Railroad block/grade crossing warning system

Patent metadata

Field	Value
Publication number	US-10556604-B2
Application number	US-201715485411-A
Country	US
Kind code	B2
Filing date	Apr 12, 2017
Priority date	Apr 12, 2016
Publication date	Feb 11, 2020
Grant date	Feb 11, 2020

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.

First claim

What is claimed is:

1. A system comprising:
at least two conducting contacts;
a cable connected to said at least two conducting contacts;
an electrical load associated with said cable between said two conducting contacts,
wherein said at least two conducting contacts can be connected to railroad tracks in order to shunt a track signal circuit associated with said railroad tracks; and
a self-contained capsule configured to house said at least two conducting contacts, said cable, and said electrical load associated with said cable.

2. The system of claim 1 further comprising:
a magnet associated with each of said at least two conducting contacts configured to ensure an operable connection between said railroad tracks and said conducting contacts.

3. The system of claim 2 further comprising:
a magnetic keeper formed in said self-contained capsule, said magnetic keeper configured to contain a magnetic field created by said magnet associated with each of said at least two conducting contacts.

4. The system of claim 1 wherein said self-contained capsule further comprises:
a tube configured to house said cable, said two conducting contacts, and said electrical load.

5. The system of claim 4 wherein said self-contained capsule further comprises:
a first weatherproof end cap enclosing a first end of said tube; and
a second weatherproof end cap enclosing a second end of said tube.

6. The system of 4 further comprising:
a power source configured to supply power to a strobe light formed on an exterior of said tube.

7. The system of claim 1 further comprising:
a dye packet affixed to at least one of said at least two conducting contacts.

8. The system of claim 1 wherein said track signal circuit will turn at least one block signal at an obstructed railroad block to a red condition.

9. The system of 1 wherein said track signal circuit is associated with a positive train control system.

10. An obstruction warning apparatus comprising:
at least two conducting contacts;
a cable connected to said at least two conducting contacts;
an electrical load associated with said cable between said two conducting contacts
wherein said at least two conducting contacts can be connected to railroad tracks in order to complete a DC track signal circuit; and
a self-contained capsule configured to house said at least two conducting contacts, said cable, and said electrical load associated with said cable.

11. The obstruction warning apparatus of claim 10 further comprising:
a magnet associated with each of said at least two conducting contacts configured to ensure an operable connection between said railroad tracks and said conducting contacts; and
a magnetic keeper formed in said self-contained capsule, said magnetic keeper configured to contain a magnetic field created by said magnet associated with each of said at least two conducting contacts.

12. The obstruction warning apparatus of claim 10 wherein said self-contained capsule further comprises:
a tube configured to house said cable, said two conducting contacts, and said electrical load.

13. The obstruction warning apparatus of claim 12 wherein said self-contained capsule further comprises:
a first weatherproof end cap enclosing a first end of said tube; and
a second weatherproof end cap enclosing a second end of said tube.

14. The obstruction warning apparatus of claim 13 further comprising:
a power source housed in said self-contained capsule, configured to supply power to a strobe light formed on an exterior of said tube.

15. The obstruction warning apparatus of claim 10 further comprising:
a dye packet affixed to at least one of said at least two conducting contacts.

16. The obstruction warning apparatus of claim 10 wherein said DC track signal circuit is associated with a positive train control system.

17. A method for alerting trains to hazards comprising:
housing at least two conducting contacts, a cable, and an electrical load associated with said cable in a self-contained capsule;
connecting at least two conducting contacts to train tracks with said cable; and
emulating the presence of a train by completing a DC block signaling track circuit wherein said cable serves as said electrical load between said two conducting contacts.

18. The method of claim 17 wherein connecting at least two conducting contacts to railroad tracks with a cable further comprises:
providing a magnet associated with each of said at least two conducting contacts to ensure operable connection between said railroad tracks and said conducting contacts.

19. The method of claim 18 further comprising:
containing a magnetic field associated with said magnet with a magnetic keeper formed in said self-contained capsule.

20. The method of 17 wherein said DC block signaling track circuit is associated with a positive train control system.

Assignees

• Fermi Res Alliance Llc

Inventors

• Plant Derek L

Classifications

• B61L1/185 Primary

  Use of direct current · CPC title