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    Overwritable magnetooptical recording element including first and second magnetic layers, with one of which containing zirconium
    1.
    发明授权
    Overwritable magnetooptical recording element including first and second magnetic layers, with one of which containing zirconium 失效
    可覆盖的磁光记录元件包括第一和第二磁性层，其中一个含有锆

    公开(公告)号：US5069984A

    公开(公告)日：1991-12-03

    申请号：US571363

    申请日：1990-08-23

    申请人： Tukaram K. Hatwar ,  Anthony C. Palumbo, Jr. ,  Douglas G. Stinson

    发明人： Tukaram K. Hatwar ,  Anthony C. Palumbo, Jr. ,  Douglas G. Stinson

    IPC分类号： G11B11/10 ,  G11B11/105

    CPC分类号： G11B11/10591

    摘要： A multilayer, direct-overwrite, magnetooptic recording element comprises first and second layers of magnetic materials having different magnetic coercivities and Curie temperatures. According to the invention, one of the two magnetic layers is doped with zirconium. The addition of zirconium has the effect of substantially lowering the Curie temperature of the doped layer, thereby enlarging the Curie temperature differential between the magnetic layers. The zirconium additive also has the effect of stabilizing the magnetic properties of the doped layer.

    摘要翻译： 多层直接覆盖磁光记录元件包括具有不同磁性矫顽力和居里温度的磁性材料的第一层和第二层。 根据本发明，两个磁性层之一掺杂有锆。 添加锆具有显着降低掺杂层的居里温度的作用，从而扩大了磁性层之间的居里温度差。 锆添加剂也具有稳定掺杂层的磁性能的作用。

    Apparatus and method for double sheet separation by vacuum ports
    2.
    发明授权
    Apparatus and method for double sheet separation by vacuum ports 失效
    真空口双层分离装置及方法

    公开(公告)号：US4772008A

    公开(公告)日：1988-09-20

    申请号：US567607

    申请日：1984-01-03

    申请人： Paul R. Spencer ,  Anthony C. Palumbo, Jr.

    发明人： Paul R. Spencer ,  Anthony C. Palumbo, Jr.

    IPC分类号： B65H7/12 ,  B65H29/70

    CPC分类号： B65H7/12 ,  B65H2404/611

    摘要： An apparatus and method for separating doublets includes a device in which opposed surfaces that are connected to a vacuum source have a rippled portion in which vacuum slots are positioned at the apex of the ripples. There is a gradual transition in the surface of the slots from a planar portion to a rippled portion and back to a planar portion. The two surfaces are spaced a predetermined distance from each other such that when a double sheet of paper is driven through the rippled area, both the upper sheet and the lower sheet can tack to the upper and lower slots without having to jump across a gap. Subsequently, as the two sheets move into the area of the surfaces where there are no ripples, a strong separating force is generated as each sheet remains attached to the respective vacuum slots since the upper and lower slots are not in the same plane.

    摘要翻译： 用于分离双峰的装置和方法包括其中连接到真空源的相对表面具有波纹部分的装置，其中真空槽位于波纹的顶点处。 槽的表面从平面部分到波纹部分逐渐过渡到平面部分。 两个表面彼此隔开预定的距离，使得当双页纸被驱动通过波纹区域时，上片和下片都可以粘贴到上槽和下槽，而不必跳过间隙。 随后，当两片移动到没有波纹的表面的区域中时，由于上部和下部槽不在同一平面内，因为每个片保持附着到相应的真空槽上，所以产生强大的分离力。