EP 0192983 A3 19880127 - MAT OF ELASTIC MATERIAL
Title (en)
MAT OF ELASTIC MATERIAL
Publication
Application
Priority
DE 3506505 A 19850223
Abstract (en)
[origin: ES296770U] A road bed for railway rails comprises a ballast underlayment mat in the form of a body of elastomeric material. The mat has, at its bottom, prominent projecting parts of the elastomeric material and is covered by stone ballast. At least one fiber fleece layer on the top of the mat limits penetration of the stone ballast into the elastomeric material.
IPC 1-7
IPC 8 full level
E01B 1/00 (2006.01)
CPC (source: EP US)
E01B 1/001 (2013.01 - EP US); E01B 1/005 (2013.01 - EP US); E01B 2204/01 (2013.01 - EP US); Y10T 442/679 (2015.04 - EP US)
Citation (search report)
- [AP] EP 0167844 A2 19860115 - CLOUTH GUMMIWERKE AG [DE]
- [A] US 2867384 A 19590106 - TOULMIN JR HARRY A
- [A] US 4265398 A 19810505 - LUEBKE ROBERT W
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0192983 A2 19860903; EP 0192983 A3 19880127; AU 5142185 A 19860828; AU 577433 B2 19880922; DE 3506505 A1 19860828; DE 3506505 C2 19930902; ES 296770 U 19880116; ES 296770 Y 19881001; GR 860108 B 19860530; IN 164039 B 19881231; JP S61196001 A 19860830; US 4720043 A 19880119
DOCDB simple family (application)
EP 86101128 A 19860129; AU 5142185 A 19851218; DE 3506505 A 19850223; ES 296770 U 19851217; GR 860100108 A 19860116; IN 1042DE1985 A 19851210; JP 3753986 A 19860224; US 83251386 A 19860221