CA2425118A1 - Lead free powdered metal projectiles - Google Patents
Lead free powdered metal projectiles Download PDFInfo
- Publication number
- CA2425118A1 CA2425118A1 CA002425118A CA2425118A CA2425118A1 CA 2425118 A1 CA2425118 A1 CA 2425118A1 CA 002425118 A CA002425118 A CA 002425118A CA 2425118 A CA2425118 A CA 2425118A CA 2425118 A1 CA2425118 A1 CA 2425118A1
- Authority
- CA
- Canada
- Prior art keywords
- projectile
- lead free
- ductility metal
- powder
- tin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
- F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B8/00—Practice or training ammunition
- F42B8/12—Projectiles or missiles
- F42B8/14—Projectiles or missiles disintegrating in flight or upon impact
- F42B8/16—Projectiles or missiles disintegrating in flight or upon impact containing an inert filler in powder or granular form
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Lead free projectiles having a density less than lead, including preferred embodiments comprising a low ductility metal powder and a high ductility met al powder.
Claims (34)
1. A lead free projectile comprising a compacted admixture of iron powder and at least one powder selected from tin, zinc and alloys and mixtures thereof.
2. A projectile of Claim 1 wherein the iron powder consists essentially of particles of about from 44 to 250 microns.
3. A projectile of Claim 1 wherein the at least one powder selected from tin, zinc and alloys and mixtures thereof consists essentially of particles of about from 45 to 180 microns.
4. A projectile of Claim 1 wherein the iron powder and the at least one powder selected from tin, zinc and alloys and mixtures thereof consist essentially of particles of about from 44 to 250 microns.
5. A projectile of Claim 1 wherein the volume ratio of the at least one powder selected from tin, zinc and alloys and mixtures thereof to the iron powder is about from 0.5 to 6.
6. A projectile of Claim 1 wherein the at least one powder is tin, the volume ratio of tin to iron is about 0.5, and the projectile has a theoretical density of about 0.2713 lbm/cubic inch.
7. A frangible projectile of Claim 1.
8. A sintered projectile of Claim 1.
9. An unsintered projectile of Claim 1.
10. A projectile of Claim 1 having a theoretical density of about from 0.26 to 0.28 lbm/cubic inch.
11. A lead free projectile comprising a compacted admixture of at least one high ductility metal powder and a low ductility metal powder, wherein the projectile has a density of less than about 80% of the theoretical density of lead.
12. A lead free projectile of Claim 11 having a density of less than about 70%
of the theoretical density of lead.
of the theoretical density of lead.
13. A lead free composite projectile comprising a compacted admixture of a high ductility metal powder and a low ductility metal powder, wherein the low ductility metal powder is less dense than least and the projectile is less dense than lead.
14. A Lead free projectile of Claim 13 wherein the high ductility metal powder is less dense than lead.
15. A lead free projectile of Claim 14 having a density of about from 0.26 to 0.28 lbm/cubic inch.
16. A lead free projectile of Claim 15 having a density of about from 0.262 to 0.272 lbm/cubic inch.
17. A lead free projectile of Claim 13 wherein the volume ratio of high ductility metal powder to low ductility metal powder is about from 0.4 to 6.
18. A lead free projectile of Claim 13 wherein the admixture comprises a volumetric mix ratio of about two parts high ductility metal to one part low ductility metal.
19. A lead free projectile of Claim 13 wherein the low ductility metal is at least one selected from the group consisting of iron, iron alloys and~stainless steel.
20. A lead free projectile of Claim 19 wherein the high ductility metal is at least one selected from the group consisting of tin, zinc, alloys of tin, alloys of zinc, and mixtures thereof.
21. A lead free projectile of Claim 20 wherein the high ductility metal consists essentially of tin.
22. A lead free projectile of Claim 20 wherein the high ductility metal consists essentially of zinc.
23. A lead free projectile of 20 wherein the high ductility metal consists essentially of at least one tin alloy.
24. A lead free projectile of Claim 20 wherein the high ductility metal consists essentially of at least one zinc alloy.
25. A lead free projectile of Claim 20 wherein the high ductility metal consists essentially of a mixture of tin and zinc.
26. A lead free projectile of Claim 20 wherein the high ductility metal consists essentially of a mixture of at least one tin alloy and zinc.
27. A lead free projectile of Claim 20 wherein the high ductility metal consists essentially of a mixture of tin and at least one zinc alloy.
28. A lead free projectile of Claim 20 wherein the high ductility metal consists essentially of a mixture of at least one tin alloy and at least one zinc alloy.
29. A lead free projectile of Claim 20 wherein the low ductility metal powder is at least one selected from the group consisting of iron, iron alloys and stainless steel.
30. A lead free projectile comprising a compacted admixture of a high ductility metal powder and a low ductility metal powder, wherein the high and low ductility powders are within a density ratio or range of about 0.260 - 0.20 lbm/cubic inch.
