Putt ruler

Abstract

A putt ruler is a device that separates the skills of straight-line putting from reading the green. The putt ruler may be affixed to the golf green and may be rotated to align with the identified target line. Through placement of two golf balls atop the putt ruler, a golfer may produce a putt that follows a straight line, when the stroke used may not have produced a straight-line putt on a single golf ball. The golfer may then evaluate the chosen target line in relation to the resultant putt and evaluate the speed of the putt as the ball travels along the playing surface.

1 . A method to use a putt ruler, comprising:
 reading a playing surface between an origin and a target to determine a vector from the origin toward the target;   placing a putt ruler on the playing surface, the putt ruler comprising a device with two cavities defined on a top surface of the putt ruler spaced such that one golf ball placed in one cavity contacts another golf ball placed in a second cavity, a line between the centers of the cavities defining an axis of the putt ruler;   aligning the axis of the putt ruler with the vector;   seating a first golf ball in the cavity farthest from the target and a second golf ball in the cavity nearest to the target, and the first golf ball and the second golf ball sharing a point of contact;   applying a force to the surface of the first golf ball; and   observing the motion of the second golf ball seated in the second hole as the second golf ball traverses the playing surface.   
     
     
         2 . The method of  claim 1 , wherein placing the putt ruler comprises affixing the putt ruler to the surface of the green through the use of a tapered peg inserted into the first cavity. 
     
     
         3 . The method of  claim 2 , wherein placing the putt ruler comprises rotating the putt ruler about an axis through the longitudinal center of the peg to a position such that a line along the putt ruler axis is aligned with the vector. 
     
     
         4 . The method of  claim 1 , wherein placing the putt ruler comprises affixing the putt ruler to the surface of the green through the use of a screw in peg that is threaded onto a cavity of the putt ruler. 
     
     
         5 . The method of  claim 1 , wherein the first golf ball and the second golf ball are seated atop the putt ruler by placing each golf ball on top of one of the cavities such that the first golf ball is in contact with the second golf ball at the point where the two balls touch along the lateral line connecting the centers of the two balls. 
     
     
         6 . The method of  claim 1 , wherein the applied force is applied to the first golf ball through the use of a putter, the applied force being transferred from the first golf ball to the golf second ball through the contact point, the motion of the second golf ball being along the target line to which the putt ruler was aligned. 
     
     
         7 . A putt ruler assembly to be used as a golf training device, comprising:
 a device with a top surface having defined therein a first cavity located at a position near either end of the device and along the longitudinal center of the device;   the flat top surface having defined therein a second cavity located on the interior side of the first cavity and along the longitudinal center of the device, a distance between a center of the first cavity and a center of the second cavity being substantially equal to the diameter of a standard sized golf ball to be seated into each cavity; and   a first standard sized golf ball positioned in the first cavity and a second standard sized golf ball positioned in the second cavity, wherein the first standard sized golf ball and the second standard sized golf ball share a point of contact.   
     
     
         8 . The putt ruler assembly of  claim 7 , further comprising a peg of suitable dimensions to be inserted into the first cavity to secure the device to a playing surface. 
     
     
         9 . The putt ruler assembly of  claim 7 , wherein the device is of suitable length such that two balls may be seated atop the device and along the longitudinal center of the device. 
     
     
         10 . The putt ruler assembly of  claim 7 , where in the device is of suitable height such that the device is semi-rigid or rigid and a ball may make smooth transition from the surface of the device to the playing surface. 
     
     
         11 . The putt ruler assembly of  claim 7 , wherein the diameter of the first cavity is tapered from the top surface of the device to the bottom surface of the device, the diameter of the first cavity along the top surface of the device being of suitable dimension to seat a ball atop the cavity. 
     
     
         12 . The putt ruler assembly of  claim 11 , wherein the diameter of the second cavity being uniform throughout the height of the device and is of equal measurement to the diameter of the first cavity along the top surface of the device. 
     
     
         13 . The putt ruler assembly of  claim 7 , wherein the first standard sized golf ball seated in the first cavity and the second standard sized golf ball seated in the second cavity share the point of contact along the longitudinal center of the device. 
     
     
         14 . The putt ruler assembly of  claim 8 , wherein the peg has a suitable length such that the peg will pass through the device, into the playing surface beneath the device, thereby securing the device into the playing surface. 
     
     
         15 . The putt ruler assembly of  claim 7 , wherein the peg has suitable cross-sectional diameter to conform to the tapered dimensions of the first cavity and continued tapering along the length of the peg. 
     
     
         16 . The putt ruler assembly of  claim 7 , further comprising a screw in peg that is threaded onto a cavity of the putt ruler to affix the putt ruler to the playing surface. 
     
     
         17 . The putt ruler assembly of  claim 7 , wherein the diameter of the standard sized golf ball is 1.68 inches. 
     
     
         18 . The putt ruler assembly of  claim 7 , further comprising a permanently affixed peg protruding from the bottom of the device to secure the device to a playing surface.