Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1990-06-29
1991-05-21
Yuen, Henry C.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
432128, 432205, 414200, 414217, F27B 904
Patent
active
050171313
ABSTRACT:
An atmosphere furnace including a plurality of divided furnace units, work transfer devices connecting the adjacent divided furnace units and those for the divided furnace units at both ends of the furnace. Each transfer device includes a tubular connecting frame and a work transfer member housed therein and the work transfer member has a work housing space in it. The work transfer member is rotatable, receives at a first position the work from outside or from an adjacent divided furnace unit into its work housing space, and send it out of the furnace or pass it to the adjacent divided furnace unit at a second position. When the work transfer member is at a middle position between the first and the second positions, the work housing space thereof faces an inner surface of the connecting frame so as to be sealed against the both end openings of the frame. Furthermore, it is provided with a channel for receiving the atmosphere from any divided furnace unit or outside space when the transfer member is at the middle position so as to have the work in the work housing space gradually heated or cooled through introduction of the atmosphere.
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Ishimoto Kazumi
Izumi Yasuo
Makino Yutaka
Sato Syoji
Matsushita Electric - Industrial Co., Ltd.
Yuen Henry C.
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