US3123003A - lange - Google Patents

lange Download PDF

Info

Publication number
US3123003A
US3123003A US3123003DA US3123003A US 3123003 A US3123003 A US 3123003A US 3123003D A US3123003D A US 3123003DA US 3123003 A US3123003 A US 3123003A
Authority
US
United States
Prior art keywords
powder
bullets
weight
resin
lead
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.)
Expired - Lifetime
Application number
Priority date (The priority date 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 date listed.)
Publication date
Application granted granted Critical
Publication of US3123003A publication Critical patent/US3123003A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0094—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with organic materials as the main non-metallic constituent, e.g. resin
    • 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
    • F42B12/745—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body the core being made of plastics; Compounds or blends of plastics and other materials, e.g. fillers

Definitions

  • US. Patents 2,105,528, 2,168,381 and 2,315,853 disclose the preparation of bullets which have been formulated by mixing lead with other metals such as zinc or copper or another compound such as iron oxide. These bullets, While much superior to plain lead bullets for use in shooting galleries, still do not disintegrate satisfactorily upon the target and a great deal of litigation has resulted from injuries caused by splashback of particles.
  • the primary object of this invention is to prepare novel formulations which can be used in the production of a unique gallery bullet. A more specific being subject to the dangerous spattering of lead particles inherent in many of the prior art gallery bullets.
  • Still another object of this invention is to prepare an improved gallery bullet which will not be characterized by an undesirably high noise level when fired.
  • Novel formulations have been prepared which can be used to make gallery bullets possessing new and improved qualities. From these forthe strength to withstand shooting, have a relatively high density and furnish important safety features to the user. The resultant gallery bullets are also characterized by excellent disintegration properties, and there is no objectionable noise level when the bullets are fired.
  • FIGURE 1 is a side view of a bullet prepared from the formulations described herein.
  • FIGURE 2 is a sectional View of the bullet shown in FIGURE 1.
  • the preferred formulations include the following proportions of ingredients: iron-30 to 17 parts by weight, lead70 to 83 parts by weight and thermosetting resin-0.1 to 1.0 part by Weight.
  • the iron powder which can be used in these novel formulations is produced by the reduction process.
  • the iron powder should be so sized that 98% will pass through an mesh screen and 2535% will pass through a 325 mesh screen.
  • thermosetting resins which can be used in the practice of this invention. It has been found that the use of For example, bisphenol A may be replaced by other diphenols, glycols or even glycerinc.
  • the desirable epoxy resins suitable for use in these formulations are viscous liquids or clear brittle solids having molecular weights from about 600 to 8000. 7
  • thermosetting resins usually the curing of such thermosetting resins is achieved by using a catalyst or hardener but satisfactory results have been obtained in the absence of these compounds.
  • the preferred proportion of thermosetting resin is 0.75 part per 100 parts of metal powders. It has been found that a proportion as small as 0.10 part will yield bullets; the performance of these bullets however, is inferior to those of the preferred composition. It has also been found that a proportion as high as 1.0 part will yield bullets, but these bullets do not possess the desirable ballistic characteristics exhibited by those containing the preferred proportion.
  • a lubricant such as a metallic stearate to cause the powdered metal to flow and compact satisfactorily.
  • a metallic stearate such as lithium stearate may be used as a lubricant in the proportion of 0.01 to 0.5 part per 100 parts of powdered metal.
  • Example 1 Formulation: Percent by wt., parts Lead powder, Type 40 B, oil-treated, Glidden Co 83 Iron powder, Ancor 80 1 17 Epon 1004 0.75
  • the iron powder and solid epoxy resin were blended in a double arm type blender for 15 minutes above the melting point of the resin (95100 C.). The resulting mix was cooled and crushed in the same blender and then ground to pass through a 30 mesh screen.
  • the oil-treated lead was added to the iron-resin mix, and the entire mixture was blended and ground to pass through a 30 mesh screen.
  • the powder mix was then compacted into bullets in a rotary tabletting press. The bullets were cured for 3 hours at 300 F., tumbled to remove flash and then loaded in the usual manner.
  • Example 2 Formulation: Percent by wt., parts Lead powder, Type 40 B, oil-treated, Glidden Co 83 Iron powder, .Ancor 80 17 Epon 828, Shell Chemical Corporation 0.75
  • the liquid epoxy resin was mixed with metaphenylenediamine (13% by wt. of resin) and the mixture was warmed and stirred above the melting point of the diamine (ca. 63 C.).
  • Example 3 Formulation: Percent by wt., parts Lead powder, Type 40 B, oil-treated, Glidden Iron powder, Ancor 17 Estane 5740242 1 0.75
  • lhis is a polyurethane obtained from the B. F. Goodrich Chemical Company. It is made with diphenylmethane-p,pdiisocyanate, adipic acid and butanediol-lA.
  • the Estane was dissolved in 10 cc. of methyl ethyl ketone by refluxing on a steam bath. Then 0.024 part of dicumyl peroxide and the iron powder were added to the solution, and the ketone was driven off on a steam bath. The resulting m'nr was ground to pas through a 30 mesh screen.
  • Example 4 Formulation: Percent by wt., parts Lead powder, Type 40 B, oil-treated, Glidden Co. 83 Iron powder, Ancor 8O 17 Atlac 382 1 styrene monomer 0.75
  • Atlae is a trademark for polyester resins prepared by reaction of a bisphenol with unsaturated compounds such as funiaric .or maleic anhydride. Product obtained from Atlas Powder Company.
  • a polyester resin prepared by reaction of a diol and a dibasic acid and containing styrene monomer Obtained from Allied Chemical Corporation.
  • the bullets prepared in these experiments possess the good ballistic characteristics of lead bullets and are safe to use in shooting galleries since the dangerous back spattering of particles has been eliminated. Furthermore the use of these bullets is not accompanied by an objectionable noise level.
  • a formulation suitable for preparing a disintegrating gallery bullet by powder metallurgy techniques comprising a mixture of 7083 parts by weight of lead powder the surface of which is substantially free of corrosion and oxidation products, 30-17 parts by weight of iron powder and 0.1-1.0 part by weight of a thermosetting resin.
  • a formulation suitable for preparing a disintegrating gallery bullet by powder metallurgy techniques comprising a mixture of (a) 70-83 parts by weight of oil-treated lead powder,
  • said lead powder particles being so sized that a 2% maximum of said powder would be retained on a 40 mesh screen and a 65% minimum of said powder would be retained on a 100 mesh screen, and
  • thermosetting resin 0.1-1.0 part by weight of a thermosetting resin.
  • a formulation suitable for preparing -a disintegrating gallery bullet by powder metallurgy techniques comprising a mixture of 83 parts by weight of lead powder the surface of which is substantially free of corrosion and oxidation products, 17 parts by weight of iron powder and 0.75 part by weight of an epoxy resin having a molecular weight of from about 600 to 8,000.
  • a disintegrating gallery bullet comprising a compacted mixture of 70-83 parts by weight of lead powder the surface of which is substantially free of corrosion and oxidation products, -17 parts by weight of iron powder, and 0.1 to 1.0 part by weight of a thermosetting resin selected from the group consisting of an epoxy resin having a molecular weight of from about 600 to 8,000, a polyester resin and a polyurethane resin.
  • a disintegrating gallery bullet comprising a compacted mixture of 83 parts by weight of oil-treated lead powder, 17 parts by weight of iron powder and 0.75 part by weight of an expoxy resin having a molecular weight of from about 600 to 8,000.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Epoxy Resins (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Powder Metallurgy (AREA)

