Ductile, high-density, non-toxic shot and other articles and method for producing same
OwnerDarryl Dean Amickinventor
Life of this patent
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Abstract
Ductile, high-density, non-toxic W—Ni—Mn—Fe alloy compositions and methods of manufacture by which they may be converted to shot (for use in shotshells) and other useful products traditionally made of lead alloys are presented. Product of the present invention is softer than gun barrel steels and may be hand-loaded (and recycled/reloaded) into shotshells using conventional powders, primers, casings and wads. If desired for game law enforcement, shot of the present invention may be formulated to be ferromagnetic while retaining all other desirable attributes.
Claims30
A method for making ductile, non-toxic spheres and other desired shapes of cast articles with densities 10.5-15 g/cm3 comprising the steps of melting and casting alloys of the following range of composition:
- 30-75% tungsten,
- 10-70% nickel,
- 0-35% iron,
- 0-20% manganese.
A ductile, non-toxic lead substitute formed at least substantially from an alloy comprising:
- 30-75% tungsten,
- 10-70% nickel,
- 0-35% iron, and
- 0-20% manganese,
- wherein the alloy contains a nickel:manganese weight ratio≧2.0.
A ductile, non-toxic lead substitute formed at least substantially from an alloy comprising:
- 30-75% tungsten,
- 10-70% nickel,
- 0-35% iron, and
- 0-20% manganese,
- wherein the alloy includes felnotungsten formed by reduction of wolframite without intentional removal of manganese.
A ductile, non-toxic lead substitute formed at least substantially from an alloy comprising:
- 30-75% tungsten,
- 10-70% nickel,
- 0-35% iron, and
- 0-20% manganese,
- wherein the alloy comprises <approximately 8.5% manganese.
A ductile, non-toxic lead substitute formed at least substantially from an alloy comprising:
- 30-75% tungsten,
- 10-70% nickel,
- 0-35% iron, and
- 0-20% manganese,
- wherein the alloy comprises manganese in the range of approximately 8.5% and approximately 16%.
A ductile, non-toxic lead substitute formed at least substantially from an alloy comprising:
- 30-75% tungsten,
- 10-70% nickel,
- 0-35% iron, and
- 0-20% manganese,
- wherein the alloy comprises approximately 16% manganese.
A ductile, non-toxic lead substitute formed at least substantially from an alloy comprising:
- 30-75% tungsten,
- 10-70% nickel,
- 0-35% iron, and
- 0-20% manganese,
- wherein the alloy is formed into shellshot, and further wherein said shellshot is comprised of a plurality of particles of varying shot sizes and densities such that the mathematical product of diameter and density for each particle equals an approximately constant value.
Dependencies are inferred from the claim text.