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특허 상세정보

Process for heat treating bullets comprising two or more metals or alloys, and bullets made by the method

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C22F-001/08    C22F-001/12    C22D-009/10    C22D-009/16   
미국특허분류(USC) 148/536; 148/518; 148/516; 148/527
출원번호 US-0369666 (1999-08-05)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Klarquist Sparkman, LLP
인용정보 피인용 횟수 : 4  인용 특허 : 24

One embodiment of the present process, which is particularly useful for forming bullets from two dissimilar metals and/or alloys that have been bonded together, comprises heat-treating such bullets to simultaneously harden the core and soften the jacket. The process comprises: (a) forming a core comprising a lead alloy; (b) applying a copper or a copper alloy to at least a portion of an exterior surface of the core to form a jacketed bullet; (c) heating the jacketed bullet at a pre-selected temperature for a period of time sufficient to simultaneously ha...


1. A process for making a jacketed bullet, comprising:forming a core from a material selected from the group consisting of lead, lead alloys, and mixtures thereof; applying a layer of copper or copper alloy to an external surface of the core to form a copper or copper alloy jacket having a thickness of at least 0.004 inch, the jacket and core forming a projectile; heating the projectile to stress-relieve the jacket and precipitation-harden the core; quenching the projectile; and aging the projectile to allow the core to achieve its final hardness and a r...

이 특허에 인용된 특허 (24)

  1. Mc Cubbin Melvin J. (Ridgecrest CA) Weeks James A. (Ridgecrest CA) Miles Paul A. (Sterling VA). Advanced anti ship penetrator warhead. USP1996105567908.
  2. Davis ; Dale M.. Armor piercing projectile. USP1978084108073.
  3. Ekbom Lars (Granitvgen 16 S-186 35 Vallentuna SEX). Armor-piercing projectile with spiculating core. USP1991125069138.
  4. Webler William E. (Costa Mesa CA) Buhr Mark S. (Newport Beach CA). Automated longitudinal position translator for ultrasonic imaging probes, and methods of using same. USP1994115361768.
  5. Carter Herman L. (Houston TX). Bullet. USP1997045621186.
  6. Carter Herman L. (Houston TX). Bullet. USP1997065641937.
  7. Carter Herman L. (P.O. Box 262348 Houston TX 77207). Bullet. USP1988064750427.
  8. Carter Herman L. (P.O. Box 262348 Houston TX 77207). Bullet. USP1989114879953.
  9. Garvison Geary L. (13757 64th St. South Haven MI 49090). Cylindrical bullet. USP1993025187325.
  10. Gutowski Donald A. (4556 N. Ottawa Ave. Norridge IL 60656). Die cast bullet manufacturing process. USP1996075535495.
  11. Bedall ; Hans ; Rentzsch ; Max. Fragmentation casing for shells, warheads and the like and method of making same. USP1978124129061.
  12. LaSalle Jerry C. (Upper Montclair NJ) Batra Ravi (Rockaway NJ) Rorabaugh Donald T. (Budd Lake NJ). High density, high strength uranium-titanium-hafnium alloys. USP1990064935200.
  13. Calboreanu George A. (Augusta GA). Iron alloys, process and apparatus for introducing highly reactive metals into molten metal and process and product for. USP1988054746360.
  14. Pagano Victor H. (Rochester MI) Tasdemiroglu Server (Sterling Heights MI). Laminated armor-piercing projectile. USP1977084044679.
  15. Nelson Stanley R. (Minneapolis MN). Manufacturing thin wall steel cartridge cases. USP1991095048162.
  16. Fairbairn Thomas E. (Westland MI). Method for applying a wear and impact resistant coating. USP1977014004042.
  17. Carter Herman L. (P.O. Box 262348 Houston TX 77207). Method of making a bullet. USP1988124793037.
  18. Bane Charles K. (Farmer City IL). Method of making a hardened bullet. USP1995115464487.
  19. Bilsbury Stephen J. (Bethlehem PA) Dennis William G. ; Jr. (Florissant MO) Kernosky Stephen K. (Godfrey IL). Method of making a low cost penetrator projectile. USP1992045105514.
  20. Inman Darrel F. (Lewiston ID). Plated jacket soft point bullet. USP1983064387492.
  21. Nicolas Jean-Claude (Lyon FRX) Saulnier Raymond (Bonneville FRX). Process for direct shaping and optimization of the mechanical characteristics of penetrating projectiles of high-density. USP1991125069869.
  22. Myers Michael (Westfield NJ). Process for strengthening lead-antimony alloys. USP1988064753688.
  23. Petrovich Robert M. (10748 Bob White ; P.O. Box 111 Hamburg MI 48139) Petrovich Paul A. (11269 Judd Rd. Fowlerville MI 48836). Projective with improved flowering. USP1993025185495.
  24. Hellner Lars (Karlskoga SEX) Haglund Ingemar (Karlskoga SEX) Rnn Torsten (Karlskoga SEX) Albrektsson Kjell (Karlskoga SEX). Shell case with non-compressible fragments metallurgically bonded to the casing. USP1987024644867.