(19)

(11)

EP 0 466 767 A1

(12)

(43) Date of publication: 22.01.1992 Bulletin 1992/04 (21) Application number: 90905819.0 (22) Date of filing: 16.03.1990

(51) International Patent Classification (IPC):  A61C 19/ 04( . ) (86) International application number: PCT/US1990/001306 (87) International publication number: WO 1990/011046 (04.10.1990 Gazette 1990/23)

(84) Designated Contracting States: CH DE FR GB IT LI SE (30) Priority: 17.03.1989 US 19890324813 (71) Applicants: LOW, Samuel B Gainesville, FL 32601 (US) HIRSCHFELD, John W Gainesville, FL 32609 (US) GIBBS, Charles H Gainesville, FL 32608 (US) LEE, James G Gainesville, FL 32601 (US)	(72) Inventors: LOW, Samuel B Gainesville, FL 32601 (US) HIRSCHFELD, John W Gainesville, FL 32609 (US) GIBBS, Charles H Gainesville, FL 32608 (US) LEE, James G Gainesville, FL 32601 (US) (74) Representative: Weydert, Robert  OFFICE DENNEMEYER S.à.r.l. 55, rue des Bruyères L-1274 Howald L-1274 Howald (LU)