Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1988-09-02
1989-11-21
Walberg, Teresa J.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219390, H05B 362
Patent
active
048824682
ABSTRACT:
An electric furnace (1), particularly for the heat treatment of workpieces constituting a charge (22) to be treated, concludes an outer casing (2) having two complementary parts adapted to be coupled and movable relative to one another, and, in said casing, at least one support (23) for the charge to be treated and at least one electric heating element (3). The furnace has at least two parts (1a, 1b), the first (1b) of which includes the support (23) for the charge (22) to be treated and a first part (6) of the outer casing (2), and the second (1a) of which includes the second part (5) of the outer casing (2) and a movable support (13, 14, 15) for permitting the two parts (1a, 1b) to move relative to one another. The first and second parts of the outer casing extend respectively over a part of the periphery of the charge to be treated in such a manner that the edges of the second part (5) thereof are outside the path of the charge to be treated. The second part (5) of the outer casing (2) extends, in the coupled position, above the charge to be treated, so as to free the vertical access to the charge support when said parts (1a, 1b) of the furnace are uncoupled.
REFERENCES:
patent: 657202 (1900-09-01), McBrair
patent: 2767297 (1956-10-01), Benson
patent: 3167642 (1965-01-01), Reis
patent: 3588305 (1971-06-01), Seelandt
patent: 4235592 (1980-11-01), Smith
patent: 4564744 (1986-01-01), Valentin
La Physique Appliquee Industrie
Walberg Teresa J.
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