EP 4222038 A1 20230809 - RAILWAY SWITCH DEVICE FOR MOVING RAILROAD SWITCH POINTS
Title (en)
RAILWAY SWITCH DEVICE FOR MOVING RAILROAD SWITCH POINTS
Title (de)
EISENBAHNWEICHENVORRICHTUNG ZUM BEWEGEN VON EISENBAHNWEICHENPUNKTEN
Title (fr)
DISPOSITIF D'AIGUILLAGE DE CHEMIN DE FER PERMETTANT DE DÉPLACER DES POINTS D'AIGUILLAGE DE VOIE FERRÉE
Publication
Application
Priority
- US 202017064593 A 20201006
- US 2021053746 W 20211006
Abstract (en)
[origin: WO2022076540A1] A railroad switch device for moving railroad switch points. The device includes a hydraulic unit having a hydraulic manifold coupled to a hydraulic pump integrated with an electric motor via a pressure pipe, where the hydraulic manifold is also coupled to the hydraulic pump via a hydraulic oil reservoir and a return pipe, and the hydraulic manifold is coupled to a hydraulic double-rod cylinder to provide forward movement and reverse movement of a point rod. Also included is a mechanical target to automatically indicate the position of a point rod, and a plurality of spring units to produce a continuous thrust force for holding the railroad switch points closed in forward position and reverse position, wherein the plurality of spring units controls the target rotation to 90 degrees.
IPC 8 full level
B61L 5/04 (2006.01); B61L 5/10 (2006.01); B61L 5/16 (2006.01); B61L 7/04 (2006.01); E01B 7/18 (2006.01)
CPC (source: EP)
B61L 5/04 (2013.01); B61L 5/10 (2013.01); B61L 5/16 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022076540 A1 20220414; CA 3197679 A1 20220414; CL 2023001000 A1 20230908; EP 4222038 A1 20230809; EP 4222038 A4 20240327; MX 2023004067 A 20230503
DOCDB simple family (application)
US 2021053746 W 20211006; CA 3197679 A 20211006; CL 2023001000 A 20230405; EP 21878443 A 20211006; MX 2023004067 A 20211006