(19)

(11)

EP 0 543 815 A1

(12)

(43) Date of publication: 02.06.1993 Bulletin 1993/22 (21) Application number: 91904356.0 (22) Date of filing: 01.02.1991

(51) International Patent Classification (IPC):  B25B 13/ 44( . ) B25B 21/ 00( . ) B25B 13/ 46( . ) (86) International application number: PCT/US1991/000709 (87) International publication number: WO 1992/003261 (05.03.1992 Gazette 1992/06)

(84) Designated Contracting States: DE ES FR GB IT SE (30) Priority: 14.08.1990 US 19900567290 08.01.1991 US 19910638828 (71) Applicant: FOSSELLA, Gregory Osterville, MA 02655 (US)	(72) Inventor: FOSSELLA, Gregory Osterville, MA 02655 (US) (74) Representative: Woodward, John Calvin, et al  Venner Shipley & Co. 20 Little Britain London EC1A 7DH London EC1A 7DH (GB)