Description

March: 3, 1964 P. H. LANGE, JR., ETAL GALLERY BULLET Filed Jan. 3, 1962 INVENT PAUL H. LANGE, J/P.
ORS.
OMER N. DEJAR/VETT ATTORNEY United States Patent Ofilice 3,123,003 GALLERY BULLET Paul H. Lange, In, New Haven, Conn, and Omer W. De Jarnett, Alton, 111., assignors to Ulin Mathieson Chemical Corporation, a corporation of Virginia Filed Jan. 3, 1962, Ser. No. 164,157 9 Claims. (Cl. 10 2-31) This invention relates to novel formulations for use in the manufacture of bullets, and more particularly it is concerned with formulations which can be used in the preparation of a unique disintegrating gallery bullet.
In the production of bullets for use in shooting galleries, a primary consideration should be to prepare a bullet which disintegrates on the target without excessive splashback of bullet particles. Conventional lead bullets, While possessed of good ballistic properties, are not safe to use in such galleries because of the splashback of large lead particles from the target. Various other types of bullets have been designed in an effort to overcome these difiiculties.
For example, US. Patents 2,105,528, 2,168,381 and 2,315,853 disclose the preparation of bullets which have been formulated by mixing lead with other metals such as zinc or copper or another compound such as iron oxide. These bullets, While much superior to plain lead bullets for use in shooting galleries, still do not disintegrate satisfactorily upon the target and a great deal of litigation has resulted from injuries caused by splashback of particles.
have been molded into a homogeneous body with the aid of a thermoplastic binder. These bullets are characterized by improved safety features since the tendency for large particles to spatter about upon disintegration has been reduced. However, since these bullets are much lighter than lead bullets, they must be fired at a much greater velocity in order level of the lead bullets. As a loud noise level is and this is an especially undesirable characteristic in enclosed shooting galleries.
Therefore the primary object of this invention is to prepare novel formulations which can be used in the production of a unique gallery bullet. A more specific being subject to the dangerous spattering of lead particles inherent in many of the prior art gallery bullets.
Still another object of this invention is to prepare an improved gallery bullet which will not be characterized by an undesirably high noise level when fired. Other objects will be noted in or will be obvious from the following discussion.
These objects have been accomplished in accordance with the present invention. Novel formulations have been prepared which can be used to make gallery bullets possessing new and improved qualities. From these forthe strength to withstand shooting, have a relatively high density and furnish important safety features to the user. The resultant gallery bullets are also characterized by excellent disintegration properties, and there is no objectionable noise level when the bullets are fired.
der metallurgy techniques.
3,123,903 Patented Mar. 3, 1964 FIGURE 1 is a side view of a bullet prepared from the formulations described herein.
FIGURE 2 is a sectional View of the bullet shown in FIGURE 1.
It has been found that for best results, a relatively coarse lead powder should be utilized in these novel formulations. It is preferred to use lead powder of such a size that a 2% maximum of such powder would There are several reasons for the preferential use of the aforementioned particle size. The use of such coarse particles is necessary to provide good feeding in tabletting presses. In addition, finer powders having much greater surface area are more affected by corrosion products on their surfaces. On the other hand if too coarse particles are used, the highly undesirable splashback problems may be again encountered.
It is known that to surface corrosion,
full strength upon compaction by pow- The corroded particles will not adhere satisfactorily to each other because the corrosion products are refractory in nature. Therefore in order to prepare bullets of adequate strength, it is nections containing equal amounts by weight of lead and iron powders. However, in general, the preferred formulations include the following proportions of ingredients: iron-30 to 17 parts by weight, lead70 to 83 parts by weight and thermosetting resin-0.1 to 1.0 part by Weight.
The iron powder which can be used in these novel formulations is produced by the reduction process. For best results, the iron powder should be so sized that 98% will pass through an mesh screen and 2535% will pass through a 325 mesh screen.
Superior adhesion to the surfaces of the metal powders involved in the formulations is an important requisite of the thermosetting resins which can be used in the practice of this invention. It has been found that the use of For example, bisphenol A may be replaced by other diphenols, glycols or even glycerinc. Before curing, the desirable epoxy resins suitable for use in these formulations are viscous liquids or clear brittle solids having molecular weights from about 600 to 8000. 7
It has also been found that various polyesters and polyurethanes can be used as the required resins. Gallery bullets possessing the desired characteristics have been prepared when these compounds have been utilized instead of epoxy resins in the metal powder formulations.
It is necessary that the resin in the final powder mix be in a solid non-tacky form before this mix is introduced into the tabletting machine or caking and sticking of the powder mix will occur during this operation. Liquid resins can however be satisfactorily utilized if they are partially polymerized to a solid non-tacky state before this operation.
Usually the curing of such thermosetting resins is achieved by using a catalyst or hardener but satisfactory results have been obtained in the absence of these compounds. The preferred proportion of thermosetting resin is 0.75 part per 100 parts of metal powders. It has been found that a proportion as small as 0.10 part will yield bullets; the performance of these bullets however, is inferior to those of the preferred composition. It has also been found that a proportion as high as 1.0 part will yield bullets, but these bullets do not possess the desirable ballistic characteristics exhibited by those containing the preferred proportion.
In powder metallurgy, it is conventional to use a lubricant such as a metallic stearate to cause the powdered metal to flow and compact satisfactorily. However it has been found that with the use of oil-treated lead powder, no other lubricant is required to obtain satisfactory flow of the powdered metals. If desired a metallic stearate such as lithium stearate may be used as a lubricant in the proportion of 0.01 to 0.5 part per 100 parts of powdered metal.
Some typical preparations of gallery bullets involving the use of these novel formulations are herein described.
