US 9,752,857 B1Granted

Electric detonator with milled and unmilled DBX-1

AssigneeThe United States of America as represented by the Secretary of the Army

InventorsNeha Mehta, Gartung Cheng, Kin Yee, Karl Oyler, Akash Shah, John Marin, John W. Fronabarger, Michael D. Williams, Steven H. Marino, Pamela Tran

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Abstract

Lead free microdet electric detonators comprising a bridgewire having milled DBX-1 as a spot charge and unmilled DBX-1 as the intermediate material. Such improved microdet electric detonator is free of lead azide and lead styphnate, but with comparable stability, power and sensitivity to current lead-based M100 electric detonators.

Claims15

Dependent claims

An electric detonator comprising:

a metal bridgewire having a spot charge composition disposed thereon wherein said spot charge composition comprises milled DBX-1;
an intermediate charge comprising unmilled DBX-1;
and
output charge.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 15/015,460Filed 4 Feb 2016 · us provisional application
Priority: 14 Jul 2015
Granted: 5 Sep 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

F42B 3/124
Bridge initiators: characterised by the configuration or material of the bridge
F42B 3/128
Bridge initiators: characterised by the composition of the pyrotechnic material
F42B
Explosive charges

Family

Application62/192,262Us provisional application · filed 14 Jul 2015
US 9,752,857 B1This patent

From the US filing history. Foreign family members aren’t listed.

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