Method for producing a propellant

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United States of America Patent

SERIAL NO

11358049

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Abstract

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The proposed propellant powder exhibits a temperature-independent burning behavior and high ballistic stability. The production process starts with a perforated bulk powder grain, which is processed inside a mixing apparatus with a solid material, a plug-stabilizing moderator or deterrent (if necessary also a radical initiator) and a low-viscous liquid. With a minimum amount of solid material, moderator or deterrent and liquid and because of the continuous mixing, the form function is influenced in such a way that the gas-formation rate is practically independent of the propellant powder temperature. As a result, the muzzle energy at the normal temperature and, above all, at a low deployment temperature can be increased markedly as compared to that of a standard propellant powder. With the propellant powder according to the invention, for which the grain has at least one perforation that discharges with an opening to the outside surface of the grain, wherein the opening is closed off with a plug, the plug has a temperature-dependent mobility. As a result, the plug has a higher mobility for a lower deployment temperature than for a higher deployment temperature, so that the plug permits a faster hole burning at a lower deployment temperature than at a higher deployment temperature.

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Patent Owner(s)

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NITROCHEMIE WIMMIS AG3752 WIMMIS

International Classification(s)

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  • 2006 Application Filing Year
  • C06B Class
  • 49 Applications Filed
  • 27 Patents Issued To-Date
  • 55.11 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2006200720082009201020112012201320142015201620170255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fahrni, Markus Laengenbuehl, CH 2 2
Huber, Alexander Bruckmuehl, DE 42 80
Jeck-Prosch, Ulrike Muehldorf, DE 4 4
Ossola, Bruno Faulensee, CH 5 8
Ryf, Kurt Wimmis, CH 5 8
Steinmann, Alfred Praroman, CH 39 247
Vogelsanger, Beat Thun, CH 7 9

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges7324301 - 1011 - 2021 - 300246810121416182022242628303234

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