ClassID:

68547

B61L1/187 - CPC Classification

Classification description:

Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals; Railway track circuits; Details Use of alternating current

Recent Application in this class:
#1
20250229814
2025-07-17

BROKEN RAIL DETECTOR

#2
20240278815
2024-08-22

BROKEN RAIL DETECTOR

#3
20240149931
2024-05-09

RAILWAY DETECTION SYSTEM, RAILWAY INFRASTRUCTURE AND METHOD FOR DETECTING THE PRESENCE OF A RAILWAY VEHICLE

#4
20220234632
2022-07-28

BROKEN RAIL DETECTOR

#5
20220111878
2022-04-14

DEVICE, SYSTEM AND METHOD FOR MONITORING CONDITIONS ON A RAILWAY TRACK

#6
20210139059
2021-05-13

Track circuit with continued distance monitoring and broken rail protection

#7
20210107541
2021-04-15

Broken rail detector

#8
20210053598
2021-02-25

Grade crossing control system

#9
20190193762
2019-06-27

System and method for detecting a break in a railway track

#10
20190047600
2019-02-14

Rail fracture detection device

#11
20180281830
2018-10-04

System and method for detecting the presence of a train on a railway track

#12
20180257685
2018-09-13

Railroad track circuit for determining the occupancy status of a portion of a railroad

#13
20160176420
2016-06-23

Track circuit power supply vital monitor

#14
20160152251
2016-06-02

Track circuit mechanical joint integrity checker

#15
20160096540
2016-04-07

Railroad track circuits

#16
20140263858
2014-09-18

Wireless and/or wired frequency programmable termination shunts

#17
20140014783
2014-01-16

Device for detecting the occupied or available status of a track segment and method for operating such a device

#18
20130334373
2013-12-19

Method for detecting the extent of clear, intact track near a railway vehicle

#19
20110315828
2011-12-29

Devices for detecting the occupied state or the free state of a track section and method for operating such devices

#20
20110309205
2011-12-22

Foreign track current suppression system and method

#21
20110251809
2011-10-13

INDUCTIVE LOOP PRESENCE DETECTOR

#22
20110174934
2011-07-21

Train detector and train security device for dual gauge track circuit

#23
20110147535
2011-06-23

Track circuit

#24
20100025545
2010-02-04

Systems and methods for determining whether a transportation track is occupied