US 7,744,010 B2 · Rail anchor isolator for railroad tie

Abstract

The present invention provides an isolator particularly adapted for use with a rail anchor utilized in an application where railroad rail is installed on concrete ties. The isolator protects the concrete tie from contact with the rail anchor caused by longitudinal movement of the rail due to train acceleration of deceleration or expansion and contraction due to temperature changes. In one embodiment, the isolator is comprised of a structural plastic material and includes a front face section and a rear face section. The front face section and rear face section each comprise a generally rectangular structure, having a top edge, bottom edge, and side edges. Top and bottom sections join the front face section and rear face section and form part of the isolator. The rail anchor also comprises a support section that extends from an intersection of the rear face section with the bottom section. The rail isolator is designed to be embedded in a concrete railroad tie.

Claims12

Dependent claims

An isolator for use with a concrete railroad tie,

the isolator comprising:
a structure including a front face section and a rear face section,
the front face section comprising a generally rectangular structure, having a top edge, bottom edge and two side edges,
the rear face section comprising a generally rectangular structure, having a top edge, bottom edge and two side edges,
a bottom section that joins the front face section and the rear face section,
and a top section,
and a support section that extends outwardly and downwardly from an intersection of the rear face section with the bottom section,
wherein the support section extends inwardly beyond the rear face section,
and wherein the support section extends downwardly beyond the bottom section.

6 more elements

Dependencies are inferred from the claim text.

Rail anchor isolator for railroad tie

Life of this patent

Rail anchor isolator for railroad tie

Life of this patent

Abstract

Claims12