Ammunition and explosives – Projectiles – Fragmenting
Reexamination Certificate
2010-01-06
2011-10-04
Bergin, James (Department: 3641)
Ammunition and explosives
Projectiles
Fragmenting
C102S517000, C102S529000, C086S054000
Reexamination Certificate
active
08028626
ABSTRACT:
In making frangible objects, including lead-free bullets and other projectiles, powdered metal primary and powdered ceramic secondary phases are mixed and densified at an elevated temperature such that the ceramic phase forms a brittle network. Any combination of metal and ceramic phases may be used to achieve desired chemical and physical properties. Any appropriate mixing, forming, and/or thermal processing methods and equipment may be used. Degrees of frangibility, strength, and toughness can be adjusted to suit a given application by precursor selection, degree of mixing, relative amounts of metal and ceramic phases, forming method, and thermal and mechanical processing parameters.
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Hash Mark C.
Pearson Trent
Bergin James
Ervin Industries, Inc.
Gifford Krass Sprinkle Anderson & Citkowski P.C.
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