(19)

(11)

EP 0 221 141 A1

(12)

(43) Date of publication: 13.05.1987 Bulletin 1987/20 (21) Application number: 86903023.0 (22) Date of filing: 24.04.1986

(51) International Patent Classification (IPC):  B29C 47/ 60( . ) B29C 47/ 40( . ) B29B 7/ 42( . ) B29C 47/ 62( . ) (86) International application number: PCT/US1986/000861 (87) International publication number: WO 1986/006325 (06.11.1986 Gazette 1986/24)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 02.05.1985 US 19850729684 (71) Applicant: DRAY, Robert F. Hamilton, TX 76531 (US)	(72) Inventor: DRAY, Robert F. Hamilton, TX 76531 (US)