Example 1 Formulation: Percent by wt., parts Lead powder, Type 40 B, oil-treated, Glidden Co 83 Iron powder, Ancor 80 1 17 Epon 1004 0.75
Obtained from Hoeganes Sponge Iron Corporation,
"Epon is a trademark for condensation products of epichlorohydrin and bisphenol-A. Obtained from Shell Chemical Corporation.
The iron powder and solid epoxy resin were blended in a double arm type blender for 15 minutes above the melting point of the resin (95100 C.). The resulting mix was cooled and crushed in the same blender and then ground to pass through a 30 mesh screen.
Then the oil-treated lead was added to the iron-resin mix, and the entire mixture was blended and ground to pass through a 30 mesh screen. The powder mix was then compacted into bullets in a rotary tabletting press. The bullets were cured for 3 hours at 300 F., tumbled to remove flash and then loaded in the usual manner.
Example 2 Formulation: Percent by wt., parts Lead powder, Type 40 B, oil-treated, Glidden Co 83 Iron powder, .Ancor 80 17 Epon 828, Shell Chemical Corporation 0.75
The liquid epoxy resin was mixed with metaphenylenediamine (13% by wt. of resin) and the mixture was warmed and stirred above the melting point of the diamine (ca. 63 C.).
This mixture, while in a liquid form, was stirred with the iron powder and left at room temperature for a period of about twenty-four hours at which point the solid mixture was no longer tacky. The mix was then ground to pass through a 30' mesh screen.
Then the oil-treated lead was added to the iron-resin mix, and the entire mixture was blended and ground to pass through a 30 mesh screen. Bullets were prepared from this mixture in the same manner as in Example 1.
Example 3 Formulation: Percent by wt., parts Lead powder, Type 40 B, oil-treated, Glidden Iron powder, Ancor 17 Estane 5740242 1 0.75
lhis is a polyurethane obtained from the B. F. Goodrich Chemical Company. It is made with diphenylmethane-p,pdiisocyanate, adipic acid and butanediol-lA.
The Estane was dissolved in 10 cc. of methyl ethyl ketone by refluxing on a steam bath. Then 0.024 part of dicumyl peroxide and the iron powder were added to the solution, and the ketone was driven off on a steam bath. The resulting m'nr was ground to pas through a 30 mesh screen.
Then the oil-treated lead was added to the iron-resin mix, and the entire mixture was blended and ground to pass through a 30 mesh screen. Bullets were prepared from the mixture in the same manner as in Example 1.
Example 4 Formulation: Percent by wt., parts Lead powder, Type 40 B, oil-treated, Glidden Co. 83 Iron powder, Ancor 8O 17 Atlac 382 1 styrene monomer 0.75
Atlae is a trademark for polyester resins prepared by reaction of a bisphenol with unsaturated compounds such as funiaric .or maleic anhydride. Product obtained from Atlas Powder Company.
Equal amounts (0.375 part by weight) of Atlac 382 and styrene monomer were stirred together until a clear solution was obtained, and then 2% of benzoyl peroxide (based on total weight of resin and styrene) was added and stirred. The iron powder was added and blended, and the resulting mix was allowed to stand at F. for two hours. At the end of this period, the solid mix was non-tacky, and it was ground to pass through a 30 mesh screen.
Then the oil-treated lead was added to the iron-resin mix and the entire mixture was blended and ground to pass through a 30 mesh screen. Bullets were prepared from this mixture in the same manner as in Example 1.
A polyester resin prepared by reaction of a diol and a dibasic acid and containing styrene monomer. Obtained from Allied Chemical Corporation.
To the Plaskon 941 was added 2% by weight of benzoyl peroxide with stirring. The iron powder was then added with stirring; and the mixture was allowed to stand at 160 F. for two hours. At the end of this period, the solid mix was non tacky, and it was ground to pass through a 30 mesh screen.
Then the oil-treated lead was added to the iron-resin mix and the entire mix was blended and ground to pass through a 30 mesh screen. Bullets were prepared from this mixture in the same manner as in Example 1.
The bullets prepared in these experiments possess the good ballistic characteristics of lead bullets and are safe to use in shooting galleries since the dangerous back spattering of particles has been eliminated. Furthermore the use of these bullets is not accompanied by an objectionable noise level.
What is claimed is:
1. A formulation suitable for preparing a disintegrating gallery bullet by powder metallurgy techniques comprising a mixture of 7083 parts by weight of lead powder the surface of which is substantially free of corrosion and oxidation products, 30-17 parts by weight of iron powder and 0.1-1.0 part by weight of a thermosetting resin.
2. The formulation of claim epoxy resin having 8,000.
3. The formulation of claim 1 wherein said resin is selected from the group consisting of a polyester resin and a polyurethane resin.
4. A formulation suitable for preparing a disintegrating gallery bullet by powder metallurgy techniques comprising a mixture of (a) 70-83 parts by weight of oil-treated lead powder,
said lead powder particles being so sized that a 2% maximum of said powder would be retained on a 40 mesh screen and a 65% minimum of said powder would be retained on a 100 mesh screen, and
(b) 30-17 parts by weight of iron powder, said iron powder particles being so sized that 98% of said powder would pass through an 80 mesh screen and 25-35% of said powder would pass through a 325 mesh screen, and
(c) 0.1-1.0 part by weight of a thermosetting resin.
5. The formulation of claim 4 wherein said resin is an epoxy resin having a molecular weight from about 600 to 8,000.
6; The formulation of claim 4 wherein said resin is selected from the group consisting of a polyester resin and a polyurethane resin.
1 wherein said resin is an a molecular weight from about 600 to 7. A formulation suitable for preparing -a disintegrating gallery bullet by powder metallurgy techniques comprising a mixture of 83 parts by weight of lead powder the surface of which is substantially free of corrosion and oxidation products, 17 parts by weight of iron powder and 0.75 part by weight of an epoxy resin having a molecular weight of from about 600 to 8,000.
8. A disintegrating gallery bullet comprising a compacted mixture of 70-83 parts by weight of lead powder the surface of which is substantially free of corrosion and oxidation products, -17 parts by weight of iron powder, and 0.1 to 1.0 part by weight of a thermosetting resin selected from the group consisting of an epoxy resin having a molecular weight of from about 600 to 8,000, a polyester resin and a polyurethane resin.
9. A disintegrating gallery bullet comprising a compacted mixture of 83 parts by weight of oil-treated lead powder, 17 parts by weight of iron powder and 0.75 part by weight of an expoxy resin having a molecular weight of from about 600 to 8,000.
References Cited in the file of this patent UNITED STATES PATENTS

