(19)

(11)

EP 0 125 295 A1

(12)

(43) Date of publication: 21.11.1984 Bulletin 1984/47 (21) Application number: 83903851.0 (22) Date of filing: 02.11.1983

(51) International Patent Classification (IPC):  A61F 6/ 08( . ) (86) International application number: PCT/US1983/001699 (87) International publication number: WO 1984/001901 (24.05.1984 Gazette 1984/13)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 12.11.1982 US 19820441154 30.08.1983 US 19830527850 (71) Applicant: PLACE, Virgil A. Half Moon Bay, CA 94019 (US)	(72) Inventor: PLACE, Virgil A. Half Moon Bay, CA 94019 (US) (74) Representative: Haggart, John Pawson  Page, White & Farrer 5 Plough Place New Fetter Lane London EC4A 1HY London EC4A 1HY (GB)