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Current content: 155 519 367 patent documents

This week's update (03/05/2024 12:00 CET):

123 361 new documents added

1 354 331 documents amended

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EP 0984103 A1 20000308 - Railroad spring frog assembly

Title (en)

Railroad spring frog assembly

Title (de)

Federherzstück für Eisenbahn

Title (fr)

Coeur de croisement à ressort pour voie ferrée

Publication

EP 0984103 A1 20000308 (EN)

Application

EP 98630048 A 19980904

Priority

EP 98630048 A 19980904

Abstract (en)

The railroad trackwork spring wing frog assembly is provided with multiple rail-closer subassemblies (70), preferably of the nested and counter-wound compression spring-type, that co-operate with the assembly spring wing rail (50), and that are laterally spaced-apart with respect to each other along the angled rail portion (58) of the frog assembly spring wing rail (50). <IMAGE>

IPC 1-7

E01B 7/14; B61L 11/02

IPC 8 full level

B61L 11/02 (2006.01); E01B 7/14 (2006.01)

CPC (source: EP)

B61L 11/02 (2013.01); E01B 7/14 (2013.01)

Citation (search report)

[X] US 2036198 A 19360407 - COOPER GEORGE M, et al
[DA] US 5544848 A 19960813 - KUHN STEPHEN R [US], et al
[DA] US 4624428 A 19861125 - FRANK EARL E [US]

Designated contracting state (EPC)

AT DE ES FR GB IT

DOCDB simple family (publication)

EP 0984103 A1 20000308

DOCDB simple family (application)

EP 98630048 A 19980904