发明名称 Pick resistant cylinder lock
摘要 The specification describes a cylinder lock including a plurality of driver and associated follower pins movably residing in axially alignable bores in the lock core and cylinder, the lock also including spheres normally located in notches in the outer extremity of core cylinder wall, one or more of the spheres moving to a position between associated driver and follower pins preventing the alignment of these associated pins at the peripheral surface of the core when the follower or tumbler pins are manipulated without the use of a properly designed key.
申请公布号 US4151731(A) 申请公布日期 1979.05.01
申请号 US19780870671 申请日期 1978.01.19
申请人 TUCKER, JAMES I 发明人 TUCKER, JAMES I
分类号 E05B27/00;E05B27/04;(IPC1-7):E05B27/04 主分类号 E05B27/00
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