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Title: Railroad block/grade crossing warning system

Abstract

A train safety system comprises a cable connected to at least two conducting contacts, an electrical load between said two conducting magnetic contacts, and a DC track circuit associated with railroad tracks wherein the at least two conducting plates can be connected to each of the railroad rails in order to shunt the DC track circuit and alert oncoming trains of fouling of the tracks or crossing ahead.

Inventors:
Issue Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1632538
Patent Number(s):
10556604
Application Number:
15/485,411
Assignee:
Fermi Research Alliance, LLC (Batavia, IL)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B61 - RAILWAYS B61L - GUIDING RAILWAY TRAFFIC
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/12/2017
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Plant, Derek L. Railroad block/grade crossing warning system. United States: N. p., 2020. Web.
Plant, Derek L. Railroad block/grade crossing warning system. United States.
Plant, Derek L. Tue . "Railroad block/grade crossing warning system". United States. https://www.osti.gov/servlets/purl/1632538.
@article{osti_1632538,
title = {Railroad block/grade crossing warning system},
author = {Plant, Derek L.},
abstractNote = {A train safety system comprises a cable connected to at least two conducting contacts, an electrical load between said two conducting magnetic contacts, and a DC track circuit associated with railroad tracks wherein the at least two conducting plates can be connected to each of the railroad rails in order to shunt the DC track circuit and alert oncoming trains of fouling of the tracks or crossing ahead.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {2}
}

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Works referenced in this record:

Portable beacons
patent, April 2002


Railway track circuits
patent, November 1995


Broken rail detection system and method
patent, August 2000


Positive train control system and apparatus therefor
patent, September 2016


Method and system for proximity detection and location determination
patent, April 2001


Positive signal comparator and method
patent, August 2000


Processing system for grade crossing warning
patent, April 1986


Method and system for automatically activating a warning device on a train
patent, August 2003


Train detection circuit
patent, May 1995


Intelligent rail crossing control system and train tracking system
patent, January 2001