(19)
(11) EP 1 278 625 A2

(12)

(88) Date of publication A3:
28.02.2002

(43) Date of publication:
29.01.2003 Bulletin 2003/05

(21) Application number: 01932726.1

(22) Date of filing: 30.04.2001
(51) International Patent Classification (IPC)7: B29C 47/50, B27N 3/28
(86) International application number:
PCT/US0113/745
(87) International publication number:
WO 0108/3195 (08.11.2001 Gazette 2001/45)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 03.05.2000 US 201686 P

(71) Applicant: Davis-Standard Corporation
Pawcatuck, CT 06379 (US)

(72) Inventors:
  • MURDOCK, David, E.
    Westerly, RI 02891 (US)
  • SNEAD, Dale, K.
    Yardley, PA 19067 (US)
  • DARDENNE, Darrell S.
    Jacksonville, FL 32256 (US)
  • MILLS, Ian, W.
    Westerly, RI 02891 (US)

(74) Representative: Spott, Gottfried, Dr. 
Spott & WeinmillerPatentanwälteSendlinger-Tor-Platz 11
80336 München
80336 München (DE)

   


(54) TWIN SCREW EXTRUDERS FOR PROCESSING WOOD FIBER AND PROCESS FOR SAME