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    Armor
    1.
    发明授权
    Armor 失效
    盔甲

    公开(公告)号：US3705558A

    公开(公告)日：1972-12-12

    申请号：US3705558D

    申请日：1963-04-24

    Applicant: GEN MOTORS CORP

    Inventor： MCDOUGAL JOHN A ,  SCHWARTZWALDER KARL

    IPC: F41H5/04

    CPC classification number: F41H5/0421 ,  F41H5/0492 ,  Y10S428/911 ,  Y10T428/12486 ,  Y10T428/24149

    Abstract: 1. A lightweight armor plate comprising a mass of sintered hard substantially spherical ceramic balls disposed in contacting pyramidal relationship whereby each ball is in contact substantially with at least three other balls, and means for rigidly supporting said balls in said pyramidal relationship.

    Abstract translation: 1.一种轻质装甲板，其包括以接触锥形关系设置的大量烧结的硬质基本上球形的陶瓷球，其中每个球基本上与至少三个其它球接触，以及用于以所述金字塔形关系刚性支撑所述球的装置。

    Resistor composition
    2.
    发明授权
    Resistor composition 失效

    公开(公告)号：US3567658A

    公开(公告)日：1971-03-02

    申请号：US3567658D

    申请日：1967-12-21

    Applicant: GEN MOTORS CORP

    Inventor： WEBB RICHARD A ,  KESTEN PATRICK N ,  SCHWARTZWALDER KARL

    IPC: H01C1/00 ,  H01T13/41 ,  H01B1/06 ,  H01T13/20

    CPC classification number: H01C1/00 ,  H01T13/41

    Abstract: AN IMPROVED RESISTOR COMPOSITION FOR USE IN RESISTOR SPARK PLUGS AND OTHER ELECTRICAL DEVICES IS DISCLOSED. THE RESISTOR COMPOSITION CONTAINS A COMPOUND TAKEN FROM THE GROUP CONSISTING OF LITHIUM CARBONATE, ZINC CARBONATE, MAGNESIUM CABONATE AND SODIUM CARBONATE AND A METAL POWDER TAKENFROM THE GROUP CONSISTING OF ZINC, ANTIMONY AND TELLURIUM IN ADDITION TO THE CONVENTIONAL RESISTOR COMPOSITION INGREDIENTS. THE CARBONATE, FOR EXAMPLE, LITHIUM

    CARBONATE, AND THE METAL, FOR EXAMPLE, ZINC, COMBINE TO YIELD A STRONG RESISTOR MASS HAVING A LOW POROSITY WHICH BONDS TIGHTLY TO THE CENTER ELECTRODE HEAD IN THE SPARK PLUG INSULATOR CENTERBORE.

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