Claims (1)

1. A FORMULATION SUITABLE FOR PREPARING A DISINTEGRATING GALLERY BULLET BY POWDER METALLURGY TECHNIQUES COMPRISING A MIXTURE OF 70-83 PARTS BY WEIGHT OF LEAD POWDER THE SURFACE OF WHICH IS SUBSTANTIALLY FREE OF CORROSION AND OXIDATION PRODUCTS, 30-17 PARTS BY WEIGHT OF IRON POWDER AND 0.1-1.0 PART BY WEIGHT OF A THERMOSETTING RESIN.
US3123003D 1962-01-03 lange Expired - Lifetime US3123003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16415762A 1962-01-03 1962-01-03

Publications (1)

Publication Number Publication Date
US3123003A true US3123003A (en) 1964-03-03

Family

ID=22593232

Family Applications (1)

Application Number Title Priority Date Filing Date
US3123003D Expired - Lifetime US3123003A (en) 1962-01-03 lange

Country Status (2)

Country Link
US (1) US3123003A (en)
GB (1) GB974318A (en)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570406A (en) * 1967-05-31 1971-03-16 Dynamit Nobel Ag Practice cartridge for automatic firearms
US3656433A (en) * 1969-10-13 1972-04-18 Us Army Method for reducing shot dispersion
EP0071722A1 (en) * 1981-08-01 1983-02-16 Hüls Aktiengesellschaft Highly filled polyamide moulding mass able to disintegrate into fine particles
WO1988001723A1 (en) * 1986-09-03 1988-03-10 Coors Porcelain Company Ceramic munitions projectile
WO1988009476A1 (en) * 1987-05-21 1988-12-01 Sprintvale Limited Training projectile of plastics material
US4939996A (en) * 1986-09-03 1990-07-10 Coors Porcelain Company Ceramic munitions projectile
US4958572A (en) * 1989-02-24 1990-09-25 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Non-ricocheting projectile and method of making same
DE9204695U1 (en) * 1992-04-04 1992-07-02 Hetzel, Stefan, 5480 Remagen Projectile, especially for small caliber to medium caliber handguns
US5237930A (en) * 1992-02-07 1993-08-24 Snc Industrial Technologies, Inc. Frangible practice ammunition
US5399187A (en) * 1993-09-23 1995-03-21 Olin Corporation Lead-free bullett
US5616642A (en) * 1995-04-14 1997-04-01 West; Harley L. Lead-free frangible ammunition
US5665808A (en) * 1995-01-10 1997-09-09 Bilsbury; Stephen J. Low toxicity composite bullet and material therefor
WO1998002266A1 (en) * 1996-07-11 1998-01-22 Scm Metal Products, Inc. Lead free-franglible bullets and process for making same________
US6090178A (en) * 1998-04-22 2000-07-18 Sinterfire, Inc. Frangible metal bullets, ammunition and method of making such articles
WO2000062009A1 (en) * 1999-04-02 2000-10-19 Delta Frangible Ammunition, Llc Jacketed frangible bullets
US6158351A (en) * 1993-09-23 2000-12-12 Olin Corporation Ferromagnetic bullet
US6248150B1 (en) 1999-07-20 2001-06-19 Darryl Dean Amick Method for manufacturing tungsten-based materials and articles by mechanical alloying
US6270549B1 (en) 1998-09-04 2001-08-07 Darryl Dean Amick Ductile, high-density, non-toxic shot and other articles and method for producing same
US6447715B1 (en) 2000-01-14 2002-09-10 Darryl D. Amick Methods for producing medium-density articles from high-density tungsten alloys
US6527880B2 (en) 1998-09-04 2003-03-04 Darryl D. Amick Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
US6536352B1 (en) 1996-07-11 2003-03-25 Delta Frangible Ammunition, Llc Lead-free frangible bullets and process for making same
US6640724B1 (en) 1999-08-04 2003-11-04 Olin Corporation Slug for industrial ballistic tool
US6749802B2 (en) 2002-01-30 2004-06-15 Darryl D. Amick Pressing process for tungsten articles
US20040112243A1 (en) * 2002-01-30 2004-06-17 Amick Darryl D. Tungsten-containing articles and methods for forming the same
US20040216589A1 (en) * 2002-10-31 2004-11-04 Amick Darryl D. Tungsten-containing articles and methods for forming the same
US20050034558A1 (en) * 2003-04-11 2005-02-17 Amick Darryl D. System and method for processing ferrotungsten and other tungsten alloys, articles formed therefrom and methods for detecting the same
US7000547B2 (en) 2002-10-31 2006-02-21 Amick Darryl D Tungsten-containing firearm slug
US20060102041A1 (en) * 2002-10-29 2006-05-18 Polytech Ammunition Company Lead free, composite polymer based bullet and method of manufacturing
US7217389B2 (en) 2001-01-09 2007-05-15 Amick Darryl D Tungsten-containing articles and methods for forming the same
US20070119523A1 (en) * 1998-09-04 2007-05-31 Amick Darryl D Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
US7399334B1 (en) 2004-05-10 2008-07-15 Spherical Precision, Inc. High density nontoxic projectiles and other articles, and methods for making the same
US20100288255A1 (en) * 2006-03-10 2010-11-18 Jenson Martin W Apparatus, system, and method for launching a granular substance
US8122832B1 (en) 2006-05-11 2012-02-28 Spherical Precision, Inc. Projectiles for shotgun shells and the like, and methods of manufacturing the same
US8443730B2 (en) 2011-01-14 2013-05-21 Pcp Tactical, Llc High strength polymer-based cartridge casing and manufacturing method
WO2013022506A3 (en) * 2011-05-08 2013-05-23 Global Tungsten & Powders Corp. Frangible projectile and method for making same
US8573126B2 (en) 2010-07-30 2013-11-05 Pcp Tactical, Llc Cartridge base and plastic cartridge case assembly for ammunition cartridge
US8763535B2 (en) 2011-01-14 2014-07-01 Pcp Tactical, Llc Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition
US8807008B2 (en) 2011-01-14 2014-08-19 Pcp Tactical, Llc Polymer-based machine gun belt links and cartridge casings and manufacturing method
USD715888S1 (en) 2012-01-13 2014-10-21 Pcp Tactical, Llc Radiused insert
US8869702B2 (en) 2011-01-14 2014-10-28 Pcp Tactical, Llc Variable inside shoulder polymer cartridge
US9470485B1 (en) 2004-03-29 2016-10-18 Victor B. Kley Molded plastic cartridge with extended flash tube, sub-sonic cartridges, and user identification for firearms and site sensing fire control
US9677860B2 (en) 2011-12-08 2017-06-13 Environ-Metal, Inc. Shot shells with performance-enhancing absorbers
US9921017B1 (en) 2013-03-15 2018-03-20 Victor B. Kley User identification for weapons and site sensing fire control
US9958244B2 (en) * 2013-02-21 2018-05-01 Einstein Noodles, Llc Composite projectile and cartridge with composite projectile
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
US10690465B2 (en) 2016-03-18 2020-06-23 Environ-Metal, Inc. Frangible firearm projectiles, methods for forming the same, and firearm cartridges containing the same
US10794671B2 (en) 2011-01-14 2020-10-06 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US11448491B2 (en) 2018-07-30 2022-09-20 Pcp Tactical, Llc Polymer cartridge with enhanced snapfit metal insert and thickness ratios
US11519703B2 (en) 2021-01-29 2022-12-06 Vista Outdoor Operations, LLC Multi-faceted shot
US12247818B2 (en) 2018-07-30 2025-03-11 Pcp Tactical, Llc Polymer ammunition article designed for use across a wide temperature range
US12247819B2 (en) 2010-07-30 2025-03-11 Pcp Tactical, Llc Two-piece insert and/or flash tube for polymer ammunition cartridges

