EP 0445503 B1 19931229 - Two stage cryopump.
Title (en)
Two stage cryopump.
Title (de)
Zweistufige Kryopumpe.
Title (fr)
Pompe cryogénique à deux étages.
Publication
Application
Priority
DE 4006755 A 19900303
Abstract (en)
[origin: EP0445503A1] The invention relates to a two-stage kryopump having condensation and adsorption surfaces arranged on the second (colder) stage (9); in order to be able partially to regenerate the adsorption surfaces (12, 13), it is proposed to mount the adsorption surfaces (12, 13) on the second stage (9) in such a way that during the operation of partial regeneration they are thermally protected with respect to the second stage (9) of the regenerator. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 37/08 (2006.01); F25D 19/00 (2006.01); F25B 9/14 (2006.01)
CPC (source: EP US)
F04B 37/08 (2013.01 - EP US); F25D 19/006 (2013.01 - EP US); F25B 9/14 (2013.01 - EP US); Y10S 417/901 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0445503 A1 19910911; EP 0445503 B1 19931229; DE 4006755 A1 19910905; DE 59100757 D1 19940210; JP 2871873 B2 19990317; JP H04219478 A 19920810; US 5111667 A 19920512
DOCDB simple family (application)
EP 91100181 A 19910108; DE 4006755 A 19900303; DE 59100757 T 19910108; JP 3412691 A 19910228; US 66313091 A 19910304