Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C22C-038/08
C22C-038/12
F42B-030/00
출원번호
US-0857044
(2004-05-28)
등록번호
US-7267794
(2007-09-11)
발명자
/ 주소
Amick,Darryl D.
출원인 / 주소
Amick,Darryl D.
대리인 / 주소
Kolisch Hartwell, P.C.
인용정보
피인용 횟수 :
11인용 특허 :
68
초록▼
Density-enhanced compositions that are comprised of at least iron and tungsten, and articles, including firearm projectiles, formed therefrom. The articles have a density that exceeds that of steel, and which may be less than, equal to, or greater than that of lead. In some embodiments, iron is the
Density-enhanced compositions that are comprised of at least iron and tungsten, and articles, including firearm projectiles, formed therefrom. The articles have a density that exceeds that of steel, and which may be less than, equal to, or greater than that of lead. In some embodiments, iron is the majority component and tungsten is a minority component, with steel optionally forming a portion of the iron-containing component. In some embodiments, the article includes at least one additional minority component, such as one or more of nickel, manganese, tin, carbon, steel, chromium, molybdenum, silicon, aluminum, zinc, copper, potassium, sulfur, vanadium, and/or titanium. In some embodiments, the article is cast or otherwise formed from molten material, and in some embodiments the article is formed via powder metallurgy. In some embodiments, the article is firearm shot, a firearm slug, or a bullet.
대표청구항▼
I claim: 1. A shotgun shell, comprising: a casing containing at least wadding, a charge and a primer; a plurality of shell shot within the casing, wherein the shell shot are at least substantially formed from a cast alloy comprising: 20-35 wt % tungsten; 5-20 wt % nickel; and 50-75 wt % iron. 2
I claim: 1. A shotgun shell, comprising: a casing containing at least wadding, a charge and a primer; a plurality of shell shot within the casing, wherein the shell shot are at least substantially formed from a cast alloy comprising: 20-35 wt % tungsten; 5-20 wt % nickel; and 50-75 wt % iron. 2. The shell of claim 1, wherein the cast alloy further comprises steel. 3. The shell of claim 1, wherein the cast alloy further comprises manganese. 4. The shell of claim 1, wherein the cast alloy contains ferrotungsten. 5. The shell of claim 1, wherein the cast alloy has a density in the range of 8-10.5 g/cc. 6. The shell of claim 1, wherein the cast alloy has a density in the range of 10.5-15 g/cc. 7. The shell of claim 1, wherein the alloy includes 10-20 wt % nickel. 8. The shell of claim 1, wherein the alloy has a hardness of less than 275 Brinell. 9. The shell of claim 1, wherein the alloy has a hardness of less than 270 Brinell. 10. The shell of claim 1, wherein the alloy includes 20-30 wt % tungsten. 11. A shotgun shell, comprising: casing containing at least wadding, a charge and a primer; a plurality of shell shot within the casing, wherein the shell shot are at least substantially formed from a cast alloy comprising: 5-29.3 wt % tungsten; 5-20 wt % nickel; and 50-75 wt % iron. 12. The shell of claim 11, wherein the cast alloy further comprises steel. 13. The shell of claim 11, wherein the cast alloy further comprises manganese. 14. The shell of claim 11, wherein the cast alloy contains ferrotungsten. 15. The shell of claim 11, wherein the cast alloy has a density in the range of 8-10.5 g/cc. 16. The shell of claim 11, wherein the cast alloy has a density in the range of 10.5-15 g/cc. 17. The shell of claim 11, wherein the alloy includes 10-20 wt % nickel. 18. The shell of claim 11, wherein the alloy has a hardness of less than 275 Brinell. 19. The shell of claim 11, wherein the alloy has a hardness of less than 270 Brinell. 20. The shell of claim 11, wherein the alloy includes 20-29.3 wt % tungsten.
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이 특허에 인용된 특허 (68)
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Oltrogge Victor C. (11178 W. 59th Pl. Arvada CO 80004), High density projectile and method of making same from a mixture of low density and high density metal powders.
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Harold F. Beal, Powder-based disc for gun ammunition having a projectile which includes a frangible powder-based core disposed within a metallic jacket.
O\Brien John L. (Winchester MA) Perron Robert R. (Beverly MA) Strong Peter F. (Harvard MA), Process and apparatus for forming essentially spherical pellets directly from a melt.
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.
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