(19)

(11)

EP 0 447 395 A1

(12)

(43) Date of publication: 25.09.1991 Bulletin 1991/39 (21) Application number: 89900772.0 (22) Date of filing: 09.12.1988

(51) International Patent Classification (IPC):  E03D 9/ 05( . ) E03D 9/ 052( . ) A47K 13/ 30( . ) (86) International application number: PCT/US1988/004387 (87) International publication number: WO 1990/006404 (14.06.1990 Gazette 1990/14)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: HUNNICUTT, Clyde, J., Jr. Phoenix, AZ 85008 (US)	(72) Inventor: HUNNICUTT, Clyde, J., Jr. Phoenix, AZ 85008 (US) (74) Representative: Coxon, Philip, et al  Eric Potter & Clarkson St. Mary's Court St. Mary's Gate Nottingham NG1 1LE Nottingham NG1 1LE (GB)