Full draw hands-free bow range finder

Abstract

A unique bow range finder, weighing less than {fraction (1/16)} of an once, is custom calibrated for an archer's full draw distance and a specific hunted game, or traget object. A reference line and distance marker lines based on geometric calibrations using the full draw distance and known distances of spaced apart features of a game animal are imprinted on a decal or other adhesively attached sheet material. The decal, selected for full draw distance and desired game, is removably attached to an archer's current bow sighting frame. The range finder allows targets to be ranged at full draw.

What is claimed is:  
     
         1 . A range finder device for archery bows for use with the bow in a full draw position without requiring use of the hands of the archer to operate the range finder device, the device comprising: 
 a sheet of material capable of being removably applied to an archery bow in a location capable of being viewed by an archer with the bow in a condition of a full draw on a string-type component of the bow while aiming at a target;    a series of spaced markings on the sheet of material visible to the archer, the markings capable of being viewing simultaneously with a target, the markings being separated by marking spaces geometrically calculated on a specific full draw distance and a known size of a pair of spaced features of a specific target, the marking spaces calculated to indicate a value of the distance between the archer and a target by a first feature of the target with a first of the series of markings and comparing a second feature of the target with the other of the series of markings to determine the distance between the archer and the target as indicated by the distance between the markings.    
     
     
         2 . The range finder device of  claim 1  wherein the sheet of material comprises a strip of imprintable material and the markings are imprinted thereon.  
     
     
         3 . The range finder device of  claim 2  wherein the sheet of material further comprises an adhesive surface on a side of the material opposite to the series of markings, the adhesive surface being capable of attachment and removal and the material is attachable to the bow and removable from the bow.  
     
     
         4 . The range finder device of  claim 3  wherein the markings are fabricated of a color and contrast distinctly visible against the sheet of material and distinctly visible against a portion of the bow upon which the material is attached.  
     
     
         5 . The range finder device of  claim 2  wherein the sheet of material is a plastic decal.  
     
     
         6 . The range finder device of  claim 2  wherein the device is capable of being removably attached to a border of a sighting means on a bow and both the range finder device and the sighting means are capable of being viewed by the archer with the bow in the full draw position aimed at the target.  
     
     
         7 . The range finder device of  claim 2  wherein a number of range finder devices are capable of being fabricated with each with a particular full draw calibration and a particular target calibration so that the archer can select from the number of range finder devices a specific range finder device calibrated for the full draw of the archer and the intended target of the archer.  
     
     
         8 . The range finder device of  claim 2  wherein the markings comprise a series of vertically aligned spaced horizontal lines and the range finder device is capable of being removably mounted on a frame of a bow sight means.