(19)

(11)

EP 0 108 140 A1

(12)

(43) Date of publication: 16.05.1984 Bulletin 1984/20 (21) Application number: 83902022.0 (22) Date of filing: 06.05.1983

(51) International Patent Classification (IPC):  B01D 53/ 04( . ) B01D 53/ 053( . ) (86) International application number: PCT/US1983/000703 (87) International publication number: WO 1983/003983 (24.11.1983 Gazette 1983/27)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 07.05.1982 US 19820376188 (71) Applicant: MARATHON MEDICAL EQUIPMENT CORPORATION Denver, CO 80216 (US)	(72) Inventor: SMITH, Robert B. Loveland, CO 80537 (US)