Electric lamp and discharge devices – With support and/or spacing structure for electrode and/or... – For plural electrodes of discharge device
Reexamination Certificate
2008-02-21
2010-10-05
Patel, Nimeshkumar D (Department: 2879)
Electric lamp and discharge devices
With support and/or spacing structure for electrode and/or...
For plural electrodes of discharge device
C313S484000
Reexamination Certificate
active
07808167
ABSTRACT:
The high-pressure discharge lamp includes: a pre-seal glass inserted in the internal space of each of seal portions and integrally comprising a metal foil sheathing portion which sheathes a metal foil, an electrode sheathing portion which sheathes a portion of an electrode that extends from a first end of the metal foil toward a base portion and an external lead pin sheathing portion which sheathes a portion of an external lead pin that extends outwardly from the other end of the metal foil; and a conductor for generating discharge between the conductor and the metal foil. The electrode sheathing portion is fused to the base portion. The external lead pin sheathing portion has an outer surface hermetically fused to an inner surface of one of the seal portions. A clearance hermetically sealed between the pre-seal glass and the seal portion encapsulates inert gas therein.
REFERENCES:
patent: 5363007 (1994-11-01), Fromm et al.
patent: 6713963 (2004-03-01), Nakagawa
patent: 7038384 (2006-05-01), Horiuchi et al.
patent: 2006/0049764 (2006-03-01), Bedynek et al.
Fujii Toshitaka
Ikeda Tomihiko
Nakagawa Atsuji
Takahashi Hiroki
Kubotera & Associates LLC
Patel Nimeshkumar D
Phoenix Electric Co., Lt.d
Stern Jacob
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