Closure device for locks
    71.
    发明授权
    Closure device for locks 失效
    闭锁装置

    公开(公告)号:US3740981A

    公开(公告)日:1973-06-26

    申请号:US3740981D

    申请日:1971-04-27

    申请人: HUDSON LOCK INC

    发明人: PATRIQUIN G

    摘要: An integrally formed closure unit including an annular base, a cap and a flexible connector as member portions. An annular seal surface on the base is dimensionally mated to a mating surface on the cap so as to be slidably engagable therewith. After mounting of the annular base around an opening to be protected, the cap can be manipulated into either open or closed positions.