Reverse draw technology archery

• US 7,328,693 B2
• Filed: 09/16/2004
• Issued: 02/12/2008
• Est. Priority Date: 09/16/2004
• Status: Active Grant

• Current Assignee: James J. Kempf
• Original Assignee: James J. Kempf
• Inventors: Kempf, James J.
• Primary Examiner(s): Ricci; John A.
• Application Number:
  US10/942,264
• Publication Number:
  US 20060054150A1
• Time in Patent Office: 1,244 Days
• Field of Search: 124/23.1, 124/25, 124/25.6
• US Class Current: 124/25
• CPC Class Codes: F41B 5/123 Compound crossbows

Abstract

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.

Claims

1. A bow comprising:

a) a riser;

b) a first limb extending at least partially outward from said riser;

c) a second limb extending at least partially forward and outward from said riser;

d) a first string guide journaled to said first limb at a first point, wherein said first string guide is a cam;

e) a second string guide journaled to said second limb at a second point;

f) a string extending between said first string guide and said second string guide; and

g) a projectile engaged to said string on a side of said riser opposite a side of said riser where said first string guide and said second string guide are located.

2. The bow of claim 1, wherein said bow is a crossbow.

3. The bow of claim 2, further comprising a latch and trigger assembly operably coupled to said string.