Smoke munition

Patent metadata

Field	Value
Publication number	US-10422609-B2
Application number	US-201715836137-A
Country	US
Kind code	B2
Filing date	Dec 8, 2017
Priority date	Jun 8, 2015
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

A smoke munition or smoke grenade which can be fired from a launcher, for example a grenade launcher, and has at least one active charge for producing smoke as a protection for ships. To achieve the effect that the active charge of the smoke grenade can be delivered quickly and safely for the ship's crew and the active compound thereof can be converted completely into smoke even after hitting the water, the invention proposes providing the active charge with a floating aid, which can be deployed before the active charge hits the water and prevents the active charge from sinking and prevents the active compound that produces the smoke from becoming wet.

First claim

What is claimed is:

1. A smoke munition comprising:
at least one active charge for producing smoke as a protection for ships;
a grenade casing that includes the at least one active charge, the at least one active charge having at least one active compound that produces smoke;
an inflatable floating aid arranged in a front region of the grenade casing;
an igniting device;
an expulsion charge;
a first pyrotechnic delay element; and
a priming charge,
wherein the igniting device ignites the expulsion charge of the at least one active charge, the expulsion charge ignites the first pyrotechnic delay element, and the first pyrotechnic delay element ignites the priming charge of the at least one active compound, and
wherein the igniting device, the expulsion charge, the first pyrotechnic delay element and the priming charge are arranged at a rear region of the grenade casing.

2. The smoke munition as claimed in claim 1 , further comprising a second pyrotechnic delay element that is ignited by the priming charge, wherein a gas-producing mixture is arranged inside the at least one active charge such that the gas-producing mixture is activated by the priming charge of the at least one active compound via the second pyrotechnic delay element.

3. The smoke munition as claimed in claim 1 , wherein the inflatable floating aid is formed such that in an inflated state the inflatable floating aid prevents the at least one active charge from sinking until a portion of the at least one active compound that produces smoke has converted into smoke.

4. The smoke munition as claimed in claim 1 , wherein, in an inflated state, the inflatable floating aid is tire-shaped, sphere-shaped or cushion-shaped.

5. The smoke munition as claimed in claim 1 , wherein a telescopic tube device, in a pushed-in state, is arranged in the front region of the grenade casing.

6. A smoke munition comprising:
at least one active charge for producing smoke as a protection for ships;
a grenade casing that includes the at least one active charge, the at least one active charge having at least one active compound that produces smoke; and
an inflatable floating aid arranged in a front region of the grenade casing,
wherein a telescopic tube device, in a pushed-in state, is arranged in the front region of the grenade casing, and
wherein the telescopic tube device has at least two cylindrical tubes enclosed in the pushed-in state by the inflatable floating aid and is non-positively connected to the inflatable floating aid such that, when the inflatable floating aid inflates, the inflatable floating aid actuates the telescopic tube device into a pushed-apart state and combustion products of the at least one active compound that produce the smoke escape into the atmosphere via a space inside the at least two cylindrical tubes of the telescopic tube device.

7. The smoke munition as claimed in claim 5 , wherein the smoke munition has, in the front region, a widening in the form of a housing.

8. A smoke munition comprising:
at least one active charge for producing smoke as a protection for ships;
a grenade casing that includes the at least one active charge, the at least one active charge having at least one active compound that produces smoke; and
an inflatable floating aid arranged in a front region of the grenade casing,
wherein the at least one active charge has a central middle tube formed of a heat-resistant material that extends in a longitudinal direction and is enclosed by the at least one active compound, and wherein an expulsion charge, a first pyrotechnic delay element, and a priming charge are arranged axially one behind the other in the central middle tube, with the first pyrotechnic delay element being arranged between the expulsion charge and the priming charge.

9. The smoke munition as claimed in claim 8 , wherein the central middle tube has at a front end an opening for the ignition of a second pyrotechnic delay element.

10. The smoke munition as claimed in claim 1 , wherein the smoke munition is a smoke grenade that is adapted to be fired from a conventional launcher.

11. The smoke munition as claimed in claim 2 , wherein the second pyrotechnic delay element is arranged at the front region of the grenade casing.

12. The smoke munition as claimed in claim 8 , wherein the expulsion charge ignites the first pyrotechnic delay element and the first pyrotechnic delay element ignites the priming charge.

Assignees

• Rheinmetall Waffe Munition Gmbh

Inventors

• Raupp Karl
• Kopp Lothar-Georg
• Lauer Stefan

Classifications

• F42B5/155 Primary

  Smoke-pot projectors, e.g. arranged on vehicles · CPC title

• F42B12/48

  smoke-producing {, e.g. infrared clouds} · CPC title

• F42B10/48

  Range-reducing, destabilising or braking arrangements, {e.g. impact-braking arrangements}; Fall-retarding means, {e.g. balloons, rockets for braking or fall-retarding}(F42B10/34 takes precedence) · CPC title

• F42B12/34

  expanding before or on impact, i.e. of dumdum or mushroom type · CPC title