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    Apparatus and method for machining a prosthetic tooth restoration
    1.
    发明授权
    Apparatus and method for machining a prosthetic tooth restoration 失效
    用于加工假肢牙齿修复体的装置和方法

    公开(公告)号：US06641340B1

    公开(公告)日：2003-11-04

    申请号：US09151100

    申请日：1998-09-10

    申请人： Victor J. Hajjar ,  John Robert Studer

    发明人： Victor J. Hajjar ,  John Robert Studer

    IPC分类号： B23C116

    CPC分类号： A61C13/0003 ,  A61C5/77 ,  A61C13/0022 ,  Y10S269/902 ,  Y10S269/909 ,  Y10T29/49567 ,  Y10T409/301456 ,  Y10T409/301568 ,  Y10T409/30168 ,  Y10T409/30252 ,  Y10T409/302632 ,  Y10T409/30336 ,  Y10T409/307 ,  Y10T409/30868 ,  Y10T409/309016

    摘要： The present invention is directed to enhancing the accuracy with which tooth restorations are performed, including the manner by which a tooth is prepared and fit with a dental prosthetic, such as a crown or bridge. Further, the present invention is directed to reducing the skill-dependent tasks associated with tooth restoration, including root canals, while at the same time, improving the precision with which these procedures are performed and by aesthetics of the prosthetic. By improving the accuracy of restoration procedures, any need to repeat these procedures for a given patient can be eliminated and patient comfort can be improved. In addition, by improving the precision with which a prosthetic is prepared for attachment to the prepared tooth of a patient, and/or fit to patient, durability and longevity of the prosthetic are improved. For example, when the interior of a prosthetic is not precisely fit to the prepared tooth of a patient, as in a case where the coping is undersized relative to the prepared tooth, buckling of the coping can occur. As a result, the buckling of the coping can cause the porcelain exterior of the prosthetic to crack. Because exemplary embodiments of the present invention provide a precise and accurate fit, they avoid such buckling of the prosthetic's interior, and therefore, improve the longevity of the prosthetic.

    摘要翻译： 本发明旨在提高执行牙齿修复的精度，包括牙齿的准备方式和与牙科假体（例如牙冠或牙桥）配合的方式。 此外，本发明旨在减少与牙修复相关的技能依赖性任务，包括根管，同时提高这些程序的执行精度以及假肢美观。 通过提高恢复程序的准确性，可以消除对给定患者重复这些程序的任何需要，并且可以改善患者的舒适度。 此外，通过提高制备用于附着到患者​​准备的牙齿上的假体和/或适合患者的精度，改善了假体的耐久性和寿命。 例如，当假体的内部不准确地配合到患者的准备的牙齿时，如在相对于准备好的牙齿的应对尺寸过小的情况下，可能发生应对的屈曲。 结果，应对的弯曲可能导致假肢的瓷器外部破裂。 由于本发明的示例性实施例提供精确和精确的配合，所以它们避免了假肢内部的这种屈曲，并因此改善了假肢的寿命。

    Duplicator device for radial arm saw
    2.
    发明授权
    Duplicator device for radial arm saw 失效

    公开(公告)号：US06491072B2

    公开(公告)日：2002-12-10

    申请号：US10008274

    申请日：2001-11-08

    申请人： Richard G. Pikna

    发明人： Richard G. Pikna

    IPC分类号： B27C500

    CPC分类号： B44B1/02 ,  B23Q35/102 ,  Y10T409/3014 ,  Y10T409/301568

    摘要： The invention provides a woodworking duplicator which is adapted to be attached to a standard radial arm saw. The device allows a rotating cutting tool and a stylus to be movably supported allowing the user to trace a pattern with the stylus while cutting the pattern into a work piece with the cutter. The invention provides a duplicator that may be mounted to a radial arm saw wherein the duplicator includes elements that may be moved in five different directions. The invention also provides a duplicator having a stylus and a cutter that may be easily locked into different parallel positions so that the user of the duplicator may more easily trace the item being duplicated. The invention also provides a duplicator that supports the weight of the stylus and cutter tool.

    Cutting tool
    3.
    发明授权
    Cutting tool 失效
    切割用具

    公开(公告)号：US4604007A

    公开(公告)日：1986-08-05

    申请号：US697205

    申请日：1985-02-01

    申请人： Luke Hall ,  Jerry M. Multop

    发明人： Luke Hall ,  Jerry M. Multop

    IPC分类号： B23Q1/54 ,  B23Q1/62 ,  B23Q11/00 ,  B23Q35/10 ,  B23C1/16

    CPC分类号： B23Q11/0025 ,  B23Q1/5468 ,  B23Q1/621 ,  B23Q35/10 ,  Y10T409/3014 ,  Y10T409/301568 ,  Y10T409/30252

    摘要： Apparatus is provided for guiding a powered cutting tool as a function of a traced preselected pattern. The apparatus preferably includes a table member for supporting both of work piece and a paper or the like, exhibiting the pattern of interest. A first pair of rail members are fixedly mounted to or adjacent opposite sides of the table member, in parallel with each other, and on opposite sides of both the work piece and the paper exhibiting the pattern. In addition, a carriage assembly is slidably positioned on the first pair of rails, for movably supporting a stylus above the paper exhibiting the pattern, and for movably supporting the cutting tool and its driving mechanism adjacent the work piece.

    摘要翻译： 设备用于根据跟踪的预选图案来引导动力切割工具。 该装置优选地包括用于支撑工件和纸等的表面构件，表现出感兴趣的图案。 第一对轨道构件彼此平行地固定地安装到桌子构件的相对侧或邻近桌子构件的相对侧，并且在工件和呈现图案的纸张的相对侧上。 此外，托架组件可滑动地定位在第一对导轨上，用于可移动地支撑在展现图案的纸上方的触针，并且用于可动地支撑切割工具及其与工件相邻的驱动机构。