Explosion-suppressing structure

Ammunition and explosives – Blasting – Mat or deflector

Reexamination Certificate

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Details

C102S323000, C102S324000

Reexamination Certificate

active

06302026

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to an explosion-suppressing structure and can in particular be used to protect persons or equipment from munitions exploded under controlled conditions.
BACKGROUND OF THE INVENTION
In my British Patent Application No. 2,314,614A, I described an explosion-suppressing barrier comprising a rigid support member such as a wall of blocks or tanks, rupturable liquid-filled containers being supported on the blocks in the form of bags and/or being defined by cavities in the blocks. Examples of these barriers are shown in
FIGS. 1
to
3
.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an explosion-suppressing structure with enhanced protective qualities.
Accordingly, the invention provides an explosion-suppressing structure including at least one explosion-suppressing barrier comprising a permanently rigid support member defining or supporting at least one rupturable liquid-filled container, and further including a roof member spanning the top of the barrier or the tops of at least two of the barriers, the roof member supporting or defining at least one further rupturable liquid-filled container, the liquid being aerozolized in use.
Preferably, the support member comprises a wall of blocks or tanks, which may be of polystyrene, polyurethane or glass-reinforced plastic and which may comprise cavities filled with liquid, optionally contained in rupturable bags, and/or over which rupturable liquid-filled bags may be suspended.
The invention also provides an explosion-suppressing roof member supporting or defining at least one rupturable liquid-filled container, the liquid being aerozolized in use. The roof member may comprise a hollow body of uniform cross-section, and the liquid therein is optionally contained in at least one rupturable bag. The roof member is preferably rigid. A plurality of roof members may be placed adjacent one another to form a roof of the structure. Further rupturable bags of liquid may be placed on top of the or each roof member.
In an alternative embodiment, the roof member comprises a sheet of fabric, preferably reticulated fabric such as a net, tensioned over the top of the barrier(s) and supporting at least one rupturable liquid-filled container (preferably a plurality of rupturable water-filled bags). It is preferable, and in certain circumstances essential, that the structure surrounds a location at which explosive material can be located and from which location any straight line running to the exterior of the structure passes through either the explosion-suppressing barrier or the explosion-suppressing roof member. Embodiments of the invention, therefore, include a stockade in the form of a broken “FIG. 6” or a stockade having an aperture facing a separate barrier. These embodiments allow access into and egress from the structure.


REFERENCES:
patent: 3958286 (1976-05-01), Rodinsky
patent: 4836079 (1989-06-01), Barrett
patent: 4836939 (1989-06-01), Hendrickson
patent: 4905601 (1990-03-01), Gabriel et al.
patent: 5394786 (1995-03-01), Gettle et al.
patent: 5719350 (1998-02-01), Parkes et al.
patent: 0276918 A1 (1988-01-01), None
patent: 1414682 (1973-03-01), None
patent: 2161185 A (1984-03-01), None
patent: 2209775 A (1987-09-01), None
patent: 2289750 A (1994-09-01), None
patent: 2314614 A (1997-06-01), None
Search Report under Section 17 of Patents Act of 1977 re Application No. GB 9901058.9, dated May 13, 1999.

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