(19)

(11)

EP 0 331 706 A1

(12)

(43) Date of publication: 13.09.1989 Bulletin 1989/37 (21) Application number: 88907977.0 (22) Date of filing: 15.08.1988

(51) International Patent Classification (IPC):  B41J 2/ 01( . ) B41J 25/ 00( . ) F16F 15/ 073( . ) B23Q 1/ 36( . ) F16F 1/ 18( . ) H04N 1/ 192( . ) (86) International application number: PCT/US1988/002799 (87) International publication number: WO 1989/002039 (09.03.1989 Gazette 1989/06)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 28.08.1987 US 19870090380 (71) Applicant: SPECTRA, INC. Hanover, NH 03755 (US)	(72) Inventors: PILLSBURY, Timothy, A. West Lebanon, NH 03784 (US) FISCHBECK, Kenneth, H. Hanover, NH 03755 (US) (74) Representative: Jackson, Peter Arthur, et al  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)