EP 0940830 A3 20001025 - Contact piece for vacuum chambre and manufacturing process
Title (en)
Contact piece for vacuum chambre and manufacturing process
Title (de)
Kontaktstück für eine Vakuumkammer und Verfahren zur Herstellung des Kontaktstückes
Title (fr)
Pièce de contact pour chambre à vide et son procédé de fabrication
Publication
Application
Priority
DE 19809306 A 19980305
Abstract (en)
[origin: EP0940830A2] The contact piece has a base section which has several concentric grooves in the region of the surface of the contact piece, which are axially open to the contact piece surface or a counter contact. The base section is made of a good electrical conductor such as copper, while the surface of the contact piece is made of a less good conductor such as chrome and a chrome copper alloy. The less good conductor is situated in the grooves so that rings of good and less good conductors are arranged on the surface. A method of manufacturing a contact piece is also claimed.
IPC 1-7
IPC 8 full level
H01H 1/02 (2006.01)
CPC (source: EP)
H01H 1/0206 (2013.01)
Citation (search report)
- [Y] GB 1287665 A 19720906 - SIEMENS AG [DE]
- [Y] US 4695687 A 19870922 - GROSSE JOACHIM [DE], et al
- [A] US 4935588 A 19900619 - HESS RUEDIGER [DE], et al
- [DA] DE 3708158 A1 19880922 - LICENTIA GMBH [DE]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0940830 A2 19990908; EP 0940830 A3 20001025; DE 19809306 A1 19990909
DOCDB simple family (application)
EP 99103559 A 19990224; DE 19809306 A 19980305