(19)
(11)
EP 1 049 895 A1
(12)
(43)
Date of publication:
08.11.2000
Bulletin 2000/45
(21)
Application number:
98962696.5
(22)
Date of filing:
21.12.1998
(51)
International Patent Classification (IPC)
7
:
F16L
9/18
,
F01N
7/08
,
F01N
7/10
(86)
International application number:
PCT/NL9800/724
(87)
International publication number:
WO 9937/945
(
29.07.1999
Gazette 1999/30)
(84)
Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE
(30)
Priority:
22.01.1998
NL 1008095
(71)
Applicant:
GRAND PRIX SILENCERS B.V.
NL-6045 JD Roermond (NL)
(72)
Inventor:
GROBBENHAAR, Hermanus, Gerhardus
NL-6075 CD Herkenbosch (NL)
(74)
Representative:
Eveleens Maarse, Pieter et al
Arnold & Siedsma,Advocaten en Octrooigemachtigden,Sweelinckplein 1
2517 GK Den Haag
2517 GK Den Haag (NL)
(54)
MULTIPLE PIPE COMPRISING AN ENVELOPE