Claims
- 1. A cartridge with an electrothermal ignition device, comprising:a cartridge including a cylindrical combustible sleeve that is at least partially filled with a propellant-charge powder, and a metallic base that is connected to one end of the sleeve and forms a bottom of the cartridge; a high-voltage electrode extending through the base and electrically insulated therefrom; at least one electrically-conductive wire, which extends axially through the first propellant-charge powder, connected between the high-voltage electrode and an annular contact disposed adjacent another end of the sleeve; and, a pyrotechnical ignition mixture coating the at least one electrically-conductive wire, at least in a partial region along its length.
- 2. A cartridge according to claim 1 wherein the at least one wire has a non homogeneous diameter along its length.
- 3. A cartridge according to claim 1 wherein the at least one wire has a conically widening diameter along its length.
- 4. A cartridge according to claim 1 wherein the at least one wire has a step-wise gradually increasing diameter along its length.
- 5. The ignition device according to claim 1, wherein the pyrotechnical ignition mixture is a mixture on a potassium perchlorate-zirconium (KClO4—Zr) base.
- 6. The ignition device according to claim 5, wherein the potassium perchlorate-zirconium mixture contains a polymer binder from the family of fluoroalkanes.
Priority Claims (1)
Number |
Date |
Country |
Kind |
100 20 019 |
Apr 2000 |
DE |
|
CROSS REFERENCE TO RELATED APPLICATION
This application is related to concurrently filed commonly owned allowed U.S. application Ser. No. 09/839,675 corresponding to German Patent Application No. 100 020 020.6, filed Apr. 22, 2000.
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