(19)

(11)

EP 0 137 770 A1

(12)

(43) Date of publication: 24.04.1985 Bulletin 1985/17 (21) Application number: 83901028.0 (22) Date of filing: 14.02.1983

(51) International Patent Classification (IPC):  A61F 2/ 26( . ) (86) International application number: PCT/US1983/000196 (87) International publication number: WO 1984/003038 (16.08.1984 Gazette 1984/20)

(84) Designated Contracting States: DE FR GB (71) Applicants: TRICK, Robert E. Racine, WI 53406 (US) FINNEY, Roy P. Tampa, FL 33606 (US) LYNCH, Henry W. Racine, WI 53405 (US)	(72) Inventors: TRICK, Robert E. Racine, WI 53406 (US) FINNEY, Roy P. Tampa, FL 33606 (US) LYNCH, Henry W. Racine, WI 53405 (US) (74) Representative: James, Michael John Gwynne  Wynne-Jones, Lainé & James 22, Rodney Road Cheltenham Gloucestershire GL50 1JJ Cheltenham Gloucestershire GL50 1JJ (GB)