The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2019
Filed:
Sep. 30, 2016
Applicant:
Alstom Transport Technologies, Saint-Ouen, FR;
Inventors:
Nicholas Nagrodsky, Melbourne, FL (US);
Richard Lawson, Melbourne Beach, FL (US);
Jeffrey Fries, Grain Valley, MO (US);
John Hounschell, Melbourne, FL (US);
James Kiss, Melbourne, FL (US);
Assignee:
ALSTOM TRANSPORT TECHNOLOGIES, Saint-Ouen, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61L 7/06 (2006.01); B61L 5/06 (2006.01); H04B 3/54 (2006.01); B61L 1/18 (2006.01); B61L 23/04 (2006.01); B61L 27/00 (2006.01);
U.S. Cl.
CPC ...
B61L 7/06 (2013.01); B61L 1/188 (2013.01); B61L 5/06 (2013.01); B61L 23/044 (2013.01); B61L 27/0005 (2013.01); H04B 3/542 (2013.01);
Abstract
A wayside communication system for transmitting coded current signals through running rails of a railroad track between wayside control devices. A power line common to the wayside control devices is used as the return path for the current signals. The system features train and broken rail detection. The system allows sending signals long distances since rail to rail current leakage is no longer an issue.