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    • 3. 发明授权
    • Method of fabrication of translucent dental restorations without
opacious substructures
    • 半透明牙科修复体的制造方法,没有柔软的亚结构
    • US6033222A
    • 2000-03-07
    • US64766
    • 1998-04-23
    • George J. Schneider, IILawrence Taub
    • George J. Schneider, IILawrence Taub
    • A61C5/77A61C13/00A61C13/08A61C13/09
    • A61C5/002A61C13/0003A61C13/082A61C13/09A61C5/10
    • A series of die spacers of differing shades are used to match or replicate an assortment of tooth stump or dentin tooth shades. Such die spacers correspond to shades of various manufacturers. This allows the dentist to approximate the proper shade of the tooth preparation in his prescription of a translucent restoration which is communicated to the technician. The technician then applies onto the die of the tooth preparation a die spacer closely matching the chosen tooth stump shade, allowing the technician to wax-up over the die with the selected die spacer. The die spacer retains the traditional function of creating the necessary space under the wax pattern or wax-up. After removal of the wax-up from the die, it is processed, following the manufacturer's procedures, to make a non-opacious substructure of, for example, a translucent ceramic restoration. The dental lab technician readily is then able to return to the patient's original tooth color preparation to complete the fabrication of the translucent restoration (bridge, crown, onlay, inlay or veneer) in accordance with the dentist's prescription.
    • 一系列不同色调的模具间隔件用于匹配或复制各种牙残桩或牙质牙齿。 这种模具间隔件对应于各种制造商的阴影。 这允许牙医在他处方的半透明修复物中接近牙齿准备的正确的阴影,该透明修复物传达给技术人员。 然后,技术人员将与牙齿准备物的模具一起施加到与所选择的齿残余树荫密切匹配的模具间隔件上,从而允许技术人员使用所选择的压模间隔件在模具上蜡化。 模具间隔件保持了传统的功能,在蜡图形或蜡化下形成必要的空间。 在从模具中除去蜡后,按照制造商的程序加工,以制成例如半透明陶瓷修复体的非柔性子结构。 牙科实验室技术人员随时可以根据牙医的处方方式返回患者的原始牙齿颜色准备,以完成半透明修复(桥,冠,镶嵌,镶嵌或单板)的制造。
    • 4. 发明授权
    • Gauge for in situ measurement of borehole diameter
    • 井眼直径原位测量仪
    • US4852262A
    • 1989-08-01
    • US146504
    • 1988-01-21
    • Clarence O. BabcockGeorge J. Schneider
    • Clarence O. BabcockGeorge J. Schneider
    • G01B13/10
    • G01B13/10Y10S33/02
    • A gauge for measuring in situ the diameter of a borehole in salt or other ft creeping rock types is provided so that changes in borehole structure can be detected. The gauge comprises a cylindrical body insertable lengthwise into a borehole and having an internal channel wherein sensors can be displaced outwardly when air is directed into the gauge, two air displacement sensors located in the channel having slotted keyways at their inner ends which form an orifice proportional to the distance between the sensors, a pneumatic device capable of providing a stream of air into the gauge body, and a flow meter for measuring air flow through the gauge body. The borehole diameter is determined by directing a stream of air into the gauge body and measuring the air flow which will be proportional to the distance between the sensors when displaced outwardly against the borehole walls. The gauge is advantageous in that it does not itself create artificial stresses or deformations in the borehole walls.
    • 提供了用于原位测量盐或其他软蠕动岩石类型的钻孔直径的量规,以便能够检测井眼结构的变化。 该计量器包括一个圆柱形主体,其纵向插入钻孔中并具有内部通道,其中当空气被引导到量规中时,传感器可以向外移位,位于通道中的两个空气位移传感器在其内端处具有开槽的键槽, 到传感器之间的距离,能够向计量器主体提供空气流的气动装置和用于测量通过量规本体的空气流量的流量计。 通过将空气流引导到量规体中并测量空气流量来确定井眼直径,该空气流量将相对于相对于井眼壁向外移位的传感器之间的距离成比例。 该量规的优点在于它本身不会在井壁中产生人为的应力或变形。