Glass lamp base with side hole
    2.
    发明授权
    Glass lamp base with side hole 失效
    玻璃灯底座带侧孔

    公开(公告)号:US4997467A

    公开(公告)日:1991-03-05

    申请号:US514928

    申请日:1990-04-26

    IPC分类号: C03B9/32 C03B9/347

    CPC分类号: C03B9/32 C03B9/347

    摘要: A hollow glass lamp base is molded with a sidewall having a tapered, truncated dimple in it. The inner end of the dimple is knocked out, after the base has been annealed, to provide an opening so that the electric cord can extend out through the sidewall of the glass base. The need for an attached metal base and a connecting center tube is obviated.

    摘要翻译: 中空玻璃灯座被模制成具有在其中具有锥形的截头凹坑的侧壁。 在基座退火之后,凹坑的内端被敲出以提供开口,使得电线可以延伸穿过玻璃基座的侧壁。 消除了附着金属基座和连接中心管的需要。