发明名称 |
Security bars and barrier grids incorporating same |
摘要 |
A barrier grid, in the form of a detention window, as employed in jail cells, or the like, is described. It is characterized by security bars which comprise and outer tube and a central core member extending lengthwise thereof. The tubes of the bars are secured to the window's frame. The central core member comprises a structural rod, rotatably mounted on a structural portion of the window frame. Each core member also includes a plurality of ceramic tubular elements which serve to dull a saw where the outer tube has been cut through in an escape. The ceramic elements are encased within a plastic sheath which serves to preserve the structural integrity of the ceramic elements.
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申请公布号 |
US4669239(A) |
申请公布日期 |
1987.06.02 |
申请号 |
US19860828457 |
申请日期 |
1986.02.12 |
申请人 |
THE WILLIAM BAYLEY COMPANY |
发明人 |
MAGGS, LOU M.;BAUER, WALTER B. |
分类号 |
E06B9/01;(IPC1-7):E04H3/08 |
主分类号 |
E06B9/01 |
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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