EP 2145028 B1 20100707 - AMALGAM SPHERES FOR ENERGY-SAVING LAMPS AND THE MANUFACTURE THEREOF
Title (en)
AMALGAM SPHERES FOR ENERGY-SAVING LAMPS AND THE MANUFACTURE THEREOF
Title (de)
AMALGAMKUGELN FUER ENERGIESPARLAMPEN UND IHRE HERSTELLUNG
Title (fr)
BILLES D'AMALGAME POUR LAMPES À ÉCONOMIE D'ÉNERGIE ET LEUR PRODUCTION
Publication
Application
Priority
- EP 2008054839 W 20080422
- EP 07008717 A 20070428
- EP 08736446 A 20080422
Abstract (en)
[origin: EP1985717A1] The spheres are made from tin amalgam with a mercury content in the range 30-70%. They are coated with a metal- or alloy powder, which forms an amalgam with mercury. The powder particle diameter is less than 100 mu m. The powder is tin, zinc or an alloy of tin or zinc. The spheres are coated with 10 wt% of the powder, based on their weight. In addition they are coated with 0.001 - 1 wt% of powdered metal oxide. The powder is tin or a tin alloy. It is alternatively an alloy of tin, silver and copper. The diameter of the spheres is 50-2000 mu m. To make them, the amalgam is completely melted and dripped into coolant, e.g. a silicon oil, at a temperature below the setting temperature of the amalgam. The spheres are then separated-out. The coolant is a mineral-, organic- or synthetic oil. Residual oil is removed from the spheres by de-greasing. At room temperature, under constant circulation, the spheres are coated with the powder, until they no longer stick together. In a further stage, they are similarly-coated with the metal oxide powder. An independent claim is included for the method of manufacturing the amalgam spheres.
IPC 8 full level
C22C 7/00 (2006.01); H01J 61/20 (2006.01); H01J 61/24 (2006.01)
CPC (source: EP US)
C22C 7/00 (2013.01 - EP US); C22C 13/00 (2013.01 - EP US); H01J 61/20 (2013.01 - US); H01J 61/24 (2013.01 - US); H01J 61/28 (2013.01 - EP US); Y10T 428/2982 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1985717 A1 20081029; EP 1985717 B1 20110629; AT E473307 T1 20100715; AT E514797 T1 20110715; CN 101960027 A 20110126; CN 101960027 B 20130501; CN 103194638 A 20130710; DE 502008000912 D1 20100819; EP 2145028 A1 20100120; EP 2145028 B1 20100707; JP 2010527097 A 20100805; JP 2013069700 A 20130418; JP 5193285 B2 20130508; JP 5599449 B2 20141001; PL 1985717 T3 20111130; PL 2145028 T3 20101231; US 2010130092 A1 20100527; US 2014009059 A1 20140109; US 8497622 B2 20130730; US 9324555 B2 20160426; WO 2008132089 A1 20081106
DOCDB simple family (application)
EP 07008717 A 20070428; AT 07008717 T 20070428; AT 08736446 T 20080422; CN 200880012467 A 20080422; CN 201310106197 A 20080422; DE 502008000912 T 20080422; EP 08736446 A 20080422; EP 2008054839 W 20080422; JP 2010504659 A 20080422; JP 2012273008 A 20121214; PL 07008717 T 20070428; PL 08736446 T 20080422; US 201313929096 A 20130627; US 59576208 A 20080422