公开(公告)号：US06302186B1

公开(公告)日：2001-10-16

申请号：US09431659

申请日：1999-11-01

申请人： Patricia E. Vidal

发明人： Patricia E. Vidal

IPC分类号： B22D1300

CPC分类号： B28B3/025 ,  A61C13/20 ,  B28B1/24 ,  B28B1/44 ,  B28B3/021 ,  B28B7/34

摘要： A disposable plunger for use in a pressing furnace for the fabrication of dental restorations. The plunger is fabricated of a refractory investment material such as gypsum-bonded, phosphate-bonded or ethyl silicate-bonded investment materials. The plunger is fabricated by known casting methods. The mold used for making the plunger can be supplied by a manufacturer of molds or can be easily made by using an alumina or similar plunger as a model. Laborious cleaning and grinding are not required with plungers herein described. Cracking problems that occur with prior art plungers are decreased, if not completely eliminated.

摘要翻译： 一种用于制造牙科修复体的加压炉中的一次性柱塞。 柱塞由难熔投资材料制成，例如石膏粘合，磷酸盐键合或硅酸乙酯粘合投资材料。 柱塞通过已知的铸造方法制造。 用于制造柱塞的模具可以由模具制造商提供，或者可以通过使用氧化铝或类似的柱塞作为模型容易地制造。 本文所述的柱塞不需要进行大量的清洁和研磨。 如果不是完全消除，现有技术柱塞发生的裂纹问题减少。

公开(公告)号：US06484791B1

公开(公告)日：2002-11-26

申请号：US09469121

申请日：1999-12-21

申请人： Patricia E. Vidal

发明人： Patricia E. Vidal

IPC分类号： B22D1700

CPC分类号： B28B7/34 ,  A61C13/20 ,  B28B1/24 ,  B28B1/44 ,  B28B3/021 ,  B28B3/025

摘要： A disposable plunger for use in a pressing furnace for the fabrication of dental restorations. The plunger is fabricated of a partially sintered ceramic material. The plunger is fabricated by known casting methods. The mold used for making the plunger can be supplied by a manufacturer of molds or can be easily made by using an alumina or similar plunger as a model. Laborious cleaning and grinding are not required with plungers herein described. Cracking problems that occur with prior art plungers are decreased, if not completely eliminated.

摘要翻译： 一种用于制造牙科修复体的加压炉中的一次性柱塞。 柱塞由部分烧结的陶瓷材料制成。 柱塞通过已知的铸造方法制造。 用于制造柱塞的模具可以由模具制造商提供，或者可以通过使用氧化铝或类似的柱塞作为模型容易地制造。 本文所述的柱塞不需要进行大量的清洁和研磨。 如果不是完全消除，现有技术柱塞发生的裂纹问题减少。