Apparatus and method for removing outer member of plastic pipe joint

Abstract

A device for removing an outer pipe member of a plastic pipe joint. The device may include a mechanism that releaseably attaches to the outside of a pipe joint and a blade structure provided about the releaseable attachment mechanism that is configured to remove the outer member of a pipe joint. The device is configured to securely and releasably attachment, to remove the desired pipe section without damaging other components, and to leave a finished structure that resembles the original, among other disclosed features.

1 . A device for removing the outer pipe member of a plastic pipe joint, comprising: 
 a releasable attachment structure configured to achieve releasable fixedly-secure attachment to an inner pipe member of a pipe joint;    a shaft arranged with the releasable attachment structure for centering by and rotation relative to the releasable attachment structure; and    a blade structure configured to have a plurality of blades that extend annularly beyond the releasable attachment structure so as to cut the outer pipe member of a pipe joint to which the releasable attachment structure is releasably attached.    
   
   
       2 . The device of  claim 1 , the releasable attachment structure is configured to achieve fixed-secure coupling through exertion of an outwardly directed force on the interior of an inner pipe member.  
   
   
       3 . The device of  claim 1 , wherein the releasable attachment structure includes a hand operable threaded member that permits a user to release, reposition and securely attach the releasable attachment structure to the inside of a pipe joint due to rotation based movement of the threaded member.  
   
   
       4 . The device of  claim 1 , wherein the releasable attachment structure includes a conical wedge, a collett having a plurality of collett fingers and a collett ring.  
   
   
       5 . The device of  claim 1 , wherein the blade structure includes an annular member with the plurality of blades formed integrally therein.  
   
   
       6 . The device of  claim 1 , wherein each of the plurality of blades is individually removable.