Special receptacle or package – For ammunition
Patent
1996-08-09
1998-07-14
Sewell, Paul T.
Special receptacle or package
For ammunition
206317, 206592, 220 424, 220 433, F42B 3700
Patent
active
057790310
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The technical scope of the present invention is that of containers for large caliber munitions.
2. Description of Related Art
Large caliber munitions are characterized by their bulk as they have a high mass (15 to 30 kg) and are very long (1 to 2 m). These munitions are composed of a projectile and a propellant charge contained in a case, combustible or not, crimped onto the projectile. The projectiles can be fin-stabilized, shaped charge projectiles, incendiary projectiles, or training explosives. Admittedly, these munitions are not very easy to handle and require protection. The types of protection currently in use are generally constituted by containers incorporating wedging means for the munition and are perfectly well-adapted to everyday handling.
By way of illustration, reference may be made to French Patents: 1 601 106, 2 597 075, 2 477 698, 2 369 180, 2 685 469 which describe containers of this type. However, they have the serious disadvantage of not protecting the munition against excessive stress, and this problem must at all costs be resolved with respect to the transportation of dangerous substances.
Wooden containers are not watertight and provide no shock-absorption in the event of a fall. Metal containers provide next to no shock-absorption in the event of a fall. This is all the more disadvantageous in that the inner volumes are more and more restricted due to the constraints imposed on the outer dimensions with regard to transportation and due to the system of palletizing which thus limits substantially the possible volumes of wedging materials. Moreover, they require painting which does not remove the likelihood of corrosion. Containers made of synthetic materials provide good performances when the stress remains moderate such as is the case, for example, of a fall of 2.10 m in height at a temperature of between -40.degree. C to +63.degree. C. As a general rule, for this height, the performances of the munition are entirely preserved by this plastic container.
But, when the stress is greater, for example, during a fall of 12 m in temperatures of between -40.degree. C. to +60.degree. C., a significant initiation rate may frequently be noted, which is not acceptable for the safety of the users.
SUMMARY OF THE INVENTION
The aim of the invention is to propose a container to protect a munition against excessive stress which prevents any accidental initiation of the munition.
The subject of the invention is thus a container for large caliber munitions of the type structured by an outer envelope closed by a cap. The container has an inner envelope demarcating means to prevent the translation of the projectile of the munition with respect to a case enclosing the munition load and locking means applied to the base of the munition, the locking means immobilizing the projectile along the three axes of the munition in the inner envelope (the inner envelope also having a tapered outer part on one end and a cylindrical part extended by a radial bottom on the other), a head wedge placed in the outer envelope fitted with a recess demarcating a tapered inner profile which matches the outer profile of the inner envelope, a side wedge placed between the inner and outer envelopes, and a bottom wedge applied against the radial bottom of the inner envelope and compressed by the cap.
According to one characteristic of the invention, the head wedge has a cylindrical inner profile extending from the inner tapered profile.
Applied to a fin-stabilized munition, the means to prevent translation, according to one characteristic of the invention, are composed of a first means to prevent the translation of the projectile of the munition with respect to the case enclosing the munition load and a second means to prevent translation of the load with respect to the projectile. The blocking means are also constituted by circular supports bearing firstly on the projectile and secondly on the load envelope, for example, the circular supports are marked out by folds of
REFERENCES:
patent: 2052491 (1936-08-01), Rueppel
patent: 2308480 (1943-01-01), Abbott et al.
patent: 4055247 (1977-10-01), Benedick et al.
patent: 4159764 (1979-07-01), Schinke
patent: 4279339 (1981-07-01), Gotter
patent: 4347929 (1982-09-01), Poe et al.
patent: 4722436 (1988-02-01), Moraine
patent: 4762222 (1988-08-01), Martin
patent: 5492243 (1996-02-01), Brandhorst
Capitani Gilles
Ferrandez Andre
Hazard Yves
Moraine Gerard
Bui Luan K.
Sewell Paul T.
Tiag Industries
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