发明名称 Reverse draw technology archery
摘要 The nature of the current invention is an archery device that uses what I claim as Reverse Draw Technology. In essance, what this is, is pulling the launch string of a bow or crossbow in the opposite direction that it is pulled in all prior art. Pulling the launch string into the curve of the opposing limbs, instead of away from them, allows for a longer power stroke, thus increasing performance and allowing, if so chosen, a lower draw weight, which translates to less noise at the same arrow speed. Arrow speed is determined by the force required to pull the launch string from an at rest position to the ready to fire position, and the distance the string is pulled. This distance is called the power stroke. By increasing the power stroke and decreasing the drawing force, comparable arrow speed is achieved with much less noise and effort on the part of the archer.
申请公布号 US7328693(B2) 申请公布日期 2008.02.12
申请号 US20040942264 申请日期 2004.09.16
申请人 KEMPF JAMES J 发明人 KEMPF JAMES J.
分类号 F41B5/12;F41B5/10 主分类号 F41B5/12
代理机构 代理人
主权项
地址