Expandable baton

Abstract

An expandable baton includes an internally threaded first tube; a first inner support tube disposed in the first tube and including first external threads secured to the internal threads of the first tube; a second inner support tube spaced from the first inner support tube with a first annular groove formed between them; a second lock mechanism at a first end of the second tube and including two second lock protuberances and a second externally threaded connection wherein the second externally threaded connection includes a second shoulder; a release mechanism including an axially moveable lock needle having a pointed second end and a pushbutton at a first end, a pressing of the pushbutton moves the lock needle to either insert into or disengage from the second lock mechanism, thereby unlocking the second lock protuberances or locking same; and a positioning member for limiting the release mechanism.

1 . An expandable baton, comprising:
 a first tube including internal threads on an inner surface of a second end;   a second tube;   a first inner support tube having a diameter less than that of the first tube, the first inner support tube including first external threads on an outer surface, the first external threads being secured to the internal threads of the first tube; and   a second inner support tube having a diameter less than that of the first tube, the second inner support tube including second external threads on an outer surface, the second external threads being secured to the internal threads of the first tube, the second inner support tube spaced from the first inner support tube with a first annular groove formed between them.   
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . The expandable baton of  claim 1 , further comprising at least one first wear resistant ring disposed on an inner surface of the first tube. 
     
     
         6 . (canceled) 
     
     
         7 . The expandable baton of  claim 1 , further comprising a plug threadedly secured to a second end of the second tube.