioned around the magnet to direct polarity of the magnet through the ball nock to magnetically engage the ball nock with the arrow nock.   
   
   
       9 . The arrow nock system of  claim 8  wherein the magnet is positioned between the two pole pieces and a north pole of the magnet is aligned with one pole piece of the two pole pieces and a south pole of the magnet is aligned with an opposite pole piece of the two pole pieces. 
   
   
       10 . The arrow nock system of  claim 8  wherein the two pole pieces include generally semispherical recesses to direct the polarity of the magnet through the ball nock. 
   
   
       11 . The arrow nock system of  claim 8  wherein the ball nock comprises a hemispherical shell fastened to the bowstring. 
   
   
       12 . The arrow nock system of  claim 11  further comprising a backing shell connected to the hemispherical shell around the bowstring. 
   
   
       13 . The arrow nock system of  claim 8  further comprising:
 an index mark positioned on the arrow nock.   
   
   
       14 . The arrow nock system of  claim 8  further comprising:
 a secondary string connected to the bowstring on either side of the ball nock.   
   
   
       15 . An arrow nock system for holding an arrow and permitting release from a bow, the system comprising:
 an arrow nock positioned on an end of an arrow shaft, the arrow nock having a cavity;   a magnet and two pole pieces positioned within the arrow nock, the magnet positioned between the two pole pieces and each pole piece of the two pole pieces having a generally semispherical recess; and   a ball nock having a generally hemispherical outer surface, the ball nock positioned on a bowstring of the bow and in magnetic contact with the two pole pieces to engage the ball nock with the arrow nock.   
   
   
       16 . The arrow nock system of  claim 15  wherein the ball nock comprises a hemispherical shell and a backing shell sandwiched around the bowstring. 
   
   
       17 . The arrow nock system of  claim 15  further comprising:
 an index mark positioned on the arrow nock.   
   
   
       18 . The arrow nock system of  claim 15  wherein a north pole of the magnet is aligned with one pole piece of the two pole pieces and a south pole of the magnet is aligned with an opposite pole piece of the two pole pieces.