Global Patent Index - EP 4058749 B1

EP 4058749 B1 20230510 - PYROTECHNIC OBJECT

Title (en)

PYROTECHNIC OBJECT

Title (de)

PYROTECHNISCHER GEGENSTAND

Title (fr)

OBJET PYROTECHNIQUE

Publication

EP 4058749 B1 20230510 (DE)

Application

EP 21802646 A 20211029

Priority

  • DE 102020129200 A 20201105
  • EP 2021080098 W 20211029

Abstract (en)

[origin: WO2022096385A1] The invention relates to a pyrotechnic object (2), more particularly a diversionary device, stun grenade (4) or ammunition, comprising: - a detonating device (6); - a delay chamber (16), which extends along a delay line (18) and in which a delay charge (20) is accommodated; and - at least one and preferably a plurality of effect chambers (26), in each of which an effect charge (28) to be detonated is held; wherein the delay chamber (16) is cross-connected to each effect chamber (26) by means of a respective cross-detonation opening (30), which branches off from the detonation chamber (16) and forms a cross-detonation line; wherein, in the case of a plurality of effect chambers (26), the multiple cross-detonation openings (30) lead off successively along the delay line (18) in the order of the effect charges (28) to be detonated. According to the invention, a cross-detonation charge (32) different from and chemically deviating from the effect charge (28) in question is provided in the cross-detonation opening (30) or in each of the cross-detonation openings (30) in order to at least partly close the cross-detonation opening (30) by means of the combustion residue (36) of the cross-detonation charge after the cross-detonation charge has burned off and thereby to reduce or damp propagation of a pressure surge, which arises as a result of the detonation of the effect charge (28) in the effect chamber (26) in question and acts on the delay chamber (16) via the cross-detonation opening (30) in question.

IPC 8 full level

F42C 9/10 (2006.01); F42B 3/16 (2006.01); F42B 12/36 (2006.01); F42C 9/14 (2006.01)

CPC (source: EP US)

F42B 3/16 (2013.01 - EP US); F42B 5/16 (2013.01 - US); F42C 9/10 (2013.01 - EP); F42B 12/36 (2013.01 - EP)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2022096385 A1 20220512; DE 102020129200 A1 20220505; EP 4058749 A1 20220921; EP 4058749 B1 20230510; US 2024118062 A1 20240411

DOCDB simple family (application)

EP 2021080098 W 20211029; DE 102020129200 A 20201105; EP 21802646 A 20211029; US 202318142651 A 20230503