(19)

(11)

EP 0 632 736 A1

(12)

(43) Date of publication: 11.01.1995 Bulletin 1995/02 (21) Application number: 92918936.0 (22) Date of filing: 10.09.1992

(51) International Patent Classification (IPC):  A62B 17/ 04( . ) (86) International application number: PCT/GB1992/001656 (87) International publication number: WO 1994/019055 (01.09.1994 Gazette 1994/20)

(84) Designated Contracting States: DE ES FR GB GR IE IT SE (30) Priority: 12.09.1991 GB 19910019441 (71) Applicants: RICHARDS, Brian, John Billinghurst, Sussex RH14 9BB (GB) STEWART, John, Stewart, Simpson Wigan WN8 7EA (GB)	(72) Inventors: RICHARDS, Brian, John Billinghurst, Sussex RH14 9BB (GB) STEWART, John, Stewart, Simpson Wigan WN8 7EA (GB) (74) Representative: Thomson, Paul Anthony, et al  Potts, Kerr & Co. 15, Hamilton Square Birkenhead Merseyside L41 6BR Birkenhead Merseyside L41 6BR (GB)