Industrial electric heating furnaces – Plural diverse heating means – Arc
Reexamination Certificate
2006-06-13
2006-06-13
Hoang, Tu (Department: 2832)
Industrial electric heating furnaces
Plural diverse heating means
Arc
C373S010000, C361S144000
Reexamination Certificate
active
07061964
ABSTRACT:
An electrostatic levitation furnace is improved by providing three pairs of electrodes opposed to each other respectively on three axes perpendicularly intercepting each other at a position where the sample is to be levitated in the vacuum chamber, and disposing a plurality of access ports, which are directed to the position of the sample, to the vacuum chamber tree-dimensionally, whereby the accessible direction against the sample is diversified, it becomes possible to improve the degree of freedom in distribution of various apparatuses and easily cope with increase of apparatuses.
REFERENCES:
patent: 3965753 (1976-06-01), Browning, Jr.
patent: 4896849 (1990-01-01), Moynihan
patent: 5015906 (1991-05-01), Cho et al.
patent: 5155651 (1992-10-01), Yoda et al.
patent: 1434021 (2004-06-01), None
Asahi Hiroaki
Kawasaki Kazunori
Muramatsu Shoji
Takada Tetsuya
Hoang Tu
IHI Aerospace Co., Ltd.
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