(19)
(11) EP 0 877 858 A1

(12)

(43) Date of publication:
18.11.1998 Bulletin 1998/47

(21) Application number: 97902766.0

(22) Date of filing: 29.01.1997
(51) International Patent Classification (IPC): 
F02B 71/ 00( . )
F02B 71/ 06( . )
F02B 3/ 06( . )
F02B 71/ 04( . )
F02B 75/ 04( . )
(86) International application number:
PCT/NO1997/000023
(87) International publication number:
WO 1997/028363 (07.08.1997 Gazette 1997/34)
(84) Designated Contracting States:
CH DE DK FI GB LI SE

(30) Priority: 30.01.1996 NO 19960000402

(60) Divisional application:
99113550.0 / 0947680

(71) Applicant: KVAERNER ASA
1324 Lysaker (NO)

(72) Inventors:
  • FORDE, Magnar, Jarle
    N-7562 Hundhamaren (NO)
  • KVAMSDAL, Rolf
    N-7041 Trondheim (NO)

(74) Representative: HOFFMANN - EITLE 
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE)

   


(54) AN IMPROVEMENT IN FREE-PISTON DEVICES