Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Reexamination Certificate
2005-03-08
2005-03-08
Williams, Joseph (Department: 2879)
Electric lamp or space discharge component or device manufacturi
Process
With assembly or disassembly
C445S029000, C445S043000, C313S625000
Reexamination Certificate
active
06863586
ABSTRACT:
A sealing plug used for sealing an arc tube, and formed from a plurality of sintered layers. The sealing plug is obtained by conducting a slurry preparation step of preparing slurries corresponding to each layer of the sealing plug by mixing together a tungsten powder, a silica powder, an organic binder, an organic solvent, and a dispersant; a preform manufacturing step of manufacturing layers of a preform by repeating the process of dipping the metal lead wire into the slurries with the metal lead wire in a perpendicular position, and drying the slurry adhering when the metal lead wire is removed; and a sintering step of sintering the manufactured preform.
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patent: 5742123 (1998-04-01), Nagayama
patent: 6020685 (2000-02-01), Wei et al.
patent: 6190728 (2001-02-01), Suzuki et al.
patent: 05-290810 (1993-11-01), None
patent: 11-171590 (1999-06-01), None
patent: 2000-315456 (2000-11-01), None
Colón German
Williams Joseph
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