Safes – bank protection – or a related device – Combined – With means to prevent successful use of explosives
Patent
1988-07-13
1990-01-30
Wilson, Neill R.
Safes, bank protection, or a related device
Combined
With means to prevent successful use of explosives
109 495, 109 79, 52 1, 52463, 49DIG1, E05G 300, E06B 512, E06B 900, E04H 900
Patent
active
048966134
ABSTRACT:
A blast resistant composite section comprises a base section (1), an intermediate section (2), and a solid, bombardment-inhibiting cover section (3). On a side toward the intermediate section (2) the cover section (3) is provided with depressions which form in each instance a groove (9) whose cross-section widens outward in wedge form. Elastically pivotable projections(8) integrally formed with the intermediate section (2) each engage in a groove (9) and are provided in the region of their free edge with an edge (10) of nose-shaped cross section protruding to one side. In the region of the bottom of each groove (9) a lateral enlargement (11) adapted to the cross section of the edge (10) is provided. Due to this design, the cover section (3) can be non-releasably connected to the intermediate section (2) by forces exterted on the cover in a direction perpendicular to the length of the section.
REFERENCES:
patent: 3574985 (1971-04-01), Pierce
patent: 4117640 (1978-10-01), Vanderstar
patent: 4428171 (1984-01-01), Harbin
patent: 4461133 (1984-07-01), Laroche
patent: 4625659 (1986-12-01), Saelzer
Colvin Arthur B.
Wilson Neill R.
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