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105528A (en) * 1932-04-08 1938-01-18 Winchester Repeating Arms Co Disintegrating bullet
US2133761A (en) * 1937-08-30 1938-10-18 Tietig Chester Method of making porous metal objects
US2315853A (en) * 1940-07-11 1943-04-06 Remington Arms Co Inc Ammunition
US2995090A (en) * 1954-07-02 1961-08-08 Remington Arms Co Inc Gallery bullet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105528A (en) * 1932-04-08 1938-01-18 Winchester Repeating Arms Co Disintegrating bullet
US2133761A (en) * 1937-08-30 1938-10-18 Tietig Chester Method of making porous metal objects
US2315853A (en) * 1940-07-11 1943-04-06 Remington Arms Co Inc Ammunition
US2995090A (en) * 1954-07-02 1961-08-08 Remington Arms Co Inc Gallery bullet

Cited By (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570406A (en) * 1967-05-31 1971-03-16 Dynamit Nobel Ag Practice cartridge for automatic firearms
US3656433A (en) * 1969-10-13 1972-04-18 Us Army Method for reducing shot dispersion
EP0071722A1 (en) * 1981-08-01 1983-02-16 Hüls Aktiengesellschaft Highly filled polyamide moulding mass able to disintegrate into fine particles
WO1988001723A1 (en) * 1986-09-03 1988-03-10 Coors Porcelain Company Ceramic munitions projectile
US4850278A (en) * 1986-09-03 1989-07-25 Coors Porcelain Company Ceramic munitions projectile
GB2213917A (en) * 1986-09-03 1989-08-23 Coors Porcelain Co Ceramic munitions projectile
US4939996A (en) * 1986-09-03 1990-07-10 Coors Porcelain Company Ceramic munitions projectile
GB2213917B (en) * 1986-09-03 1990-08-01 Coors Porcelain Co Ceramic munitions projectile
WO1988009476A1 (en) * 1987-05-21 1988-12-01 Sprintvale Limited Training projectile of plastics material
US4958572A (en) * 1989-02-24 1990-09-25 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Non-ricocheting projectile and method of making same
US5237930A (en) * 1992-02-07 1993-08-24 Snc Industrial Technologies, Inc. Frangible practice ammunition
DE9204695U1 (en) * 1992-04-04 1992-07-02 Hetzel, Stefan, 5480 Remagen Projectile, especially for small caliber to medium caliber handguns
US5399187A (en) * 1993-09-23 1995-03-21 Olin Corporation Lead-free bullett
WO1995008653A1 (en) * 1993-09-23 1995-03-30 Olin Corporation Lead-free bullet
US5814759A (en) * 1993-09-23 1998-09-29 Olin Corporation Lead-free shot
US6158351A (en) * 1993-09-23 2000-12-12 Olin Corporation Ferromagnetic bullet
US5665808A (en) * 1995-01-10 1997-09-09 Bilsbury; Stephen J. Low toxicity composite bullet and material therefor
US5616642A (en) * 1995-04-14 1997-04-01 West; Harley L. Lead-free frangible ammunition
WO1998002266A1 (en) * 1996-07-11 1998-01-22 Scm Metal Products, Inc. Lead free-franglible bullets and process for 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
US6090178A (en) * 1998-04-22 2000-07-18 Sinterfire, Inc. Frangible metal bullets, ammunition and method of making such articles
US6263798B1 (en) 1998-04-22 2001-07-24 Sinterfire Inc. Frangible metal bullets, ammunition and method of making such articles
US7267794B2 (en) 1998-09-04 2007-09-11 Amick Darryl D Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
US6890480B2 (en) 1998-09-04 2005-05-10 Darryl D. Amick Ductile medium- and high-density, non-toxic shot and other articles and method for producing the same
US6270549B1 (en) 1998-09-04 2001-08-07 Darryl Dean Amick Ductile, high-density, non-toxic shot and other articles and method for producing same
US6527880B2 (en) 1998-09-04 2003-03-04 Darryl D. Amick Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
US20030172775A1 (en) * 1998-09-04 2003-09-18 Amick Darryl D. Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
US7640861B2 (en) 1998-09-04 2010-01-05 Amick Darryl D Ductile medium- and high-density, non-toxic shot and other articles and method for producing the same
US20070119523A1 (en) * 1998-09-04 2007-05-31 Amick Darryl D Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
US20050211125A1 (en) * 1998-09-04 2005-09-29 Amick Darryl D Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same
WO2000062009A1 (en) * 1999-04-02 2000-10-19 Delta Frangible Ammunition, Llc Jacketed frangible bullets
