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:
Jun. 13, 2000
Filed:
Jul. 11, 1996
Applicant:
Inventors:
John T Abrams, Raleigh, NC (US);
Anil V Nadkarni, Chapel Hill, NC (US);
Roy Kelly, Arlington, VA (US);
Assignee:
Delta Frangible Ammunition, LLC, Stafford, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42B / ; F42B / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
75247 ; 75231 ; 75232 ; 75233 ; 75235 ; 75236 ; 75237 ; 75238 ; 75244 ; 75252 ; 75254 ; 102506 ; 102517 ; 102529 ; 419-2 ; 419 28 ; 419 29 ; 419 38 ; 419 47 ; 419 56 ; 419 58 ; 419 59 ;
Abstract
The invention relates to bullets having increased frangibility (or which can be easily fragmented) and to materials and processes for the manufacture of such bullets. The bullets of the present invention are typically made from copper or copper alloy powders (including brass, bronze and dispersion strengthened copper) which are pressed and then sintered under conditions so as to obtain bullets with the desired level of frangibility. In preferred embodiments of the invention, the bullets also contain several additives that increase or decrease their frangibility.