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US 11,320,247 B2Granted
Stand-off breaching round
AssigneeThe Secretary of State for Defence
InventorLee Jonathan Thornhill
Life of this patent
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AssigneeThe Secretary of State for Defence
InventorLee Jonathan Thornhill
Estimating the term…
A stand-off breaching device (20) for breaching a barrier, comprising a housing (21), an explosive main charge (24) having a barrier-end (25) and a rear-end (26), a detonator (29), and means for initiating the detonator (27) when the explosive main charge (24) is at a preselected distance from a barrier. The detonator (29) is configured to detonate explosive main charge (24) at the rear-end (26) such that the resultant detonation wave propagates through the explosive main charge (24) towards the barrier-end (25) and the barrier being breached. This configuration provides more efficient transfer of explosively generated overpressure towards a barrier, thereby enabling the use of explosive main charges (24) with reduced mass, and the associated improvements in operator safety. The breaching device (20) is particularly suited to use in door breaching operations.
A stand-off breaching device for breaching a barrier, comprising a housing, an explosive main charge having a barrier-end and a rear-end, a detonator, and means for initiating the detonator when the explosive main charge is at a preselected distance from a barrier, wherein the detonator is configured to detonate the explosive main charge at the rear-end, such that in-use a barrier can be breached by an explosively generated overpressure.
A method of breaching a barrier, the method comprising the steps of:
An explosive main charge for use in stand-off barrier breaching, comprising a conically formed explosive charge having a substantially circular end and a cone-apex, such that in-use the explosive main charge is arrangeable to have the substantially circular end facing a barrier to be breached, such that the main charge is configured to detonate at the cone-apex to generate an overpressure directed towards the barrier, wherein the explosive main charge further comprises a charge extension extending from the substantially circular end, such that in-use the overpressure directed towards the barrier has a predetermined pressure profile.
Dependencies are inferred from the claim text.