EP 1710440 A3 20080206 - Vacuum pumping with energy limitation
Title (en)
Vacuum pumping with energy limitation
Title (de)
Vakuumpump mit einer Energiebeschränkung
Title (fr)
Pompage à vide avec limitation d'énergie
Publication
Application
Priority
FR 0503352 A 20050405
Abstract (en)
[origin: EP1710440A2] The device has a motor (1) driving a ROOTS type mechanical dry pump (2) with four-stages (5-8) comprising suction sides (5c-8c) and outlets (5d-8d). Inter-staged pipelines (9-11) connect the outlets (5d-7d) to the sides (6c-8c), respectively. Bypass lines (12, 13) are arranged between the side (5c) and the pipeline (9) and between the pipelines (9, 10), respectively. Bypass lines (14, 15) are arranged between the pipelines (10, 11) and between the pipeline (11) and the outlet (8d), respectively. Valves (16-19) are inserted in the pipeline (9, 11) and in the bypass lines (13, 15). An independent claim is also included for a method for vacuum pumping by a multi-staged mechanical dry pump.
IPC 8 full level
F04C 23/00 (2006.01); F04C 18/12 (2006.01); F04C 28/02 (2006.01); F04C 28/08 (2006.01); F04C 28/10 (2006.01)
CPC (source: EP US)
F04C 23/001 (2013.01 - EP US); F04C 25/02 (2013.01 - EP US); F04C 28/02 (2013.01 - EP US); F04C 28/08 (2013.01 - EP US); F04C 28/10 (2013.01 - EP US); F04C 18/126 (2013.01 - EP US); F04C 2220/30 (2013.01 - EP US); F04C 2270/05 (2013.01 - EP US); F04C 2270/07 (2013.01 - EP US); F04C 2270/58 (2013.01 - EP US)
Citation (search report)
- [XY] US 2004028532 A1 20040212 - BEYER CHRISTIAN [DE], et al
- [XA] EP 0730093 A1 19960904 - IWATA AIR COMPRESSOR MFG [JP]
- [A] US 6196810 B1 20010306 - TANIGUCHI HIROYA [JP], et al
- [A] DE 10308420 A1 20040909 - LEYBOLD VAKUUM GMBH [DE]
- [A] US 2004136835 A1 20040715 - BEZ ECKHARD [US], et al
- [Y] GB 738377 A 19551012 - SYNTRON CO
- [A] US 5039280 A 19910813 - SAULGEOT CLAUDE [FR], et al
- [A] EP 1314890 A2 20030528 - TOYOTA JIDOSHOKKI KK [JP]
- [XY] PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1710440 A2 20061011; EP 1710440 A3 20080206; CN 100559028 C 20091111; CN 1847660 A 20061018; FR 2883934 A1 20061006; FR 2883934 B1 20100820; JP 2006291952 A 20061026; US 2006222506 A1 20061005
DOCDB simple family (application)
EP 06300288 A 20060327; CN 200610072638 A 20060405; FR 0503352 A 20050405; JP 2006101399 A 20060403; US 39657406 A 20060404