发明名称 |
Combination locks with electro-optical silent alarm system |
摘要 |
A combination lock of the dial operated tumbler wheel type comprising lock mechanism components including a fence lever and rotatable members to be rotatably positioned responsive to rotation of a dial, the rotatable members including peripherally gated tumbler wheels and a drive cam driven from the dial, and electro-optical light sensing and electrical signalling means for producing sensible indications at a remote monitoring station signifying movement of components of the combination lock mechanism. This means comprises a marking having optically distinctive reflectivity properties on a component of the lock mechanism such as the driving cam and/or a tumbler wheel and/or the fence lever and optical sensor means positioned to receive light from the optically distinctive marking electrical signal signifying movement of the optically distinctive marking.
|
申请公布号 |
US4455552(A) |
申请公布日期 |
1984.06.19 |
申请号 |
US19810324821 |
申请日期 |
1981.11.24 |
申请人 |
SARGENT & GREENLEAF, INC. |
发明人 |
GREINER, GARRY C.;SHELLEY, JR., JOE A. |
分类号 |
E05B45/06;(IPC1-7):E05B45/06 |
主分类号 |
E05B45/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|