US 2019/0345675 A1 · VIBRATION DAMPENING RAILWAY TIE BOOT

Abstract

A vibration dampening boot for railway tie blocks and a method of manufacturing railway tie block assemblies. The boot includes a bottom wall with resilient tie block contact structures disposed at different heights for initial tie block support and variable vibration dampening. The upper portion of the boot terminates in a removable wall connected to the side walls of the boot by a relatively thin tear strip to enable direct pouring of cast material, such as concrete or epoxy, into the boot for casting the tie block, with the wall removable after installation of the tie block assembly into a railway bed. In this manner, the boot may be used with pre-cast tie blocks as well as accommodate direct casting of the tie blocks within the boot to form a tie block assembly.

Claims26

Dependent claims

A railway tie block boot, comprising:

a bottom wall made of a resiliently deformable material;
a plurality of side walls extending upwardly from the bottom wall and terminating in an upper lip extending around a periphery defined by the side walls, such that the bottom wall and the plurality of side walls cooperate to form a generally rectangular box-like structure with an open upper end;
and
a removable wall extending upwardly from the upper lip and extending around the periphery of the side walls, the removable wall tapering inwardly from the upper lip toward the open upper end.

1 more element

Dependencies are inferred from the claim text.

Vibration dampening railway tie boot

Life of this patent

Vibration dampening railway tie boot

Life of this patent

Abstract

Claims26