Patent · US Active

Rail-fastening system

US9290888B2 · kind B2 · utility

1Cited by

10References

9Claims

0Family size

Assignee

SCHWIHAG AG · CH

Inventors

Stefan Lienhard · Konstanz, DE
Daniel Walter · Allensbach, DE
Erik Danneberg · Zürich, CH
Roland Buda · Bodensee, DE

Key dates

Filing date	Jun 11, 2012
Grant date	Mar 22, 2016
Priority date	—
Expiry date	Jun 11, 2032

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE01B9/681
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Rail-fastening system for the non-positive resilient fastening of a rail (2) on a sleeper (1) of a railway track installation, comprising at least one angle guide plate (5), which can be fixed to the sleeper (1) with at least one screw (4), and at least one clamp (3), characterized in that the bending radii of the clamp arms (3a, 3b) of the clamp (3) preferably lie in the range from 18-70 mm, wherein the ratio of mutually adjacent bending radii within each clamping arm is ≦1.9 and the ratio of the greatest to the smallest bending radius thereof is ≦3.8, and in that the ratio of weight to width of the angle guide plate is <1.3 g/mm, preferably about 1.25 g/mm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.