(19)

(11)

EP 0 229 833 A1

(12)

(43) Date of publication: 29.07.1987 Bulletin 1987/31 (21) Application number: 86904688.0 (22) Date of filing: 15.07.1986

(51) International Patent Classification (IPC):  F15B 15/ 08( . ) (86) International application number: PCT/US1986/001490 (87) International publication number: WO 1987/000590 (29.01.1987 Gazette 1987/03)

(84) Designated Contracting States: DE FR GB IT SE (30) Priority: 16.07.1985 US 19850755709 (71) Applicant: WEYER, Paul P. Enumclaw, WA 98022 (US)	(72) Inventor: WEYER, Paul P. Enumclaw, WA 98022 (US)