FIREARM CARTRIDGE AND CASE-LESS CHAMBER

Passive coatings accelerate burning at interfaces between rapidly burning propellants and thermally conductive or endothermic inert surfaces. The coatings, useful in firearm cartridges, firearm chambers, and solid rocket motors, reflect infrared energy from the combustion gases to reduce heat loss t...

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Bibliographic Details
Main Authors MCPHERSON, MICHAEL, SMALLEY, ROBERT
Format Patent
LanguageEnglish
French
German
Published 23.08.2006
Edition7
Subjects
AMMUNITION
BLASTING
EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS ANDORDNANCE, e.g. CANNONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
MOUNTINGS FOR SMALLARMS OR ORDNANCE
WEAPONS
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Summary:Passive coatings accelerate burning at interfaces between rapidly burning propellants and thermally conductive or endothermic inert surfaces. The coatings, useful in firearm cartridges, firearm chambers, and solid rocket motors, reflect infrared energy from the combustion gases to reduce heat loss to the case or chamber and to accelerate ignition of the propellant. The reflective coating has a thermal breakdown temperature higher than the propellant ignition temperature. Firearm cartridges and chambers may have radial shoulder configuration that focuses a shockwave below a bullet base to reduce heat loss to the bullet and support bullet retention in the neck for a longer period of time.
Bibliography:Application Number: EP20010977252