Ammunition and explosives – Drop bombs – With drop-retarding means
Reexamination Certificate
1999-09-02
2001-07-03
Jordan, Charles T. (Department: 3641)
Ammunition and explosives
Drop bombs
With drop-retarding means
C089S001510, C089S001540, C089S001550
Reexamination Certificate
active
06253681
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application claims the priority of German Application No. 198 42 541.4 filed Sep. 17, 1998, which is incorporated herein by reference.
BACKGROUND OF THE INVENTION
This invention relates to a device for securing a stabilizing band to the rear portion of an air-dropped ammunition, such as a bomblet. The stabilizing band is folded into loops and is integrated into the rear part of the ammunition and has overlapping ends which are firmly connected with one end of a firing pin disposed in the rear portion of the ammunition.
A device for securing a stabilizing band of the above-outlined type is disclosed in published European Application 0 681 157. The stabilizing band disclosed therein is secured by means of a fit about a stable, face-to-face engaging small plate at the lower end of a bomblet (air-dropped ammunition). It is a disadvantage of such a prior art arrangement that because of the abrupt pulling load exerted on the deploying stabilizing band, the sharp edges of the small plate cut into the stabilizing band causing cuts or severance thereof.
Another securing device for a stabilizing band is disclosed in European Patent No. 0 538 083 which discloses an inwardly bent, essentially rectangular small, resilient plate which is shorter than the diameter of the bomblet and which is secured to the rearward portion thereof. It is the main purpose of such a small plate to effect a spreading (expansion) of the stabilizing band. For such a purpose the small plate has to be arranged radially with respect to the stabilizing band. It is a disadvantage of such a construction that the resilient plate is capable of taking up only very small tension forces so that the plate may buckle or break.
SUMMARY OF THE INVENTION
It is an object of the invention to provide an improved securing device of the above-discussed type which prevents cuts in the stabilizing band and by means of which force peaks are extenuated.
This object and others to become apparent as the specification progresses, are accomplished by the invention, according to which, briefly stated, the air-dropped ammunition includes an ammunition body having a rearward portion; a firing pin accommodated in the rearward portion; a stabilizing band being received in a folded state at least partially in the rearward portion of the ammunition body; and a device for securing the stabilizing band to the firing pin. The device includes a disk having an upturned rim. The disk engages face-to-face one of two overlapping ends of the stabilizing band, and the upturned rim is oriented away from the overlapping ends. The overlapping ends and the disk are firmly attached to the firing pin.
The invention is based on the principle to insert a rigid component having an upturned rim which retains a satisfactory deformability and energy attenuation despite large forces. According to a preferred embodiment, the component is a dished (bowl-shaped) disk. The advantage of such an embodiment resides in its simple manufacture and assembly.
REFERENCES:
patent: 4762066 (1988-08-01), Rudenauer et al.
patent: 5016533 (1991-05-01), Borngen
patent: 5048419 (1991-09-01), Skowasch
patent: 5153371 (1992-10-01), Grau et al.
patent: 5251562 (1993-10-01), Chemiere et al.
patent: 2 672 673 (1992-08-01), None
Roosmann Karlheinz
Weber Adolf
DiCostanzo Nicholas
Jordan Charles T.
Kelemen Gabor J.
Rheinmetal W & M. GmbH
Venable
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