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US 4,052,153 AGranted
Heat resistant crucible
AssigneeProlizenz AG
InventorsWerner J. Borer, Tibor Kugler, Walter Schmidt, Walter Stahlin
Life of this patent
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Abstract
A crucible, for use in heating and/or retaining melts at elevated temperatures, includes a hollow holding member composed of a heat resistant material, and a thin-walled insert composed of a substance chemically resistant to oxygen and oxidizing substances and being removably supported in the holding member.
Claims15
A crucible, for use in heating and/or retaining melts at elevated temperatures,
- comprising in combination:
- a holding member composed of a heat-resistant material open at the bottom;
- a fire-proof base-plate removably positioned below said holding member and operable to close said bottom;
- and
- a thin-walled insert cup composed of a substance chemically resistant to oxygen and oxidizing substances and being removably supported in said holding member above said base-plate.
2 more elements
Dependencies are inferred from the claim text.