Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2006-11-30
2008-12-30
Campbell, Thor S (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C313S271000
Reexamination Certificate
active
07471885
ABSTRACT:
A filament lamp in which the article to be treated can be uniformly heated, and in which the disadvantage of poor sealing or the like does not arise even in the case of inserting a host of metal foils into a hermetically sealed portion is achieved in a filament lamp in the bulb of which there are several filament bodies, in which filaments and leads for supply of power to the filaments are connected to one another, and in which, on an end of the bulb, there is a hermetically sealed portion in which there is a rod-shaped sealing insulator on the periphery of which several electrically conductive components that are connected to the filaments are arranged spaced from one another.
REFERENCES:
patent: 2159794 (1939-05-01), Hagen et al.
patent: 3039015 (1962-06-01), Jolly
patent: 3335312 (1967-08-01), Cardwell, Jr.
patent: 4359665 (1982-11-01), Morris et al.
patent: 4442374 (1984-04-01), Morris et al.
patent: 4580079 (1986-04-01), Koo
patent: 4605877 (1986-08-01), Cho et al.
patent: 6583540 (2003-06-01), Al-Refai
patent: 6624428 (2003-09-01), Hishinuma
patent: 2004/0112885 (2004-06-01), Shigeoka et al.
patent: 2006/0197454 (2006-09-01), Mizukawa et al.
patent: 2006/0255736 (2006-11-01), Selen et al.
patent: 2007/0071906 (2007-03-01), Seki et al.
patent: 1 125 003 (1968-08-01), None
patent: 04329253 (1992-11-01), None
patent: 7037833 (1995-02-01), None
patent: 07016353 (1995-03-01), None
Inaoka Norihiro
Kitagawa Tetsuya
Mizukawa Yoichi
Campbell Thor S
Roberts Mlotkowski Safran & Cole P.C.
Safran David S.
Ushiodenki Kabushiki Kaisha
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