发明名称 |
Drop-bolt door lock assembly |
摘要 |
A high security drop-bolt lock assembly for a door includes a cylinder lock carried by a guard plate positionable on the outside of the door with the cylinder lock within the door, and a drop-bolt assembly on the inside of the door. The drop-bolt assembly is connected to protected studs extending from the guard plate to make a strong unitary construction extremely difficult to defeat and protecting the cylinder lock behind the guard plate and within the door.
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申请公布号 |
US4688409(A) |
申请公布日期 |
1987.08.25 |
申请号 |
US19860873256 |
申请日期 |
1986.06.06 |
申请人 |
MEDECO SECURITY LOCKS, INC. |
发明人 |
OLIVER, RONALD N.;ROOP, STEVIE C. |
分类号 |
E05B15/16;E05B63/12;(IPC1-7):E05B9/08;E05B63/00 |
主分类号 |
E05B15/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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