Explosive and thermic compositions or charges – Containing inorganic nitrogen-oxygen salt – Alkali metal or alkaline earth metal nitrate salt
Reexamination Certificate
2006-03-28
2011-11-29
McDonough, James (Department: 1731)
Explosive and thermic compositions or charges
Containing inorganic nitrogen-oxygen salt
Alkali metal or alkaline earth metal nitrate salt
C149S022000, C149S037000, C149S075000, C149S109400
Reexamination Certificate
active
08066833
ABSTRACT:
A novel non-toxic IR tracer composition is provided herein which, when incorporated into an IR tracer projectile which is then fired, generates a dim visibility IR trace. Such IR tracer composition is a non-toxic, boron-containing, IR tracer composition comprising: from about 20 to about 30% by weight, or from about 45 to about 60% by weight, of potassium perchlorate; from about 5 to about 16% by weight of a metallic fuel which consists of boron; from about 20 to about 25% by weight, or from about 40 to about 50% by weight, of a non-metallic fuel which consists of sodium salicylate; from about 5 to about 10% by weight of a retardant which consists either of iron carbonate or magnesium carbonate; and an effective amount of binder, wherein the total percentage of such ingredients add up to 100%. A novel IR tracer projectile containing such IR tracer composition for generating a dim visibility IR trace is also provided.
REFERENCES:
patent: 1925641 (1933-09-01), Lucas
patent: 5525166 (1996-06-01), Cook
patent: 5639984 (1997-06-01), Nielson
patent: 5811724 (1998-09-01), Henry et al.
Guindon Louise
Jalbert Carol
Lepage Daniel
General Dynamics Ordnance and Tactical Systems-Canada Inc.
Khan Sheema
McDonough James
Miltons IP/p.i.
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