(19)
(11) EP 0 038 857 A1

(12)

(43) Date of publication:
04.11.1981 Bulletin 1981/44

(21) Application number: 81900032.0

(22) Date of filing: 03.11.1980
(51) International Patent Classification (IPC): 
B01D 21/ 26( . )
F04F 1/ 10( . )
(86) International application number:
PCT/US1980/001466
(87) International publication number:
WO 1981/001246 (14.05.1981 Gazette 1981/12)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 01.11.1979 WO 1979US00931

(71) Applicant: CATERPILLAR TRACTOR CO.
Peoria, Illinois 61629 (US)

(72) Inventor:
  • WITZENBURG, Marion J.
    Peoria, IL 61614 (US)

(74) Representative: Wagner, Karl H. 
WAGNER & GEYER Patentanwälte Gewuerzmuehlstrasse 5 Postfach 246
D-8000 München 22
D-8000 München 22 (DE)

   


(54) PUMPLESS FLOW SYSTEM FOR A CORROSIVE LIQUID