(19)
(11)
EP 0 388 439 A1
(12)
(43)
Date of publication:
26.09.1990
Bulletin 1990/39
(21)
Application number:
89901815.0
(22)
Date of filing:
13.09.1988
(51)
International Patent Classification (IPC):
B01D
29/
09
( . )
B01D
29/
21
( . )
B01D
29/
62
( . )
B01D
29/
13
( . )
B01D
29/
46
( . )
B01D
29/
66
( . )
(86)
International application number:
PCT/US1988/003139
(87)
International publication number:
WO 1990/002594
(
22.03.1990
Gazette 1990/07)
(84)
Designated Contracting States:
DE FR GB IT
(71)
Applicant:
AUTOTROL CORPORATION
Milwaukee Wisconsin 53209 (US)
(72)
Inventor:
SHELSTAD, Richard
Bayside, WI 53217 (US)
(74)
Representative:
Lippert, Hans, Dipl.-Ing.
Reichel und Reichel Parkstrasse 13
D-60322 Frankfurt
D-60322 Frankfurt (DE)
(54)
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