Invention Grant
- Patent Title: Amalgam spheres for energy-saving lamps and their production
- Patent Title (中): 汞合金球体用于节能灯及其生产
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Application No.: US13929096Application Date: 2013-06-27
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Publication No.: US09324555B2Publication Date: 2016-04-26
- Inventor: Georg Ptaschek , Calogero Di Vincenzo
- Applicant: Umicore AG & Co. KG
- Applicant Address: DE Hanau-Wolfgang
- Assignee: UMICORE AG & CO. KG
- Current Assignee: UMICORE AG & CO. KG
- Current Assignee Address: DE Hanau-Wolfgang
- Agency: Smith, Gambrell & Russell, LLP
- Priority: EP07008717 20070428
- Main IPC: H01J29/82
- IPC: H01J29/82 ; H01J63/04 ; H01J61/20 ; C22C7/00 ; C22C13/00 ; H01J61/28 ; H01J61/24
Abstract:
Energy-saving lamps contain a gas filling of mercury vapor and argon in a gas discharge bulb. Amalgam spheres are used for filling the gas discharge bulb with mercury. A tin amalgam having a high proportion by weight of mercury in the range from 30 to 70% by weight is proposed. Owing to the high mercury content, the amalgam spheres have liquid amalgam phases on the surface. Coating of the spheres with a tin or tin alloy powder converts the liquid amalgam phases on the surface into a solid amalgam having a high tin content. This prevents conglutination of the amalgam spheres during storage and processing.
Public/Granted literature
- US20140009059A1 Amalgam spheres for energy-saving lamps and their production Public/Granted day:2014-01-09
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