Electric lamp and discharge devices – With temperature modifier – Double wall – jacket or casing for envelope
Reexamination Certificate
2005-12-13
2008-08-26
Roy, Sikha (Department: 2879)
Electric lamp and discharge devices
With temperature modifier
Double wall, jacket or casing for envelope
C313S634000
Reexamination Certificate
active
07417363
ABSTRACT:
A high intensity discharge lamp (10) has an envelope (12) having a base end (12a), a middle portion (12b) and domed end (12c) arrayed along an envelope longitudinal axis (14). Two spaced apart electrical lead-ins (34, 36) are sealed in the base end (12a) and extend into the envelope (12). A substantially U-shaped frame (38) is within the envelope (12) and the U-shaped frame comprises glass tubing26a.A light source (16) has an arc discharge capsule (16b) positioned within the frame (38) and a containment vessel (18) is spaced from and surrounds the arc discharge capsule16b.The containment vessel (18) comprises a transparent structure (19) attached to the frame (38) and formed to provide multiple, independent, localized fractures capable of absorbing the given kinetic energy possessed by the shards.
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Johnston David W.
Koenigsberg William D.
Lapatovich Walter P.
Selverian John H.
Wentzel David
Meyer William E.
Osram Sylvania Inc.
Roy Sikha
Schoolman Brian T
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