(19)

(11)

EP 0 045 792 A1

(12)

(43) Date of publication: 17.02.1982 Bulletin 1982/07 (21) Application number: 81900702.0 (22) Date of filing: 11.02.1981

(51) International Patent Classification (IPC):  E01C 19/ 26( . ) (86) International application number: PCT/US1981/000179 (87) International publication number: WO 1981/002316 (20.08.1981 Gazette 1981/20)

(84) Designated Contracting States: DE FR GB NL SE (30) Priority: 11.02.1980 US 19800120640 (71) Applicant: TAVERNIER, Boyd D. Reno, NV 89502 (US)	(72) Inventor: TAVERNIER, Boyd D. Reno, NV 89502 (US)