Patent ID: 8656900
Filing Date: 2014-02-25
Classification: F41B

Abstract:
1. An archery bow having a pair of flexible limbs extending from a riser, a cam rotatably mounted at an end of one of said limbs and a cam or wheel mounted at an end of the other of said limbs, a bowstring extending between the cam and cam or wheel and having a nocking point for contacting the nock of a projectile to accelerate the projectile away from said bow, a pair of helically wound metal extension springs mounted on said bowstring each having a longitudinal axis coincident with said bowstring and each having adjacent coils in contact with each other, and coils in constricting contact with said bowstring, said extension springs positioned an equal distance on either side of the nocking point respectively, a serving thread wound between adjacent coils of each extension spring into contact with said bowstring to secure each extension spring in place, the serving thread in contact with said bowstring and contacting adjacent coils of said extension spring to force them apart and to provide a gripping force exerted by said adjacent coils against the serving thread to force the serving thread into secure contact with the bowstring.