Removable grinding disk attachment surface for grinding head

Abstract

A driver interface for a grinding head includes a center plate having top and bottom surfaces, an outer edge, a mounting channel in the top surface, and mounting pads on the bottom surface, each pad having a raised edge. An upper clamping plate is inserted within the mounting channel. A lower clamping plate defines disk locating apertures and fastens to the bottom surface of the center plate so that each of the disk locating apertures surround the raised edge of a mounting pad. The upper and lower clamping plates are removably fastened to the center plate. A disk attacher having an anchoring portion and a disk receiving portion bends around the outer edge of the center plate so that the upper clamping plate when fastened to the center plate clamps the anchoring portion between the upper clamping plate and the mounting channel, and so that the lower clamping plate when fastened to the center plate clamps the disk receiving portion to a mounting pad and within one of the disk locating apertures.

1 - 19 . (canceled) 
     
     
         20 . A removable grinding disk attachment surface for a grinding head having top and bottom surfaces, comprising:
 a flexible patch formed from touch fastener material, the patch having a touch fastening surface and a smooth surface opposite the touch fastening surface;   the touch fastening surface defining a disk receiving area configured to receive a complementary touch fastening surface covering one side of a removable grinding disk; and   one or more anchoring wings extending outwardly from the disk receiving area;   wherein the patch is bendable around an outer edge of the grinding head to allow at least one of the anchoring wings to lie flush against the top surface of the grinding head while allowing the disk receiving area and at least one other of the anchoring wings to lie flush against the bottom surface of the grinding head.   
     
     
         21 . The removable grinding disk attachment surface of  claim 20 , wherein one or more of the anchoring wings defines a retaining hole through the patch. 
     
     
         22 . The removable grinding disk attachment surface of  claim 21 , wherein one or more of the retaining holes is a generally rectangular hole. 
     
     
         23 . The removable grinding disk attachment surface of  claim 21 , wherein one or more of the retaining holes is a generally circular hole. 
     
     
         24 . The removable grinding disk attachment surface of  claim 21 , wherein the one or more retaining holes are configured to interface with complementary rails and pegs on a driver interface. 
     
     
         25 . The removable grinding disk attachment surface of  claim 21 , wherein each of the one or more retaining holes are defined substantially at a perimeter of a corresponding one of the one or more anchoring wings. 
     
     
         26 . The removable grinding disk attachment surface of  claim 20 , wherein the removable grinding disk attachment surface is configured to be installed to a center plate of a driver interface between an upper clamping plate and a lower clamping plate. 
     
     
         27 . The removable grinding disk attachment surface of  claim 20 , wherein the touch fastening surface comprises one complementary surface of a re-closable fastener. 
     
     
         28 . The removable grinding disk attachment surface of  claim 27 , wherein the one complementary surface comprises a hook surface or a loop surface of a hook-and-loop fastener. 
     
     
         29 . The removable grinding disk attachment surface of  claim 20 , wherein the anchoring wings extend substantially radially symmetrically about the disk receiving portion of the surface. 
     
     
         30 . The removable grinding disk attachment surface of  claim 20 , wherein the removable grinding disk attachment surface is bilaterally symmetrical. 
     
     
         31 . The removable grinding disk attachment surface of  claim 20 , wherein the smooth surface of at least one of the anchoring wings comprises an adhesive. 
     
     
         32 . The removable grinding disk attachment surface of  claim 20 , wherein the disk receiving area defines a circular area larger than a corresponding grinding disk. 
     
     
         33 . The removable grinding disk attachment surface of  claim 20 , wherein the removable grinding disk attachment surface is sufficiently thin and flexible to bend around the grinding head without loss of integrity. 
     
     
         34 . The removable grinding disk attachment surface of  claim 20 , wherein the removable grinding disk attachment surface is configured for installation on a driver interface. 
     
     
         35 . The removable grinding disk attachment surface of  claim 20 , wherein the disk receiving portion is configured to receive at least one grinding disk. 
     
     
         36 . The removable grinding disk attachment surface of  claim 20 , wherein the removable grinding disk attachment surface comprises a general arrowhead shape with a flat nose. 
     
     
         37 . The removable grinding disk attachment surface of  claim 20 , wherein the one or more anchoring wings further comprises at least one pair of symmetrical anchoring wings.