(19)

(11)

EP 0 022 778 A1

(12)

(43) Date of publication: 28.01.1981 Bulletin 1981/04 (21) Application number: 79901054.0 (22) Date of filing: 24.01.1979

(51) International Patent Classification (IPC):  B29B 15/ 00( . ) B29C 43/ 02( . ) B29C 61/ 00( . ) F16J 15/ 32( . ) B29C 43/ 00( . ) B29C 43/ 18( . ) B29D 99/ 00( . ) (86) International application number: PCT/US1979/000035 (87) International publication number: WO 1980/001598 (07.08.1980 Gazette 1980/18)

(84) Designated Contracting States: DE FR GB (71) Applicant: FEDERAL-MOGUL CORPORATION Detroit, MI 48235 (US)	(72) Inventor: BUTLER, John D. Van Wert, OH 45891 (US) (74) Representative: Wisher, Michael Frederick, et al  Urquhart-Dykes & Lord 47 Marylebone Lane London W1M 6DL London W1M 6DL (GB)