Bishara S Elmasri

US Patent:

8550004, Oct 8, 2013

Filed:

Jun 4, 2012

Appl. No.:

13/487688

Inventors:

Timothy Woo - Flushing NY, US
Leon Moy - Montclair NJ, US
Bishara Elmasri - Landing NJ, US
Christina Morales - Mine Hill NJ, US
Alan N. Cohen - Wharton NJ, US
Daniel Lee Prillaman - Montclair NJ, US

Assignee:

The United States of America as Represented by the Secretary of the Army - Washington DC

International Classification:

F42B 39/20

US Classification:

102430, 102481

Abstract:

An IM type steel cartridge whose base contains a central bore there through—within which bore is a steel base plug holding a primer cup, the base plug being held in place by a low melt, 220 to 250 degree F. melt eutectic solder—wherein, if the cartridge is subjected to an unforeseen thermal or kinetic event, the solder will melt, the base plug ejected, and the propellant will vent rather than explode. The solder bond between the base plug and the cartridge case within which it is held is capable of resisting the from about 72,000, to up to 90,000 psi, force generated within the firing chamber of the weapon by the ignition and firing of the cartridge.

US Patent:

8381656, Feb 26, 2013

Filed:

Sep 9, 2011

Appl. No.:

13/228735

Inventors:

Timothy Woo - Flushing NY, US
Leon Moy - Montclair NJ, US
Bishara Elmasri - Landing NJ, US
Christina Morales - Mine Hill NJ, US

Assignee:

The United States of America as Represented by the Secretary of the Army - Washington DC

International Classification:

F41A 9/00

US Classification:

102481

Abstract:

To hinder activation caused by unplanned stimuli, a munition may include first and second discrete, separable parts. The first and second parts may include interlocking components to prevent relative axial translation of the first and second parts. The first and second parts may be torsionally biased in opposite directions. A binder with a low melting temperature may fix the first and second parts together to prevent the torsional bias from rotating the first and second parts in the opposite directions. When the binder melts, the torsional bias may cause the first part to rotate with respect to the second part. Relative rotation of the first and second parts may allow relative axial translation of the first and second parts.