(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)7F16L 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