Apparatus for connecting sucker rods

Abstract

A apparatus having an elongate body having an exterior surface, a first end and a second end. A first coupling is positioned at the first end which adapted to mate with a first sucker rod. A second coupling is positioned at the second end which is adapted to mate with a second sucker rod to form a sucker rod string. At least one helical fin spiralling around at least a portion of the exterior surface of the body, such that, upon rotation of the sucker string, the at least one helical fin creates fluid movement.

1 . A apparatus, comprising 
 an elongate body having an exterior surface, a first end and a second end;    a first coupling positioned at the first end adapted to mate with a first sucker rod;    a second coupling positioned at the second end adapted to mate with a second sucker rod to form a sucker rod string; and    at least one raised profile spiralling around at least a portion of the exterior surface of the body, such that, upon rotation of the sucker string, the at least one helical fin creates fluid movement.    
   
   
       2 . The apparatus as defined in  claim 1 , wherein the at least one raised profile is a helical fin.  
   
   
       3 . The apparatus as defined in  claim 1  wherein the at least one raised profile spirals around the exterior surface of elongate body from the first end to the second end.  
   
   
       4 . The apparatus as defined in  claim 1  wherein the at least one raised profile spirals around the first coupling and along the exterior surface and around the second coupling.  
   
   
       5 . The apparatus as defined in  claim 1  wherein the first coupling has a threaded bore adapted to receive a threaded end of the first sucker rod.  
   
   
       6 . The apparatus as defined in  claim 1  wherein the second coupling has a threaded bore adapted to receive a threaded end of the second sucker rod.