Ladle heater with stopper rod opening

Details Ladle heater with stopper rod opening Ladle heater with stopper rod opening

1981-08-31

1983-06-07

Andrews, M. J.

Heating

Heat applicator having structure for mounting it on or...

266155, 266236, F23C 706

Patent

active

043869076

ABSTRACT:
The lid of a ladle heater includes a valve gate rod opening so that the ladle can move toward and away from engagement with the rim of the ladle about a valve gate rod. Cylindrical plug elements are supported between the lid of the ladle heater and the ladle and move apart to straddle the stopper rod, and as the lid moves toward engagement with the rim of the ladle the cylindrical plugs engage the ladle rim as the lid continues its movement, thus resulting in the cylindrical plugs moving into and closing the stopper rod opening.

REFERENCES:
patent: 792642 (1905-06-01), Williams
patent: 1675735 (1928-07-01), Stohr
patent: 2294168 (1942-08-01), Francis et al.
patent: 3148272 (1964-09-01), Aitken et al.
patent: 4001996 (1977-01-01), Byrd, Jr.
patent: 4090054 (1978-05-01), Heine et al.
patent: 4106755 (1978-06-01), Dell
patent: 4190235 (1980-04-01), Dell
patent: 4223873 (1980-01-01), Battles
patent: 4229211 (1980-11-01), Battles

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