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US 3,958,924 AGranted
Furnace fittings
AssigneeAdvanced Materials Engineering Limited
InventorsJohn Egenolf, Stephen John Osborne
Life of this patent
Estimating the term…
Abstract
The invention is furnace fittings in which supports made of silicon nitride or of other ceramic are formed so as to be removably fitted to a base, the supports being formed also so as to support a "green" artefact such as dental artefacts during firing of the green artefact in a furnace.
Claims4
Furnace fittings for furnace firing green ceramic artefacts comprising:
- a. a support base having plural mounting means,
- b. and a plurality of artefact supporting means each having mounting means removably engaged with one of said base mounting means to removably mount said artefact supporting means on said base,
- c. said support base and each of said artefact supporting means consisting of silicon nitride and being directly engageable with said green ceramic artefact without wetting of the silicon nitride by the heated green ceramic.
Dependencies are inferred from the claim text.