Patent ID: 9637924
Date: 2017-05-02
CPC Classifications: B21F,C21D,E04C,Y10T

Claim:
1. A reinforcing bar comprising a shaft extending along a portion of the length of the bar and a termination extending along an end portion of the bar, the termination incorporating an engagement face incorporating locking formations thereon arranged to interfit with a complementary shaped termination to form an interlock arranged to accommodate axial loading, the locking formations comprising a plurality of spaced apart upstands extending transversely across the engagement face, and a plurality of recesses disposed between adjacent ones of the upstands, wherein, in use the upstands and recesses interfit with upstands and recesses disposed on the complementary shaped termination, wherein to facilitate proper mating of the terminations in forming an interlock an end upstand adjacent a terminal end of the bar is wider than the other upstands and an innermost recess is wider than the other recesses to receive an upstand of the shape of the end upstand.