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:
Mar. 16, 2021
Filed:
Jan. 13, 2017
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Masashi Asuka, Tokyo, JP;
Tomoaki Takewa, Tokyo, JP;
Wataru Tsujita, Tokyo, JP;
Yoshitsugu Sawa, Tokyo, JP;
Daisuke Koshino, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61L 23/04 (2006.01); E01B 35/00 (2006.01); B61L 1/18 (2006.01); G01R 31/50 (2020.01); B61L 25/02 (2006.01); B61L 3/22 (2006.01);
U.S. Cl.
CPC ...
B61L 23/044 (2013.01); B61L 1/181 (2013.01); B61L 23/04 (2013.01); E01B 35/00 (2013.01); G01R 31/50 (2020.01); B61L 1/185 (2013.01); B61L 1/187 (2013.01); B61L 3/221 (2013.01); B61L 25/025 (2013.01); B61L 25/026 (2013.01);
Abstract
The rail fracture detection device detects a rail fracture in a section provided with the track circuit by determining presence or absence of a rail fracture and determining presence or absence of a train on a rail by using information on whether a relay of the track circuit is activated or deactivated and information on a current value of current flowing in the track circuit.