(19)
(11)
EP 1 504 193 A1
(12)
(43)
Date of publication:
09.02.2005
Bulletin 2005/06
(21)
Application number:
03719588.0
(22)
Date of filing:
04.04.2003
(51)
International Patent Classification (IPC)
7
:
F04F
9/08
(86)
International application number:
PCT/US2003/010373
(87)
International publication number:
WO 2003/093679
(
13.11.2003
Gazette 2003/46)
(84)
Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK
(30)
Priority:
29.04.2002
US 134540
(71)
Applicant:
Varian, Inc.
Palo Alto, CA 94304 (US)
(72)
Inventor:
HABLANIAN, Marsbed
Wellesley, MA 02481 (US)
(74)
Representative:
Foster, Mark Charles et al
Mathisen & MacaraThe Coach House6-8 Swakeley's Road
Ickenham, Uxbridge Middlesex UB10 8BZ
Ickenham, Uxbridge Middlesex UB10 8BZ (GB)
(54)
METHODS AND APPARATUS FOR CONTROLLING POWER IN VAPOR JET VACUUM PUMPS