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专利名称：APPARATUS FOR OBTAINING IMPROVED
DENTAL CASTINGS
发明人：Carl H. Rousseau申请号：US06/718178申请日：19850401公开号：US04603728A公开日：19860805
摘要：The apparatus comprises an expandable investment ring having a removablebase. Formed on the top surface of the base, and within the void defined by the ring, is anindexed sprue former. A curved runner bar having an indexed coping is formed at one endthereof in mating relation to the sprue former. The curved full arch runner bar comprisesa proximal end portion and distal end portion with the distal end forming a first andsecond curved configuration portion which together approximates the curvedconfiguration of the jawbone of a patient. The first and second curved configurationportions are interconnected thereby resulting in extremely accurate full arch base metalcastings. The apparatus is also useful for preparing precious metal castings.
申请人：ROUSSEAU; CARL H.
代理机构：Frijouf, Rust & Pyle
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