US6527824B2 (en) 1999-07-20 2003-03-04 Darryl D. Amick Method for manufacturing tungsten-based materials and articles by mechanical alloying
US6248150B1 (en) 1999-07-20 2001-06-19 Darryl Dean Amick Method for manufacturing tungsten-based materials and articles by mechanical alloying
US7159519B2 (en) 1999-08-04 2007-01-09 Olin Corporation Slug for industrial ballistic tool
US20110017050A1 (en) * 1999-08-04 2011-01-27 Robinson Peter W Slug for industrial ballistic tool
US7891299B2 (en) 1999-08-04 2011-02-22 Olin Corporation Slug for industrial ballistic tool
US6640724B1 (en) 1999-08-04 2003-11-04 Olin Corporation Slug for industrial ballistic tool
US7328658B2 (en) 1999-08-04 2008-02-12 Olin Corporation Slug for industrial ballistic tool
US20040200340A1 (en) * 1999-08-04 2004-10-14 Robinson Peter W. Slug for industrial ballistic tool
US6447715B1 (en) 2000-01-14 2002-09-10 Darryl D. Amick Methods for producing medium-density articles from high-density tungsten alloys
US6884276B2 (en) 2000-01-14 2005-04-26 Darryl D. Amick Methods for producing medium-density articles from high-density tungsten alloys
US20050188790A1 (en) * 2000-01-14 2005-09-01 Amick Darryl D. Methods for producing medium-density articles from high-density tungsten alloys
US7329382B2 (en) 2000-01-14 2008-02-12 Amick Darryl D Methods for producing medium-density articles from high-density tungsten alloys
US7217389B2 (en) 2001-01-09 2007-05-15 Amick Darryl D Tungsten-containing articles and methods for forming the same
US6749802B2 (en) 2002-01-30 2004-06-15 Darryl D. Amick Pressing process for tungsten articles
US20040112243A1 (en) * 2002-01-30 2004-06-17 Amick Darryl D. Tungsten-containing articles and methods for forming the same
US6823798B2 (en) 2002-01-30 2004-11-30 Darryl D. Amick Tungsten-containing articles and methods for forming the same
US7204191B2 (en) * 2002-10-29 2007-04-17 Polytech Ammunition Company Lead free, composite polymer based bullet and method of manufacturing
US20060102041A1 (en) * 2002-10-29 2006-05-18 Polytech Ammunition Company Lead free, composite polymer based bullet and method of manufacturing
US20040216589A1 (en) * 2002-10-31 2004-11-04 Amick Darryl D. Tungsten-containing articles and methods for forming the same
US7059233B2 (en) 2002-10-31 2006-06-13 Amick Darryl D Tungsten-containing articles and methods for forming the same
US7000547B2 (en) 2002-10-31 2006-02-21 Amick Darryl D Tungsten-containing firearm slug
US20050034558A1 (en) * 2003-04-11 2005-02-17 Amick Darryl D. System and method for processing ferrotungsten and other tungsten alloys, articles formed therefrom and methods for detecting the same
US7383776B2 (en) 2003-04-11 2008-06-10 Amick Darryl D System and method for processing ferrotungsten and other tungsten alloys, articles formed therefrom and methods for detecting the same
US9470485B1 (en) 2004-03-29 2016-10-18 Victor B. Kley Molded plastic cartridge with extended flash tube, sub-sonic cartridges, and user identification for firearms and site sensing fire control
US9891030B1 (en) 2004-03-29 2018-02-13 Victor B. Kley Molded plastic cartridge with extended flash tube, sub-sonic cartridges, and user identification for firearms and site sensing fire control
US7399334B1 (en) 2004-05-10 2008-07-15 Spherical Precision, Inc. High density nontoxic projectiles and other articles, and methods for making the same
US7422720B1 (en) 2004-05-10 2008-09-09 Spherical Precision, Inc. High density nontoxic projectiles and other articles, and methods for making the same
US8196571B2 (en) 2006-03-10 2012-06-12 Jenson Martin W Apparatus, system, and method for launching a granular substance
US20100288255A1 (en) * 2006-03-10 2010-11-18 Jenson Martin W Apparatus, system, and method for launching a granular substance
US8122832B1 (en) 2006-05-11 2012-02-28 Spherical Precision, Inc. Projectiles for shotgun shells and the like, and methods of manufacturing the same
US12247819B2 (en) 2010-07-30 2025-03-11 Pcp Tactical, Llc Two-piece insert and/or flash tube for polymer ammunition cartridges
US8573126B2 (en) 2010-07-30 2013-11-05 Pcp Tactical, Llc Cartridge base and plastic cartridge case assembly for ammunition cartridge
