(19)
(11)
EP 0 993 525 A1
(12)
(43)
Date of publication:
19.04.2000
Bulletin 2000/16
(21)
Application number:
98931140.2
(22)
Date of filing:
25.06.1998
(51)
International Patent Classification (IPC)
7
:
E01B
19/00
,
E01B
9/68
,
E01B
1/00
(86)
International application number:
PCT/NL9800/368
(87)
International publication number:
WO 9901/617
(
14.01.1999
Gazette 1999/02)
(84)
Designated Contracting States:
AT BE DE ES FR GB IT NL
(30)
Priority:
04.07.1997
NL 1006483
(71)
Applicant:
NEDERLANDSE ORGANISATIE VOORTOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
2628 VK Delft (NL)
(72)
Inventor:
JANSSENS, Marcel, Henk, André
NL-2614 ED Delft (NL)
(74)
Representative:
Hoorweg, Petrus Nicolaas et al
Arnold & Siedsma,Advocaten en Octrooigemachtigden,Sweelinckplein 1
2517 GK Den Haag
2517 GK Den Haag (NL)
(54)
RAIL TRACK HAVING ENHANCED ABSORPTION OF VIBRATION AND SOUND