(19)

(11)

EP 0 065 516 A1

(12)

(43) Date of publication: 01.12.1982 Bulletin 1982/48 (21) Application number: 81901099.0 (22) Date of filing: 06.04.1981

(51) International Patent Classification (IPC):  E02F 3/ 43( . ) E02F 3/ 42( . ) E02F 9/ 26( . ) (86) International application number: PCT/US1981/000440 (87) International publication number: WO 1981/002904 (15.10.1981 Gazette 1981/24)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (30) Priority: 11.04.1980 US 19800139603 (71) Applicant: THE DIGGER METER CORPORATION Des Plaines, IL 60016 (US)	(72) Inventors: BACHMANN, Einar H. Wilmette, IL 60091 (US) INGVARSSON, Kristjan IS-210 Gardabae (IS)