(19)
(11) EP 0 971 782 A1

(12)

(43) Date of publication:
19.01.2000 Bulletin 2000/03

(21) Application number: 98908510.5

(22) Date of filing: 06.02.1998
(51) International Patent Classification (IPC)7B01D 46/24, B01D 46/04
(86) International application number:
PCT/US9802/550
(87) International publication number:
WO 9834/713 (13.08.1998 Gazette 1998/32)
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 12.02.1997 US 799430

(71) Applicant: UNITED AIR SPECIALISTS, INC
Cincinnati, OH 45242 (US)

(72) Inventors:
  • LUNDBERG, Mark, R.
    Amelia, OH 45102 (US)
  • LEFLER, Kevin, D.
    New Richmond, OH 45157 (US)

(74) Representative: Sulzbach, Werner, Dipl.-Chem. Dr. 
Prinz & Partner GbRManzingerweg 7
81241 München
81241 München (DE)

   


(54) REVERSE PULSE CLEANING ENHANCEMENT FOR CARTRIDGE FILTER AIR FILTRATION SYSTEM