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(11)

EP 0 327 600 A1

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(43) Date of publication: 16.08.1989 Bulletin 1989/33 (21) Application number: 88902069.0 (22) Date of filing: 26.08.1987

(51) International Patent Classification (IPC):  D02G 3/ 04( . ) D01G 1/ 00( . ) D01G 13/ 00( . ) D02G 3/ 44( . ) B29B 15/ 08( . ) D01G 1/ 08( . ) D02G 3/ 22( . ) (86) International application number: PCT/US1987/002156 (87) International publication number: WO 1989/001999 (09.03.1989 Gazette 1989/06)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: HELTRA INCORPORATED Jim Thorpe, PA 18229 (US)	(72) Inventors: TRADEWELL, Kirk, Leon Quakertown, PA 18229 (US) TRADEWELL, George, Edward White Haven, PA 18229 (US) (74) Representative: Newby, John Ross, et al  J.Y. & G.W. Johnson Furnival House 14/18 High Holborn London WC1V 6DE London WC1V 6DE (GB)