31. A lead free projectile comprising a compacted admixture of a high ductility metal powder and a low ductility metal powder, wherein the high and low ductility powders are within a density ratio or range of about +/- 10% of the apparent density of iron powder.
32. A lead free projectile of Claim 31 wherein the density of the high ductility metal powder is about from 10% greater than the density of wrought iron to 10%
less than the density of wrought iron.
less than the density of wrought iron.
33. A lead free projectile having a density less than the theoretical density of lead.
34. A cold compacted projectile of Claim 33.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/684,230 US6892647B1 (en) | 1997-08-08 | 2000-10-06 | Lead free powdered metal projectiles |
| US09/684,230 | 2000-10-06 | ||
| PCT/US2001/031343 WO2002046689A1 (en) | 2000-10-06 | 2001-10-09 | Lead free powdered metal projectiles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2425118A1 true CA2425118A1 (en) | 2002-06-13 |
| CA2425118C CA2425118C (en) | 2009-12-22 |
Family
ID=24747216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002425118A Expired - Fee Related CA2425118C (en) | 2000-10-06 | 2001-10-09 | Lead free powdered metal projectiles |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP1330626B1 (en) |
| KR (1) | KR20030048426A (en) |
| CN (1) | CN1479856A (en) |
| AT (1) | ATE384240T1 (en) |
| AU (1) | AU2002213051A1 (en) |
| BR (1) | BR0114473A (en) |
| CA (1) | CA2425118C (en) |
| DE (1) | DE60132477T2 (en) |
| DK (1) | DK1330626T3 (en) |
| IL (1) | IL155190A0 (en) |
| MX (1) | MXPA03003030A (en) |
| WO (1) | WO2002046689A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10260850B2 (en) * | 2016-03-18 | 2019-04-16 | Environ-Metal, Inc. | Frangible firearm projectiles, methods for forming the same, and firearm cartridges containing the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH6474A (en) * | 1893-02-27 | 1893-08-15 | Von Foerster Max | New floor |
| CA2194487C (en) | 1994-07-06 | 2000-06-06 | Richard A. Lowden | Non-lead, environmentally safe projectiles and method of making same |
| US6074454A (en) * | 1996-07-11 | 2000-06-13 | Delta Frangible Ammunition, Llc | Lead-free frangible bullets and process for making same |
| US6536352B1 (en) * | 1996-07-11 | 2003-03-25 | Delta Frangible Ammunition, Llc | Lead-free frangible bullets and process for making same |
| US5847313A (en) * | 1997-01-30 | 1998-12-08 | Cove Corporation | Projectile for ammunition cartridge |
| US5917143A (en) * | 1997-08-08 | 1999-06-29 | Remington Arms Company, Inc. | Frangible powdered iron projectiles |
| US6090178A (en) * | 1998-04-22 | 2000-07-18 | Sinterfire, Inc. | Frangible metal bullets, ammunition and method of making such articles |
-
2001
- 2001-10-09 WO PCT/US2001/031343 patent/WO2002046689A1/en not_active Ceased
- 2001-10-09 EP EP01981408A patent/EP1330626B1/en not_active Expired - Lifetime
- 2001-10-09 AT AT01981408T patent/ATE384240T1/en not_active IP Right Cessation
- 2001-10-09 IL IL15519001A patent/IL155190A0/en unknown
- 2001-10-09 KR KR10-2003-7004926A patent/KR20030048426A/en not_active Withdrawn
- 2001-10-09 CN CNA018200559A patent/CN1479856A/en active Pending
- 2001-10-09 DE DE60132477T patent/DE60132477T2/en not_active Expired - Lifetime
- 2001-10-09 BR BR0114473-1A patent/BR0114473A/en not_active IP Right Cessation
- 2001-10-09 AU AU2002213051A patent/AU2002213051A1/en not_active Abandoned
- 2001-10-09 DK DK01981408T patent/DK1330626T3/en active
- 2001-10-09 CA CA002425118A patent/CA2425118C/en not_active Expired - Fee Related
- 2001-10-09 MX MXPA03003030A patent/MXPA03003030A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002213051A1 (en) | 2002-06-18 |
| DE60132477D1 (en) | 2008-03-06 |
| EP1330626B1 (en) | 2008-01-16 |
| WO2002046689A1 (en) | 2002-06-13 |
| IL155190A0 (en) | 2003-11-23 |
| EP1330626A1 (en) | 2003-07-30 |
| DE60132477T2 (en) | 2009-01-15 |
| KR20030048426A (en) | 2003-06-19 |
| BR0114473A (en) | 2004-01-13 |
| DK1330626T3 (en) | 2008-05-26 |
| EP1330626A4 (en) | 2004-10-13 |
| MXPA03003030A (en) | 2003-06-24 |
| CN1479856A (en) | 2004-03-03 |
| CA2425118C (en) | 2009-12-22 |
| ATE384240T1 (en) | 2008-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20171010 |