Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent
1992-10-01
1994-05-24
Yuen, Henry C.
Heating
Work chamber having heating means
Having means by which work is progressed or moved mechanically
1987743, 198776, 432124, F27B 914
Patent
active
053143302
ABSTRACT:
A furnace is provided for continuous high-temperature heat processing in which a work product is conveyed through a furnace muffle by rectilinear beam motion. An inner and an outer beam are equipped with interleaved rods which are used to alternately lift the work product and advance it through the muffle. A continuous cycle of sequentially raising and advancing the rods attached to one beam, while lowering and retracting the rods of the other beam causes stepwise movement of the work product through the furnace. At no point in the cycle does the work product, rods, or beams make contact with the muffle, nor do the interleaved rods touch each other. The result is frictionless conveyance of the work product through the muffle which virtually eliminates particle generation.
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patent: 4741695 (1988-05-01), Ushijima
patent: 4919254 (1990-04-01), Briemont
BTU International
Yuen Henry C.
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