(19)

(11)

EP 0 020 530 A1

(12)

(43) Date of publication: 07.01.1981 Bulletin 1981/01 (21) Application number: 79901405.0 (22) Date of filing: 21.09.1979

(51) International Patent Classification (IPC):  B01J 13/ 22( . ) B01J 35/ 08( . ) B29C 49/ 46( . ) C03B 37/ 022( . ) C03B 37/ 075( . ) C04B 20/ 10( . ) F16L 59/ 08( . ) B01J 20/ 28( . ) B29C 49/ 00( . ) C03B 19/ 10( . ) C03B 37/ 04( . ) C04B 14/ 24( . ) F16L 59/ 065( . ) F24J 2/ 50( . ) (86) International application number: PCT/US1979/000760 (87) International publication number: WO 1980/000695 (17.04.1980 Gazette 1980/08)

(84) Designated Contracting States: FR (30) Priority: 21.09.1978 US 19780944643 20.07.1979 US 19790059296 20.07.1979 US 19790059297 24.08.1979 US 19790069295 (71) Applicant: TOROBIN, Leonard B. Bellevue, WA 98004 (US)	(72) Inventor: TOROBIN, Leonard B. Bellevue, WA 98004 (US)