(19)

(11)

EP 0 832 387 A1

(12)

(43) Date of publication: 01.04.1998 Bulletin 1998/14 (21) Application number: 96923547.0 (22) Date of filing: 03.07.1996

(51) International Patent Classification (IPC):  F16K 17/ 06( . ) G05D 16/ 06( . ) (86) International application number: PCT/US1996/011101 (87) International publication number: WO 1997/002447 (23.01.1997 Gazette 1997/05)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 03.07.1995 US 19950000856P (71) Applicant: Eidsmore, Paul George Santa Cruz, CA 95065 (US)	(72) Inventor: Eidsmore, Paul George Santa Cruz, CA 95065 (US) (74) Representative: Purvis, William Michael Cameron  D. Young & Co., 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)