Global patent index - EP 0875437 A3

EP 0875437 A3 2000-05-17 - Train sensor for warning persons in the track area

Title (en)

Train sensor for warning persons in the track area

Title (de)

Zugsensor zur Warnung von Personen im Gleisbereich

Title (fr)

Capteur de train pour alerter des personnes dans la zone de voie ferrée

Publication

EP 0875437 A3 (DE)

Application

EP 98107174 A

Priority

DE 19717939 A

Abstract (en)

[origin: EP0875437A2] The train sensor uses pressure chambers (21,41) and associated pressure sensors (23,43), for detecting variations in the pressure between the rail track and the track bed (2) upon passage of the train wheels, for supplying a train warning signal to a warning station (15), positioned along the track ahead of the train, via a communication channel (11). The detected pressure variations are evaluated by comparison with a threshold value, with a fault signal supplied to the communication channel when the pressure signal falls below a given level.

IPC 1-7 (main, further and additional classification)

B61L 23/06; B61L 1/04

IPC 8 full level (invention and additional information)

B61L 1/04 (2006.01); B61L 23/06 (2006.01)

CPC (invention and additional information)

B61L 1/04 (2013.01); B61L 23/06 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0875437 A2 19981104; EP 0875437 A3 20000517; DE 19717939 A1 19981126; DE 19717939 C2 19990415

INPADOC legal status

2003-05-14 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20021101

2001-02-28 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: STEIN, HERMANN

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2001-02-28 [RIN1] INVENTOR (CORRECTION)

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- Inventor name: STEIN, HERMANN

2001-01-24 [AKX] PAYMENT OF DESIGNATION FEES

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2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

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- Effective date: 20001018

2000-05-17 [AK] DESIGNATED CONTRACTING STATES:

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- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-05-17 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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1998-11-04 [AK] DESIGNATED CONTRACTING STATES:

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- Designated State(s): AT BE CH DE DK ES FR GB IT LI NL PT SE

1998-11-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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