US9989343B2 (en) 2010-07-30 2018-06-05 Pcp Tactical, Llc Base insert for polymer ammunition cartridges
US9599443B2 (en) 2010-07-30 2017-03-21 Pcp Tactical, Llc Base insert for polymer ammunition cartridges
US8443730B2 (en) 2011-01-14 2013-05-21 Pcp Tactical, Llc High strength polymer-based cartridge casing and manufacturing method
US8869702B2 (en) 2011-01-14 2014-10-28 Pcp Tactical, Llc Variable inside shoulder polymer cartridge
US9003973B1 (en) 2011-01-14 2015-04-14 Pcp Tactical, Llc Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition
US9194680B2 (en) 2011-01-14 2015-11-24 Pcp Tactical, Llc Polymer-based machine gun belt links and cartridge casings and manufacturing method
US9261335B2 (en) 2011-01-14 2016-02-16 Pcp Tactical, Llc Frangible portion for a high strength polymer-based cartridge casing and manufacturing method
US9372054B2 (en) 2011-01-14 2016-06-21 Pcp Tactical, Llc Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition
US12410994B2 (en) 2011-01-14 2025-09-09 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US8875633B2 (en) 2011-01-14 2014-11-04 Pcp Tactical, Llc Adhesive lip for a high strength polymer-based cartridge casing and manufacturing method
US9995561B2 (en) 2011-01-14 2018-06-12 Pcp Tactical, Llc Narrowing high strength polymer-based cartridge for blank and subsonic ammunition
US11976911B2 (en) 2011-01-14 2024-05-07 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US8807008B2 (en) 2011-01-14 2014-08-19 Pcp Tactical, Llc Polymer-based machine gun belt links and cartridge casings and manufacturing method
US11353299B2 (en) 2011-01-14 2022-06-07 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US10794671B2 (en) 2011-01-14 2020-10-06 Pcp Tactical, Llc Polymer-based cartridge casing for subsonic ammunition
US8763535B2 (en) 2011-01-14 2014-07-01 Pcp Tactical, Llc Narrowing high strength polymer-based cartridge casing for blank and subsonic ammunition
US10287213B2 (en) 2011-05-08 2019-05-14 Global Tungsten And Powders Corp. Frangible projectile and method for making same
WO2013022506A3 (en) * 2011-05-08 2013-05-23 Global Tungsten & Powders Corp. Frangible projectile and method for making same
US10209044B2 (en) 2011-12-08 2019-02-19 Environ-Metal, Inc. Shot shells with performance-enhancing absorbers
US9677860B2 (en) 2011-12-08 2017-06-13 Environ-Metal, Inc. Shot shells with performance-enhancing absorbers
US9897424B2 (en) 2011-12-08 2018-02-20 Environ-Metal, Inc. Shot shells with performance-enhancing absorbers
USD765214S1 (en) 2012-01-13 2016-08-30 Pcp Tactical, Llc Radiused insert
USD715888S1 (en) 2012-01-13 2014-10-21 Pcp Tactical, Llc Radiused insert
US9958244B2 (en) * 2013-02-21 2018-05-01 Einstein Noodles, Llc Composite projectile and cartridge with composite projectile
US10190856B2 (en) 2013-02-21 2019-01-29 Einstein Noodles, Llc Composite projectile and cartridge with composite projectile
US9921017B1 (en) 2013-03-15 2018-03-20 Victor B. Kley User identification for weapons and site sensing fire control
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
US10690465B2 (en) 2016-03-18 2020-06-23 Environ-Metal, Inc. Frangible firearm projectiles, methods for forming the same, and firearm cartridges containing the same
US11280597B2 (en) 2016-03-18 2022-03-22 Federal Cartridge Company Frangible firearm projectiles, methods for forming the same, and firearm cartridges containing the same
US11359896B2 (en) 2016-03-18 2022-06-14 Federal Cartridge Company Frangible firearm projectiles, methods for forming the same, and firearm cartridges containing the same
US11448491B2 (en) 2018-07-30 2022-09-20 Pcp Tactical, Llc Polymer cartridge with enhanced snapfit metal insert and thickness ratios
US12163770B2 (en) 2018-07-30 2024-12-10 Pcp Tactical, Llc Polymer cartridge with enhanced snapfit metal insert and thickness ratios
US12247818B2 (en) 2018-07-30 2025-03-11 Pcp Tactical, Llc Polymer ammunition article designed for use across a wide temperature range
US11940259B2 (en) 2021-01-29 2024-03-26 Federal Cartridge Company Multi-faceted shot
US11519703B2 (en) 2021-01-29 2022-12-06 Vista Outdoor Operations, LLC Multi-faceted shot

