Igniting device for a propellant charge

• US 6,708,621 B1
• Filed: 10/13/2000
• Issued: 03/23/2004
• Est. Priority Date: 10/13/1999
• Status: Active Grant

• Current Assignee: Nexter Munitions
• Original Assignee: GIAT Industries
• Inventors: Desgland, Laurent, Berneau, Patrick, Forichon-Chaumet, Nicole
• Primary Examiner(s): KEITH, JACK W
• Application Number:
  US09/689,665
• Time in Patent Office: 1,257 Days
• Field of Search: 102/430-433, 102/439, 102/467, 102/469, 102/470, 102/700, 102/202
• US Class Current: 102/470
• CPC Class Codes: F42B 5/181 consisting of a combustible casing wall and a metal base; Connectors therefor
• CPC Class Codes: F42C 19/083 characterised by the shape and configuration of the base element embedded in the cartridge bottom, e.g. the housing for the squib or percussion cap
• CPC Class Codes: F42C 19/0834 Arrangements of a multiplicity of primers or detonators dispersed within a propellant charge for increased efficiency

Abstract

An ignition device for a propellant charge contained in a cylindrical case of a munition, said device comprising at least one linear energetic element and means to ignite said element, and characterised in that the ignition means comprise a tubular part, placed at a bottom cap part of the case and delimiting a chamber that communicates with a pyrotechnic igniting component, said tubular part comprising an axial hole intended to allow the passage and entry into the chamber of the linear igniting element or elements arranged substantially along the case axis.

Claims

1. A munition having an ignition device , said munition comprising:

a case containing a propellant charge;

a bottom cup portion of the case; and

an ignition device comprising;

at least one linear energetic element located substantially along a lengthwise axis of said case; and

means for firing said element, the firing means comprising a tubular part located at the bottom cup and delimiting a chamber that communicates with a pyrotechnic igniting component, said tubular part comprising an axial hole extending substantially along the lengthwise axis of said case and communicating with said chamber, said at least one linear energetic element extending from the propellant charge located in the case through the axial hole and into the chamber.

2. The munition having an ignition device according to claim 1, further comprising at least two linear energetic ignition elements, said elements being connected along at least part of their length to form a strand that is located substantially along the case lengthwise axis, through the axial hole, and at least partially inside chamber of the tubular part.

3. The munition having an ignition device according to claim 1, wherein the at least one energetic linear ignition element is attached to an inner cylindrical surface of the case.

4. The munition having an ignition device according to claim 1, further comprising a first fastening means, wherein

the cup obturates the bottom of the case,

said first fastening means integrally joins the cup with a cylindrical wall of the case, and

the tubular part is integral with the cup.

5. The munition having an ignition device according to claim 4, further comprising a base and a second fastening means for integrally joining the cup with the base.

6. The munition having an ignition device according to claim 5, wherein said base is attached to said cup by a threaded fastener.