(19)

(11)

EP 0 114 861 A1

(12)

(43) Date of publication: 08.08.1984 Bulletin 1984/32 (21) Application number: 83902452.0 (22) Date of filing: 02.08.1983

(51) International Patent Classification (IPC):  B63B 35/ 81( . ) (86) International application number: PCT/NL1983/000030 (87) International publication number: WO 1984/000500 (16.02.1984 Gazette 1984/05)

(84) Designated Contracting States: AT BE CH DE FR GB LI NL SE (30) Priority: 03.08.1982 NL 19820003090 07.04.1983 NL 19830001233 (71) Applicant: LENTEN, Hendrik NL-8604 BB Sneek (NL)	(72) Inventor: LENTEN, Hendrik NL-8604 BB Sneek (NL) (74) Representative: Urbanus, Henricus Maria, Ir., et al  c/o Vereenigde Octrooibureaux Nieuwe Parklaan 107 NL-2587 BP 's-Gravenhage NL-2587 BP 's-Gravenhage (NL)