Patent ID: 6286270
Filing Date: 2001-09-11
Classification: E04C,E04G

Abstract:
A reinforcing bar anchor embedded in and bonded to concrete comprising an axially elongated generally cylindrical core, a socket in at least one end of said core, and a concrete reinforcing bar secured in said socket and fixed to said anchor so that said anchor is joined to said bar, said core having a transverse dimension of up to about three times the diameter of the bar, and rib means projecting radially and circumferentially from the core having an effective diameter larger than that of the core providing an axial facing area and an enhanced and an increased bonding surface for the core with a large cross-sectional area facing axially relative of the core and bonded to the concrete;wherein said socket is internally threaded and said bar is externally threaded with matching threads;wherein said axially facing area provided by said rib means is from about 3 to about 8 times the cross-sectional area of the core.