Electric lamp and discharge devices – With gas or vapor – Envelope with particular structure
Reexamination Certificate
2006-11-07
2006-11-07
Patel, Ashok (Department: 2879)
Electric lamp and discharge devices
With gas or vapor
Envelope with particular structure
C313S623000, C313S624000, C313S625000
Reexamination Certificate
active
07132798
ABSTRACT:
The present invention provides a joined body having a first member7, a second member4and a joining material14interposed between the first and second members. The joining material has a porous bone structure15with open pores and made of a sintered product of metal powder and impregnated phase10impregnated into the open pores. The impregnated phase10includes an oxynitride glass. The joined body has improved resistance against fatigue and fracture, even when the body is subjected to thermal cycles between high and room temperatures and held at a high temperature over a long period of time.
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Canning Anthony
NGK Insulators Ltd.
Oliff & Berridg,e PLC
Patel Ashok
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