Substrate for an information recording medium, information recording medium using the substrate, and method of producing the substrate
    35.
    发明授权
    Substrate for an information recording medium, information recording medium using the substrate, and method of producing the substrate 有权
    用于信息记录介质的基板,使用该基板的信息记录介质以及该基板的制造方法

    公开(公告)号:US06852010B2

    公开(公告)日:2005-02-08

    申请号:US10345228

    申请日:2003-01-16

    摘要: A substrate for an information recording medium has a microwaviness average height Ra′ not greater than 0.05 microinch as measured by a contactless laser interference technique for measurement points within a measurement region of 50 μm□-4 mm□ on a surface of the substrate. The microwaviness average height Ra′ is given by: Ra ′ = 1 n ⁢ ∑ i = 1 n ⁢   | xi - x _ | , where xi represents a measurement point value of each measurement point, {overscore (x)} representing an average value of the measurement point values, n representing the number of said measurement points. Alternatively, the substrate has a waviness period between 300 μm and 5 mm and a waviness average height Wa of 1.0 nm or less as measured by the contactless laser interference technique for measurement points in a measurement region surrounded by two concentric circles which is spaced from a center of a surface of the substrate by a predetermined distance. The waviness average height Wa is given by: Wa = 1 N ⁢ ∑ i = 1 N ⁢   | Xi - X _ | where Xi represents a measurement point value of each measurement point, {overscore (X)} representing an average value of the measurement point values, n representing the number of said measurement points.

    摘要翻译: 用于信息记录介质的基板具有通过非接触式激光干涉技术测量的微波平均高度Ra'不大于0.05微英寸,用于在基板表面上的测量区域内的测量点为50um□-4mm□。 微波平均高度Ra'由下式给出:其中xi表示每个测量点的测量点值,{overscore(x表示测量点值的平均值,n表示所述测量点的数量,或者,衬底具有 通过非接触式激光干涉技术测量的测量点在300mum至5mm之间的波纹度以及1.0nm或更小的波纹度平均高度Wa,测量点由与两个表面的中心间隔开的两个同心圆包围的测量区域 波纹平均高度Wa由下式给出:其中Xi表示每个测量点的测量点值,(超标(X表示测量点值的平均值,n表示所述测量点的数量) 。

    Process for treating high temperature corrosion resistant composite
surface
    38.
    发明授权
    Process for treating high temperature corrosion resistant composite surface 失效
    高温耐腐蚀复合材料表面处理工艺

    公开(公告)号:US5843587A

    公开(公告)日:1998-12-01

    申请号:US874252

    申请日:1997-06-13

    摘要: A process for treating a high temperature corrosion resistant composite surface is disclosed. The process includes the steps of forming a first alloy layer by coating a metallic base material with a NiCr alloy or a MCrAlY alloy (M being made of one or more selected from the group consisting of Fe, Ni and Co) with low pressure plasma spraying, forming a second alloy layer on the first alloy layer by coating the first layer with an alloy having identical composition with atmospheric plasma spraying and then subjecting these layers to thermal diffusion treatment in a vacuum furnace or an inert gas atmosphere furnace. Thus, high temperature corrosion resistance is provided for a metallic material used at high temperatures.

    摘要翻译: 公开了一种处理高温耐腐蚀复合材料表面的方法。 该方法包括通过用NiCr合金或MCrAlY合金(M由选自Fe,Ni和Co中的一种或多种制成)与金属基材进行低压等离子体喷涂而形成第一合金层的步骤 通过用具有相同组成的合金与大气等离子体喷涂一起涂覆第一层,然后在真空炉或惰性气体气氛炉中对这些层进行热扩散处理,在第一合金层上形成第二合金层。 因此,为高温下使用的金属材料提供高温耐腐蚀性。

    Commutator for a motor and method of manufacturing the same
    39.
    发明授权
    Commutator for a motor and method of manufacturing the same 失效
    电动机的通信器及其制造方法

    公开(公告)号:US5204574A

    公开(公告)日:1993-04-20

    申请号:US799109

    申请日:1991-11-27

    CPC分类号: H01R39/04 H01R43/08

    摘要: Four side walls surrounding a recess in the center of a commutator segment are extended to overhang toward the recess comprising claws and cut-and-raised protrusions, thereby ensuring that the commutator segment is securely engaged with the resin filled in the recess against any of the triaxial stresses due to centrifugal force, rotating force, and tensile force. The volume of cutting in the insulating resin at undercut portions is reduced. The internal and cut-and-raised protrusions are molded by cylindrically bending oriented progressive dies made of plate material.

    摘要翻译: 围绕换向片中心的凹部的四个侧壁延伸到朝向包括爪和切起凸起的凹部伸出,从而确保换向器片与填充在凹部中的树脂牢牢接合 由于离心力,旋转力和张力引起的三轴应力。 底切部分的绝缘树脂中的切割体积减小。 内部和切起的凸起由通过板材制成的圆柱形弯曲定向的渐进模具成型。

    Recording medium emergency release mechanism
    40.
    发明授权
    Recording medium emergency release mechanism 失效
    记录中等紧急释放机制

    公开(公告)号:US5198933A

    公开(公告)日:1993-03-30

    申请号:US666166

    申请日:1991-03-07

    IPC分类号: G11B17/04 G11B17/043

    CPC分类号: G11B17/0438

    摘要: The invention is an information reproduction apparatus provided with supporting means for supporting a recording medium, a drive source for moving the recording medium between the initial insertion position and the reproduction position by driving said supporting means, transmission means for transmitting the driving force of said drive source to said supporting means, retraction means operable to force a transmission element to retract from said transmission means, said transmission element being a part of said transmission means, and motion means operable to force the recording medium to move from the reproduction position to the initial insertion position under the condition that said transmission element is not engaged in said transmission means. In forcibly moving said supporting means, when the drive is out of operation, said supporting means are released from the drive force by means of said retraction means, freeing the supporting means from the resistance force of the drive force.