Dual voice coil shutter
    1.
    发明授权
    Dual voice coil shutter 失效
    双音圈快门

    公开(公告)号:US4839679A

    公开(公告)日:1989-06-13

    申请号:US64151

    申请日:1987-06-18

    摘要: A dual voice coil shutter is disclosed. The shutter mechanism is utilized in a stepper system, a laser system, or other carefully channeled light device to provide for opening and closing upon an optical path. The present invention is particularly useful for controlling passage of light hitting a photoresistive wafer through a reticle in a stepper system.The present invention provides a shutter type mechanism rotatably mounted about a common axis where the mechanism includes a pair of blades having a scissors-like arrangement adapted to simultaneously open and close upon an optical path. A voice type coil means is provided for each of the blades such that when a DC electrical current is applied to the coils, a rotation of the blades is effected about a single axis of rotation in a predetermined period of time. The rotation of the coils is coplanar. The present invention provides for net torque to the system that is in effect zero, which produces little or no mechanical operation in the rest of the structure which could otherwise cause inaccuracy in the mechanical positioning or delayed process time while waiting for oscillations to die out.

    摘要翻译: 公开了一种双音圈快门。 快门机构用于步进系统,激光系统或其他小心引导的光装置,以提供光路上的打开和关闭。 本发明特别可用于控制在步进系统中通过掩模版击中光致抗蚀剂晶片的光的通过。 本发明提供了一种围绕公共轴线可旋转地安装的挡板式机构,其中该机构包括一对具有适于在光路上同时打开和关闭的剪刀状布置的刀片。 为每个叶片提供声音线圈装置,使得当直流电流施加到线圈时,叶片的旋转在预定时间段内围绕单个旋转轴进行。 线圈的旋转是共面的。 本发明提供了对系统的净扭矩,其实际上为零,这在结构的其余部分中产生很少的或没有机械操作,否则可能在等待振荡消失的同时引起机械定位或延迟的处理时间的不准确性。

    Bonding aluminum cladding to random glass mat reinforced polypropylene
sheet
    2.
    发明授权
    Bonding aluminum cladding to random glass mat reinforced polypropylene sheet 失效
    将铝包层粘合到随机玻璃纤维增​​强聚丙烯片材上

    公开(公告)号:US5246523A

    公开(公告)日:1993-09-21

    申请号:US814941

    申请日:1991-12-30

    摘要: The present invention relates to a method for making a composite article by applying an adhesive composition to one side of each of two foils of metal. The adhesive composition contains an ethylene/acrylic acid copolymer and linear low density polyethylene. A sheet of fiber-reinforced polypropylene is subjected to treating with a coating of a thermoplastic styrene/diene block copolymer. Finally, the adhesive coated metal foils are mated on under elevated temperature and pressure.

    摘要翻译: 本发明涉及一种通过在两片金属箔的一面上涂布粘合剂组合物来制造复合制品的方法。 粘合剂组合物含有乙烯/丙烯酸共聚物和线性低密度聚乙烯。 将一片纤维增强聚丙烯用热塑性苯乙烯/二烯嵌段共聚物的涂层进行处理。 最后,粘合剂涂覆的金属箔在升高的温度和压力下配合。

    Tubular varistor arrangement
    4.
    发明授权
    Tubular varistor arrangement 失效
    管状变阻器布置

    公开(公告)号:US4638284A

    公开(公告)日:1987-01-20

    申请号:US678726

    申请日:1984-12-05

    IPC分类号: H01C7/10 H01C7/12 H01R13/53

    CPC分类号: H01C7/12 H01R13/53

    摘要: A tubular varistor arrangement, particularly suitable for use in electrical connectors of circular cross-section, attains an electrical breakdown voltage equalling the cumulation of the breakdown voltages of multiple varistor sections of the arrangement. The varistor arrangement includes a plurality of tubular varistor sections that are interconnected in electrical serial relationship.

    摘要翻译: 特别适用于圆形横截面的电连接器的管状变阻器装置获得等于该装置的多个变阻器部分的击穿电压的累积的电击穿电压。 压敏电阻装置包括以电串联方式互连的多个管状变阻器部分。