EP 0058610 B1 19880713 - METHOD AND INSTALLATION FOR PRODUCING A HIGH VACUUM USING A SINGLE-STAGE LIQUID-RING PUMP
Title (en)
METHOD AND INSTALLATION FOR PRODUCING A HIGH VACUUM USING A SINGLE-STAGE LIQUID-RING PUMP
Publication
Application
Priority
FR 8102929 A 19810213
Abstract (en)
[origin: US4505645A] An installation for rapidly obtaining a high vacuum, comprising two compression stages, the first of which is a liquid ring vacuum pump, characterized in that means are provided for instantaneously coupling or dissociating the first stage and the second stage. The invention concerns also a process intended to be used in said installation.
IPC 1-7
IPC 8 full level
F04B 23/12 (2006.01); F04C 23/00 (2006.01); F04F 5/54 (2006.01); F04B 41/06 (2006.01)
CPC (source: EP US)
F04B 23/12 (2013.01 - EP US); F04C 23/005 (2013.01 - EP US); F04F 5/54 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0058610 A1 19820825; EP 0058610 B1 19880713; AT E35721 T1 19880715; DE 3278768 D1 19880818; FR 2500086 A1 19820820; FR 2500086 B1 19830325; US 4505645 A 19850319
DOCDB simple family (application)
EP 82400242 A 19820210; AT 82400242 T 19820210; DE 3278768 T 19820210; FR 8102929 A 19810213; US 34743082 A 19820210