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Pyrotechnic device

Inactive Publication Date: 2015-12-31
DREW DEFENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patent is to develop a pyrotechnic device that reduces the risk of damaging the parachute during the opening or deployment phase in a simple, space-saving and cost-effective manner.

Problems solved by technology

In particular, only at least one parachute line is extensible, while at least one or all the other parachute lines are inextensible or virtually inextensible.
This initially leads only to a slight delay in the dropping speed of the parachute with the signalling, illumination and / or observational means suspended therefrom.

Method used

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Examples

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Embodiment Construction

[0034]The different exemplary embodiments of the invention are explained below using the example of a hand-held parachute signalling rocket or fired parachute signalling munitions.

[0035]The parachute signalling rockets and the parachute signalling munitions in all exemplary embodiments exhibit a casing with a charge or rocket motor which fires the parachute signalling rocket or the parachute signalling munitions up into the air.

[0036]In all exemplary embodiments, a folded-together parachute with at least one signalling means fastened thereto and, if necessary, an expelling charge and a detonating agent are disposed in the casing above the propellant or rocket motor.

[0037]In FIGS. 1 to 6 only the parachute 10 and the signalling means 11 are shown after firing up and expulsion from the casing, namely both in the partially deployed state (FIGS. 2 and 3) and also in the completely deployed, entirely opened state (FIGS. 1 and 4 to 6).

[0038]The parachute 10 in the first exemplary embodime...

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Abstract

Parachutes for signalling rockets, for example, open in a jerky manner, as a result of which the suspension lines (13) are exposed to a heavy load. The invention envisages two suspension lines (14) configured in an extensible, particularly rubber-band-like manner, as a result of which the initially effective parachute surface area is reduced, which causes the parachute canopy (12) of the parachute (10) to open more slowly than with previous parachutes (10), which in turn reduces the opening jerk of the parachute (10). In this way, the suspension lines (13, 14) in particular, but also the parachute canopy (12) of the parachute (10), are subject to less load.

Description

STATEMENT OF RELATED APPLICATIONS[0001]This patent application claims priority on and the benefit of German Patent Application No. DE 10 2014 009 168.6 having a filing date of 25 Jun. 2014 and German Patent Application No. DE 10 2014 016 951.0 having a filing date of 18 Nov. 2014.BACKGROUND OF THE INVENTION[0002]1. Technical Field[0003]The invention relates to a pyrotechnic device having a rocket or a projectile, a parachute with parachute lines, and at least one signalling, illumination and / or observational means assigned to the parachute.[0004]2. Prior Art[0005]The pyrotechnic devices referred to here are hand-fired parachute rockets and also fired parachute cartridges or parachute munitions with signalling means, illumination means and / or observational means. The observational means may be cameras, sensors or also measuring probes. The signalling, illumination or observational means along with a parachute assigned to each of them are fired up or on a ballistics trajectory by the ...

Claims

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Application Information

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IPC IPC(8): F42B4/12
CPCF42B4/12F42B4/28F42B10/56B64D17/24
Inventor RUNCK, ANDREAS
Owner DREW DEFENSE
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