Light weight vault door
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United States of America Patent
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Dec 25, 1984
Grant Date -
N/A
app pub date -
Jul 29, 1982
filing date -
Sep 16, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention provides a panel for use in doors or walls of vaults or strong rooms which is lighter in weight than conventional materials while providing comparable attack resistance. The panel consists of a layer of ceramic tiles adhesively secured to an energy-absorbing backing layer. Both faces of the panel are covered by sheet metal, and when the panel is used in constructing a door, the edges of the door also have a suitable metallic covering.
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