Explosive and thermic compositions or charges – Metal or alloy or metalloid – each in particulate form – with...
Reexamination Certificate
2011-08-30
2011-08-30
McDonough, James (Department: 1731)
Explosive and thermic compositions or charges
Metal or alloy or metalloid, each in particulate form, with...
C149S077000, C149S087000, C149S108200, C149S108600, C149S109200, C149S109400
Reexamination Certificate
active
08007608
ABSTRACT:
The present invention is directed to a tracer composition for tracer bullets and other projectiles. One preferred formula of the tracer composition generally includes about 58 parts by weight of magnesium, about 38 parts by weight of polytetraflouroethylene, about 4 parts by weight of acrylic rubber, and a burn rate stabilizer such as about 1.5 parts by weight of carbon black or graphite. Tracer bullets including the tracer composition of the invention tend to exhibit a projectile path that is almost unnoticeable to the naked eye but quite visible through the use of equipment detecting energy in the near infrared range.
REFERENCES:
patent: 4094711 (1978-06-01), Ramnarace
patent: 5639984 (1997-06-01), Nielson
patent: 5760329 (1998-06-01), Baum et al.
patent: 2002/0121321 (2002-09-01), Takayama et al.
Herbage David W.
Neuhauser Roy L.
Smith Barry N.
Berkenstock H. Roy
Hill Sarah Osborn
Kilgore Flares Co., LLC
McDonough James
Wyatt Tarrant & Combs LLP
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