Patent ID: 8123429
Filing Date: 2012-02-28
Classification: C21D,E04C,F16B,Y10T

Abstract:
1. A reinforcing bar for concrete reinforcing 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 being enlarged as compared to the shaft, wherein the termination incorporates an engagement face incorporating locking formations thereon arranged to interfit with a complementary shaped termination to form an interlock arranged to accommodate axial loading, wherein the locking formations comprise a plurality of spaced apart upstands extending transversely across the engagement face and a plurality of recesses disposed between adjacent ones of the upstands, each upstand includes opposite side walls interconnected by a bridging portion, and the opposing side walls of adjacent ones of the upstands defining respective ones of the recesses, wherein the interlock extends along an axis and the side walls include: