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    Self-retaining dental screw
    11.
    发明授权
    Self-retaining dental screw 有权

    公开(公告)号：US10470851B2

    公开(公告)日：2019-11-12

    申请号：US15104270

    申请日：2014-12-22

    Applicant: STRAUMANN HOLDING AG

    Inventor： Stéphane Courvoisier ,  Silvio Blumenthal

    IPC: A61C8/00 ,  A61C13/225

    Abstract: A self-retaining screw assembly comprising a dental secondary component and a screw. The secondary component comprises a through passage having an apical and a coronal open end, and a screw seat located between said apical and coronal ends. The screw comprises a screw rod and a screw head, the screw head being dimensioned to abut against the screw seat and the screw rod being dimensioned to pass unhindered through the through passage such that the apical end of the rod can protrude from the apical end of the through passage. The through passage further comprises, coronal of the screw seat, a first section and, directly coronal of the first section a second section having a narrower diameter than the first section, such that the second section forms a restriction in the through passage. The screw head comprises a radially outwardly extending retaining element.

    Vibration-damped high-speed tool holder
    13.
    发明授权
    Vibration-damped high-speed tool holder 有权

    公开(公告)号：US10434581B2

    公开(公告)日：2019-10-08

    申请号：US15519691

    申请日：2015-10-19

    Applicant: STRAUMANN HOLDING AG

    Inventor： Dieter Kurth

    IPC: B23B31/117 ,  B23B31/02 ,  B23Q11/10 ,  F16F7/01 ,  F16F9/30 ,  B23B27/00

    Abstract: A high-speed tool holder includes: a tool shaft for accommodating a tool at its first end, and a machine clamping part which is integrally connected to the tool shaft and forms an interface for clamping in the machine; with the tool shaft being substantially truncated circular cone-shaped, a first diameter at the first end with the tool insertion opening being smaller than a fifth diameter at the second end at the machine clamping part; and a portion of the substantially truncated circular cone-shaped tool shaft having an outwardly bulging, preferably spherical, shape between the tool insertion opening and the machine clamping part.

    PROCESS FOR PROVIDING A DEFINED SURFACE TOPOGRAPHY TO AT LEAST A PORTION OF A CERAMIC BODY
    18.
    发明申请
    PROCESS FOR PROVIDING A DEFINED SURFACE TOPOGRAPHY TO AT LEAST A PORTION OF A CERAMIC BODY 审中-公开
    提供定义的表面形貌至少一个陶瓷体的部分的过程

    公开(公告)号：US20170001920A1

    公开(公告)日：2017-01-05

    申请号：US15106863

    申请日：2014-12-22

    Applicant: STRAUMANN HOLDING AG

    Inventor： Simon BERNER

    IPC: C04B41/53 ,  C04B41/87 ,  A61C8/00 ,  C04B41/00

    CPC classification number: C04B41/5353 ,  A61C8/0012 ,  A61C8/0013 ,  A61C8/005 ,  A61C2008/0046 ,  C04B41/009 ,  C04B41/5042 ,  C04B41/87 ,  C04B2111/00836 ,  C04B35/48 ,  C04B41/4535 ,  C04B41/4556 ,  C04B41/53 ,  C04B2103/001

    Abstract: A Process for providing a defined surface topography to at least a portion of a ceramic body, the process comprising the subsequent steps of a) applying a layer of a calcium containing substance comprising at least one calcium compound onto the surface of at least a portion of the ceramic basic body; b) thermally treating the ceramic basic body with the layer applied thereon at an elevated temperature, whereby a calcium compound or a calcium component based on the calcium compound diffuses into the basic body to form an intermediate body, said intermediate body comprising in its outermost surface region a calcium containing crystalline phase; and c) chemically treating the outermost surface region of the intermediate body with an inorganic acid or base to partially remove the calcium containing crystalline phase, thereby obtaining the surface topography.

    Abstract translation: 本发明涉及一种用于向陶瓷体的至少一部分提供限定的表面形貌的方法，该方法包括以下步骤：a）将包含至少一种钙化合物的含钙物质层施加到 陶瓷基体的至少一部分; b）在升高的温度下用其上施加的层热处理陶瓷基体，由此基于钙化合物的钙化合物或钙组分扩散到基体中以形成中间体，所述中间体在其最外表面 区域含钙结晶相; 和c）用无机酸或碱化学处理中间体的最外表面区域，以部分除去含钙结晶相，从而获得表面形貌。 另一方面，表面形貌由平均高度在0.1μm至1.7μm的范围内定义。

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