Heat treatment furnace

Details Heat treatment furnace Heat treatment furnace

2006-08-15

2006-08-15

Wilson, Gregory (Department: 3749)

Heating

Work chamber having heating means

Having means by which work is progressed or moved mechanically

Reexamination Certificate

active

07090488

ABSTRACT:
A heating zone (4), a cooling zone (5), and a quenching zone (6) are provided inside a linear furnace body in this order, the heating zone (4), the cooling zone (5), and the quenching zone (6) being separated by partition doors (2, 3). Conveying means of a work (W) is a tray pusher (7) in the heating zone (4) and conveying means of the work (W) is roller hearths (8, 9) in the cooling zone (5) and the quenching zone (6), the roller hearths (8, 9) being independently driven.

REFERENCES:
patent: 3778221 (1973-12-01), Bloom
patent: 4421481 (1983-12-01), Holz et al.
patent: 4627814 (1986-12-01), Hattori et al.
patent: 4932864 (1990-06-01), Miyabe
patent: 4966547 (1990-10-01), Okuyama et al.
patent: 5443383 (1995-08-01), Kuehn
patent: 6530780 (2003-03-01), Mori et al.
patent: 61-16912 (1986-05-01), None
patent: 3-281771 (1991-12-01), None
patent: 6-330153 (1994-11-01), None
patent: 2001-207253 (2001-07-01), None
English Language Abstract of JP. 61-16912; JP 3-281771; 6-330153 and 21-207253 Copy of International Search Report.

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