Golf Putter Head with Maximized Fore-Aft Weighting and Vertical Sweetspot

Abstract

This invention maximizes the distribution of mass of the club head to the front and back of the club head to maximize the sweetspot vertically. Mass is concentrated in front and back bars. Mass is minimized in between the bars by use of light weight tubes, one at the heel and one at the toe, that connect the front and back bars to each other. A screw inside each tube cinches the bars against the tubes. A hosel is on the heel tube. The lie of the club is adjustable by loosening the heel side cinching screw which allows the heel tube to turn against the bars. Forward press is adjustable by loosening set screws and turning the bent golf shaft in the hosel. Weights can be added and removed within the tubes to adjust the club head weight.

I claim: 
     
         1 . A golf club comprising a club head, a golf shaft, and a golf shaft attaching means attaching the golf shaft to the head, in which said club head comprises
 a. a front bar, at the front of the club head, disposed from heel to toe, with a ball striking surface on the front-facing side, with tube cinching means, and tube locating means near each end,   b. a back bar, at the back of the club head, disposed from heel to toe, with tube cinching means, and tube locating means near each end,   c. a heel tube, toward the heel of the club head, spanning between the front and back bars, positioned on the bars by the tube locating means, and held against the bars by cinching means,   d. a toe tube, toward the toe of the club head, spanning between the front and back bars, positioned on the bars by the tube locating means, and held against the bars by cinching means,   e. the front bar and back bar, in the plan view, appear to be at right angles to the heel and toe tubes.   
     
     
         2 . A golf club of  claim 1  wherein the cinching means includes an elongated cinching member inside each tube, connecting to the bars, to cinch the bars against the tubes. 
     
     
         3 . A golf club of  claim 1  wherein the tube locating means is a recess in the bar, into which the tube fits. 
     
     
         4 . A golf club of  claim 1  wherein the golf shaft attaching means is located on the heel tube. 
     
     
         5 . A golf club of  claim 4  wherein the golf shaft attaching means comprises (a) a golf shaft receiving tube, and (b) a means of fixing the golf shaft receiving tube to the heel tube. 
     
     
         6 . A golf club of  claim 5  wherein the means of fixing the golf shaft receiving tube to the heel tube is a ring on the heel tube. 
     
     
         7 . A golf club of  claim 4  wherein the golf shaft is fixed in the golf shaft receiving tube by a retaining means which allows the shaft to be turned and fixed in a new position. 
     
     
         8 . A golf club of  claim 7  wherein the retaining means is one or more set screws in the golf shaft receiving tube, such that the tightened set screws press against the golf shaft. 
     
     
         9 . A golf club of  claim 2  in which club head lie is adjusted by loosening the elongated cinching member at the heel of the club head, revolving the club head about the heel tube, and then retightening the elongated cinching member. 
     
     
         10 . A golf club of  claim 8  wherein the golf shaft has a bend near the golf shaft receiving tube, and an adjustment of forward press is made by loosening the set screws, turning the golf shaft in the golf shaft receiving tube, and re-tightening the set screws. 
     
     
         11 . A golf club of  claim 2  wherein the elongated cinching member has mass added detachably to it. 
     
     
         12 . A golf club of  claim 1  wherein the bars are made of a dense material such as steel, and the tubes are made of light material such as carbon fiber composite. 
     
     
         13 . A golf club of  claim 4  wherein the golf shaft attaching means allows the golf shaft to be unfixed, turned to consumer preference, and fixed again.