Plated expanding bullet and method of manufacturing the bullet
OwnerThomas J. Burczynskiinventor
Life of this patent
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Abstract
A fully plated hollow-point bullet and a method of manufacturing the bullet wherein a malleable metal precursor core having a central cavity and a surrounding wall is divided into a series of petals, each petal being separated from one another by an air space, and all interior and exterior surfaces of the precursor core, including individual petals, are thereafter electroplated with a second metal and final formed in a hollow-point pointing die, ultimately producing a more robust bullet and one that expands easier and faster on impact than plated bullets of conventional manufacture.
Claims21
A plated expanding bullet, comprising:
- a core comprising a malleable material of a first hardness, the core having a nose and an aft;
- a plurality of petals at least partially defining the nose of the core, wherein each petal is integrally formed and extending from a peripheral portion of the aft and taper inward such that the plurality of petals form a hollow-point cavity, each of the petals is independently bendable, each of the petals further comprising a first inflection point and a second inflection point wherein the second inflection point is positioned closest to the aft and is the thickest portion of the petal;
- and
- a bonded metal jacket of a second hardness completely encapsulating the core, each of the petals, and the hollow-point cavity and wherein the second hardness is greater than the first hardness.
A plated expanding bullet, comprising:
- a core comprising a malleable material of a first hardness, the core having a nose and an aft;
- a plurality of petals at least partially defining the nose of the core, wherein each petal is integrally formed and extending from a peripheral portion of the aft and taper inward such that the plurality of petals form a hollow-point cavity, each of the petals is independently bendable, each of the petals further comprising a first inflection point and a second inflection point wherein the second inflection point is positioned closest to the aft and is the thickest portion of the petal;
- and
- a bonded metal jacket of a second hardness completely encapsulating the core, each of the petals, and the hollow-point cavity and wherein the second hardness is greater than the first hardness, further wherein the jacket comprises a first thickness and a second thickness.
A process having steps for forming a plated hollow-point expanding bullet, the steps comprising:
- forming a cylindrical core having a central cylindrical cavity and a continuous surrounding wall at one end from a cylindrical core using a cavity-forming/knockout punch;
- swaging the cylindrical core to form a series of circumferentially-spaced petals in the wall of the core wherein each petal is formed using a petal-forming die containing a multi-armed dividing insert while simultaneously separating the petals by a longitudinal air space;
- electroplating all internal and external surfaces of the divided pre-form;
- and
- forming the plated pre-form into a plated hollow-point expanding bullet with plating completely encasing all internal and external surfaces.
Dependencies are inferred from the claim text.