The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 2004
Filed:
Oct. 30, 2002
Robert B. Smalley, Jr., Brigham City, UT (US);
Superior Ballistics, Inc., Brigham City, UT (US);
Abstract
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.