Dec 9, 2025

US12492887 - Miniature electronic safe arm device

Disclosed is a miniature electronic safe arm device (MESAD) kit. The MESAD kit comprises a munition adapter. a high explosive booster charge. a low energy exploding foil initiator (LEEFI) detonator, and a warhead initiation module. The munition adapter comprises a male threaded portion configured to thread into a female threaded portion at an end of a munition shell. The MESAD kit enables conversion of existing stockpiles of inventoried legacy munitions in the field. into UAS payloads by replacing legacy mechanical and electro-mechanical fuzes used on these legacy munitions with a MESAD assembly.

Assignee: Breault Research Organization, Inc.
Inventors: John J. Spilotro, John D. Willett
Filing date: 2022-10-13

The Miniature Electronic Safe Arm Device (MESAD) kit allows for the conversion of legacy munitions into unmanned aerial system (UAS) payloads by replacing traditional fuzes with an electronic assembly. It includes a specialized munition adapter, a high explosive booster charge, a low energy exploding foil initiator, and a warhead initiation module.

Claim 1

1 . A miniature electronic safe arm device (MESAD) kit comprising: a unitary T-shape munition adapter, wherein the unitary T-shape munition adapter is configured to mate with a female portion of a munition shell, wherein the unitary T-shape munition adapter has a bolt portion and a T-portion, wherein the T-portion is perpendicular to the bolt portion, wherein the bolt portion has integral threads thereon configured to mate directly with integral threads of the female portion of the munition shell; a high explosive booster charge; a low energy exploding foil initiator (LEEFI) detonator; and a warhead initiation module (WIM). a unitary T-shape munition adapter, wherein the unitary T-shape munition adapter is configured to mate with a female portion of a munition shell, wherein the unitary T-shape munition adapter has a bolt portion and a T-portion, wherein the T-portion is perpendicular to the bolt portion, wherein the bolt portion has integral threads thereon configured to mate directly with integral threads of the female portion of the munition shell; a high explosive booster charge; a low energy exploding foil initiator (LEEFI) detonator; and a warhead initiation module (WIM).

Google Patents

https://patents.google.com/patent/US12492887

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12492887