Cartridge
AssigneeThe United States of America as represented by the Secretary of the Army
InventorsBruce W. Travor, Lennord L. Pitney
Life of this patent
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Abstract
A gas generating cartridge case having a close tolerance delay ignition u intermediate ignition train elements and which functions with reliable accuracy and is insensitive to large temperature variations or extremes. An aluminum cartridge case, carrying a gas generating charge, has a retainer secured in its rearward end. The retainer has a base portion containing a percussion primer and a cylindrical sidewall portion containing the delay ignition unit that includes a spool having ignition train elements in its end flanges and a burnable fuze delay wire secured to the spool flanges and interconnecting the ignition train elements. The spool and retainer base portion are longitudinally spaced to provide a cavity therebetween for precluding primer overpressurization.
Claims3
In a gas generating device comprising, a cartridge case having a gas generating charge therein,
- a retainer secured in said case and having a rearward base portion containing a primer and a substantially cylindrical sidewall portion containing a delay ignition element,
- said delay ignition element including a spool having a pair of end flanges each containing a recess, ignition mix in one of said recesses and ignited by said primer, igniter mix in the other of said recesses for igniting said gas generating charge, and a burnable fuze delay wire spirally wound on said spool and having its end portions embedded in corresponding ones of said ignition mix and igniter mix, and
- an O-ring seal on an end flange of said spool forwardly adjacent said ignition mix.
Dependencies are inferred from the claim text.