Explosive and thermic compositions or charges – Metal or alloy or metalloid – each in particulate form – with... – Inorganic oxygen-halogen salt
Reexamination Certificate
2001-07-02
2003-02-18
Carone, Michael J. (Department: 3641)
Explosive and thermic compositions or charges
Metal or alloy or metalloid, each in particulate form, with...
Inorganic oxygen-halogen salt
C149S077000, C149S083000
Reexamination Certificate
active
06521064
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a pyrotechnic burster composition that produces its effect as the result of an explosion.
2. Description of Related Art
Pyrotechnic compositions are widely used to produce a loud report and/or flash for a variety of applications. Typically, black powder or various “flash” compositions are used in this role.
More recently, pyrotechnic flash compositions have provided the energy for “sting ball” or “stun” type devices used by military and law enforcement personnel. Many of the flash compositions used in these devices, however, are dangerous to manufacture and handle because of their tendency to explode if initiated when unconfined. The same can be said for black powder, which has been employed as a bursting material for hundreds of years. The safety issues associated with the manufacture and use of black powder and flash type compositions are well known. See, e.g., J. A. Conking,
Chemistry of Pyrotechnics,
Marcel Dekker, Inc., New York, N.Y. , 1985, pages 3 and 176.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a pyrotechnic burster composition that combines good explosive energy when confined, with reduced ignition hazard when unconfined.
The composition includes pyrotechnic mixtures of KClO
4
, metal powders, and pentaerythritol or terephthalic acid.
By virtue of its good explosive energy when confined and reduced ignition hazard when unconfined, the composition exceeds the performance of both black powder and a traditional flash composition.
REFERENCES:
patent: 3257801 (1966-06-01), Martinez et al.
patent: 3609115 (1971-09-01), Sammons et al.
patent: 3627596 (1971-12-01), Green
patent: 3745076 (1973-07-01), Sickman et al.
patent: 3745927 (1973-07-01), Tanner et al.
patent: 3779825 (1973-12-01), Blackwell
patent: 4116131 (1978-09-01), Shafer et al.
patent: 4274893 (1981-06-01), Mars et al.
Anderson David H.
Smith David W.
Tracy Gene V.
Biffoni Ulysses John
Felton Aileen B.
The United States of America as represented by the Secretary of
LandOfFree
Pyrotechnic burster composition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pyrotechnic burster composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyrotechnic burster composition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3177102