Security bars and barrier grids incorporating same

Details Security bars and barrier grids incorporating same Security bars and barrier grids incorporating same

1986-02-12

1987-06-02

Friedman, Carl D.

Static structures (e.g., buildings)

Jail-type structure

52725, 109 495, E04H 308

Patent

active

046692398

ABSTRACT:
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.

REFERENCES:
patent: 90219 (1869-05-01), Baker
patent: 207476 (1878-08-01), Baker
patent: 2156579 (1938-10-01), Bayon

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