Multi-layer panels for modular vault structure

Details Multi-layer panels for modular vault structure Multi-layer panels for modular vault structure

1992-06-17

1993-11-02

Gall, Lloyd A.

Safes, bank protection, or a related device

Shields and protectors

109 80, 109 84, E04B 202

Patent

active

052575837

ABSTRACT:
A lightweight, multilayered panel for use in a modular vault or safe structure has multiple layers of cross-grained wood boards secured together by a grid of hardened masonry nails. The nails are driven into the panel layers from both major face surfaces of the panel and are angled from the perpendicular of the major face surfaces of the panel to increase the probability of a penetrating instrument striking a nail during a penetration attempt. The panel is covered in a layer of sheet metal, and a layer of Kevlar or some other ballistic resistant material is placed on one or more major face surfaces. Rabbet edges on the panel allow an assembly with reinforced seams, and two single panels may be secured together to form a double reinforced vault panel.

REFERENCES:
patent: 77432 (1868-04-01), Marland
patent: 521710 (1894-06-01), Hagerman
patent: 620161 (1899-02-01), Mengis
patent: 1112382 (1914-09-01), Ramlose
patent: 1157469 (1915-10-01), Von Philp
patent: 3473281 (1969-10-01), Omholt
patent: 4350728 (1982-09-01), Huang et al.
patent: 4566237 (1986-01-01), Turner
patent: 4854622 (1989-08-01), Lozano
patent: 4872717 (1989-10-01), McEvoy et al.

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