Also Published As

Publication number Publication date
GB974318A (en) 1964-11-04

Similar Documents

Publication Publication Date Title
US3123003A (en) lange
US4428295A (en) High density shot
US5719352A (en) Low toxicity shot pellets
JP2001524605A (en) Lubricants for metallurgical powder compositions
US3639345A (en) Shelf-stable epoxy resin composition of epoxy resin and adduct of trimellitic anhydride and polyalkylene glycol
GB2149067A (en) Pellets and shot and their manufacture
US3834957A (en) Solvent process for production of composite propellants using hexane and hmx
US5949016A (en) Energetic melt cast explosives
US5206313A (en) Process for preparing powder coating composition
US3411963A (en) Illuminating flare composition composed of magnesium, sodium nitrate, and an epoxy resin-polyglycol resin binder
US4655858A (en) Burning rate enhancement of solid propellants by means of metal/oxidant agglomerates
US2856381A (en) Foundry sand binder composition containing at least three phenol-formaldehyde resins
US3737290A (en) Sintered titanium alloy
US3677840A (en) Pyrotechnics comprising oxide of silver for weather modification use
US3305413A (en) Solid propellant formulation based on hydroxylamine perchlorates
EP0077390B1 (en) Compositions, processes, and writing elements employing resins of the thermosetting type
US3432370A (en) Flare composition containing alkali metal nitrate,magnesium,and a copolymer reaction product binder
JPH06505529A (en) Resin compositions, especially casting resins
US5320692A (en) Solid fuel ramjet composition
CH656606A5 (en) FUEL MIXTURE.
US4115167A (en) Castable binder for cast plastic-bonded explosives
US3079338A (en) Anti-friction material
US3301187A (en) Consumable materials
US4145328A (en) Bimetallic adhesive mixture for bonding and release applications
US3673014A (en) Flare composition