Rotary polishers and methods of making the same

Abstract

Embodiments of a rotary polisher with a spindle lock to allow quick removal of the backplate are provided. In preferred embodiments, the rotary polisher comprises: a body including a neck; a spindle extending down from the body through the neck and coaxial with the neck wherein the spindle has a threaded end extending down below the neck and wherein the spindle has a cavity; a backplate coupled to the threaded end of the spindle; and a button coupled to a pin wherein the button and pin are aligned with the cavity and pass through an outside wall of the neck and wherein the pin is moveable in and out of the cavity.

What is claimed is: 
     
         1 . A rotary polisher comprising:
 a body including a neck;   a spindle extending down from the body through the neck and coaxial with the neck wherein the spindle has a threaded end extending down below the neck and wherein the spindle has a cavity;   a backplate coupled to the threaded end of the spindle; and   a button coupled to a pin wherein the button and pin are aligned with the cavity and pass through an outside wall of the neck and wherein the pin is moveable in and out of the cavity.   
     
     
         2 . The rotary polisher of  claim 1  wherein the spindle includes a boss and the cavity is formed in the boss. 
     
     
         3 . The rotary polisher of  claim 1 , wherein the body includes a lower handle, center portion and upper handle and the spindle is located on a bottom of the upper handle. 
     
     
         4 . The rotary polisher of  claim 1 , wherein the backplate includes a releasable surface for connection to an applicator. 
     
     
         5 . The rotary polisher of  claim 1 , wherein the button is round. 
     
     
         6 . The rotary polisher of  claim 1 , further comprising a spring wherein the spring biases the pin away from the spindle. 
     
     
         7 . The rotary polisher of  claim 3 , wherein the button is located on a front of the neck. 
     
     
         8 . A rotary polisher comprising:
 a body including a bottom handle, an upper handle and a neck extending down from a bottom of the upper handle;   a spindle extending down from the body through the neck and coaxial with a hole through the neck wherein the spindle has a threaded end extending down below the neck and wherein the spindle has a cavity;   a backplate coupled to the threaded end of the spindle; and   a button coupled to the neck and moveable in a perpendicular direction to a longitudinal axis of the spindle wherein translating the button towards the spindle causes a pin to be inserted into a cavity in the spindle.   
     
     
         9 . The rotary polisher of  claim 8 , wherein the spindle includes a boss and the cavity is formed in the boss. 
     
     
         10 . The rotary polisher of  claim 8 , wherein the backplate has a releasable surface for coupling to an applicator. 
     
     
         11 . The rotary polisher of  claim 8 , wherein the button is round. 
     
     
         12 . The rotary polisher of  claim 8 , further comprising a spring wherein the spring biases the pin away from the spindle. 
     
     
         13 . The rotary polisher of  claim 8 , wherein the button is located on a front of the neck. 
     
     
         14 . A rotary polisher comprising:
 a body including a neck;   a spindle extending down from the body through the neck wherein the spindle has a threaded end extending down below the neck and wherein the spindle has a hole in the outside surface of the spindle perpendicular to a longitudinal axis of the spindle;   a backplate coupled to the threaded end of the spindle; and   a button and a pin coupled to the neck and moveable in a perpendicular direction to the longitudinal axis of the spindle wherein the button and pin are aligned with the hole.   
     
     
         15 . The rotary polisher of  claim 14 , wherein the spindle includes a boss and the cavity is formed in the boss. 
     
     
         16 . The rotary polisher of  claim 14 , wherein the body includes a lower handle, center portion and upper handle and the spindle is located on a bottom of the upper handle. 
     
     
         17 . The rotary polisher of  claim 14 , wherein the backplate includes a releasable surface for connection to an applicator. 
     
     
         18 . The rotary polisher of  claim 14 , wherein the button is round. 
     
     
         19 . The rotary polisher of  claim 14 , further comprising a spring wherein the spring biases the pin away from the spindle. 
     
     
         20 . The rotary polisher of  claim 16 , wherein the button is located on a front of the neck.