Device for Hardening a Mechanical Propulsion System Connection for a Mortar Round and Round Comprising Such a Connection
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United States of America Patent
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Issued Date -
Jun 7, 2012
app pub date -
Oct 17, 2011
filing date -
Dec 3, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A self-propelled munition having a munition rear body of circular cylindrical shape of diameter D1, along axis ZZ′. A propulsion system of the munition has a tubular casing of circular cross section, has an axis of revolution coincident with axis ZZ′, has an internal surface of diameter D1 able to slide over said munition rear body, and contains a pyrotechnic propulsion chamber. The munition includes a mechanical connection between the propulsion system and the munition using shear pins evenly distributed about axis ZZ′, a hardened mechanical connection having a ring groove around the munition rear body in a plane perpendicular to axis ZZ′, another ring groove on the internal surface of the propulsion system casing, a retaining ring inserted in the ring groove configured to expand into the other ring groove from diameter D1 to a diameter greater than diameter D1 to secure the propulsion system to the munition.
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