(19)
(11) EP 0 958 429 A1

(12)

(43) Date of publication:
24.11.1999 Bulletin 1999/47

(21) Application number: 97906396.0

(22) Date of filing: 27.02.1997
(51) International Patent Classification (IPC): 
D21D 5/ 00( . )
(86) International application number:
PCT/SE1997/000335
(87) International publication number:
WO 1997/032078 (04.09.1997 Gazette 1997/38)
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

(30) Priority: 29.02.1996 US 19960610118

(71) Applicant: Alfa Laval AB
147 80 Tumba (SE)

(72) Inventors:
  • SMITH, Ryan, M.
    Lawrenceville, GA 30243 (US)
  • MOSS, Charles
    Snellville, GA 30278 (US)
  • FJÄLLSTRÖM, Roland
    Lawrenceville, GA 30245 (US)

(74) Representative: Lerwill, John, et al 
A.A. Thornton & Co. 235 High Holborn
London, WC1V 7LE
London, WC1V 7LE (GB)

   


(54) PROCESS AND APPARATUS FOR CONTROLLING THE PURIFICATION AND YIELD OF FIBERS FROM A FIBER SUSPENSION