Patent ID: 8302878

Claim:
A rail, comprising: a rail body having a first end having a first rail end surface and a second end having a second rail end surface, the rail body having a head portion, a web portion, and a base portion, the first rail end surface having a height and a length, the height of the first rail end surface extending from a top end of the rail body to a bottom end of the rail body, the first rail end surface defined by the head portion, web portion, and base portion is generally Z-shaped having transverse portions extending in a lateral transverse direction relative to a longitudinal axis of the rail body and an angled portion extending between the respective transverse portions, the transverse portions are spaced from each other in the transverse direction and in a direction that extends parallel to the longitudinal axis of the rail body, wherein the first rail end surface at the head portion of the rail body defines a profile that extends the entire length of the first rail end surface and extends from a top surface of the top end of the rail body towards the bottom end of the rail body, the profile being recessed relative to a portion of the first end surface corresponding to the web portion of the rail body.