Patent ID: 6978595

Claim:
A chain link for use in a cable carrier chain, comprising; (1) laterally spaced first and second side plates, each of the plates having a first end and an opposite second end; (2) first and second undercut pins disposed on outer surfaces of the first ends of the first and second side plates; (3) first and second round apertures formed in the second ends of the first and second side plates, respectively; (4) a hinged cover lid disposed transversely between the first and second side plates; and (5) a bottom support plate transversely connecting the first and second side plates to one another; wherein each of the first and second undercut pins comprises a cylindrical shaft, an annular head, and a flat undercut-portion; further wherein each of the first and second round apertures is configured to receive an undercut pin which is identical in configuration and dimension to the first or second undercut pin; each of the apertures comprising an inner pin-retaining wall having a configuration complementary to and slightly oversized relative to the undercut pin such that the pin is slidably retained within said aperture; the retaining wall comprising: a flat first retaining-surface for slidable engagement with the undercut-portion of the pin, an annular second retaining-surface for slidable engagement with the shaft of the pin, and an annular third retaining-surface for slidable engagement with the head of the pin; and further wherein the bottom support plate has formed on a bottom surface thereof a plurality of parallel ribs disposed longitudinally along said bottom surface.