EP 0225562 B1 19890920 - VACUUM-SWITCHING TUBES
Title (en)
VACUUM-SWITCHING TUBES
Publication
Application
Priority
DE 3542742 A 19851203
Abstract (en)
[origin: US4737605A] A vacuum switching tube includes a pair of switch contacts having a larger diameter than their appertaining contact pins, an axial magnetic field being generated in the region of the switch contacts by a shield having high electrical conductivity. The shield is subdivided in an axial direction, is not connected electrically to any of the switch contacts, and is arranged potential-free. The present vacuum switching tube is suited for vacuum switching in a high short circuit breaking capacity.
IPC 1-7
IPC 8 full level
H01H 33/66 (2006.01); H01H 33/664 (2006.01)
CPC (source: EP US)
H01H 33/6645 (2013.01 - EP US); H01H 33/66261 (2013.01 - EP US); H01H 2033/66269 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE LI
DOCDB simple family (publication)
EP 0225562 A1 19870616; EP 0225562 B1 19890920; DE 3665791 D1 19891026; DE 8534022 U1 19870611; JP S62133623 A 19870616; US 4737605 A 19880412
DOCDB simple family (application)
EP 86116578 A 19861128; DE 3665791 T 19861128; DE 8534022 U 19851203; JP 28756486 A 19861201; US 93433786 A 19861124