EP 0621623 B1 19970917 - Double-based low pressure discharge lamp
Title (en)
Double-based low pressure discharge lamp
Title (de)
Zweiseitig gesockelte Niederdruckentladungslampe
Title (fr)
Lampe à décharge à basse pression à double culot
Publication
Application
Priority
DE 9305977 U 19930420
Abstract (en)
[origin: CA2121640A1] To ensure contact of axially bent-back current supply leads, extending over plate-like base terminals of an elongated fluorescent lamp, and ensure electrical connection between the bent-over or bent-back portions with socket terminal springs (9a, 9b), in spite of misalignment of the bases (3) at two opposite ends of the fluorescent lamp, the junctions or corners (1118) between the narrow wall portions (18a, 18b) and wide side wall portions (11a, 11b; 12a, 12b; 13a, 13b) of the end portion (4) of the base are set back from the position in a theoretical geometric rectangle or parallelogram to form relieved wide side wall portions. The relieved side wall portions extend axially over essentially the entire length of the end portion (4) of the base. The arrangement permits alignment tolerances, that is, limited relatively canted or twisted positioning of the bases, and insertion into aligned sockets, while ensuring reliable electrical connection between the lamp terminals and the socket connection elements (5a, 6b).
IPC 1-7
IPC 8 full level
H01J 5/50 (2006.01); H01J 5/56 (2006.01); H01J 61/70 (2006.01)
CPC (source: EP US)
H01J 5/50 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
DE 9305977 U1 19930812; CA 2121640 A1 19941021; CA 2121640 C 20030923; DE 59404064 D1 19971023; EP 0621623 A2 19941026; EP 0621623 A3 19951011; EP 0621623 B1 19970917; JP 3003293 U 19941018; US 5491374 A 19960213
DOCDB simple family (application)
DE 9305977 U 19930420; CA 2121640 A 19940419; DE 59404064 T 19940412; EP 94105616 A 19940412; JP 401794 U 19940418; US 22917794 A 19940418