US2006283314A1PendingUtilityA1

Bismuth projectile

39
Individually held — no corporate assignee on recordPriority: Feb 2, 2005Filed: Feb 2, 2006Published: Dec 21, 2006
Est. expiryFeb 2, 2025(expired)· nominal 20-yr term from priority
Inventors:Anthony Joseph Cesaroni
F42B 12/74F42B 30/02F42B 33/00
39
PatentIndex Score
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Claims

Abstract

A bismuth projectile comprising bismuth and a non-alloying metal and/or a polymer. A method for making a projectile comprising injection molding molten or partially molten bismuth and, optionally, a non-alloying metal and/or a polymer to form a projectile.

Claims

exact text as granted — not AI-modified
1 . A method for making a projectile comprising injection molding a composition comprising molten or partially molten bismuth and, optionally, a non-alloying metal and/or a polymer to form a projectile.  
   
   
       2 . A method for making a projectile of  claim 1 , wherein the projectile is a bullet.  
   
   
       3 . A method for making a projectile of  claim 1 , wherein the projectile is a high density projectile.  
   
   
       4 . A method for making a projectile of  claim 1 , wherein injection molding comprises injecting the composition into a mold to form the projectile.  
   
   
       5 . A method for making a projectile of  claim 1 , wherein injection molding is conventional injection molding, thixotropic injection molding (TXM), and/or high pressure die casting.  
   
   
       6 . A method for making a projectile of  claim 1 , wherein partially molten is at least about 50% molten.  
   
   
       7 . A method for making a projectile of  claim 1 , wherein the composition comprises the molten or partially molten bismuth and the non-alloying metal and/or the polymer.  
   
   
       8 . A method for making a projectile of  claim 1 , wherein the composition comprises the molten or partially molten bismuth, the non-alloying metal and the polymer.  
   
   
       9 . A method for making a projectile of  claim 1 , wherein the non-alloying metal is selected from the group consisting of copper, tungsten, zirconium, steel, titanium, hafnium, niobium, tantalum, zinc, other high density metals and combinations thereof.  
   
   
       10 . A method for making a projectile of  claim 1 , wherein the injection molding is at any suitable temperature that permits bismuth to become molten or partially molten.  
   
   
       11 . A method for making a projectile of  claim 10 , wherein the injection molding is conducted at a temperature from about 260° C. to about 375° C.  
   
   
       12 . A method for making a projectile of  claim 1 , wherein the composition comprises from about 1% to about 99% by weight bismuth.  
   
   
       13 . A method for making a projectile of  claim 1 , wherein the composition comprises from about 60% to about 95% by weight bismuth.  
   
   
       14 . A method for making a projectile of  claim 12 , wherein the composition comprises from about 1% to about 99% by weight of the non-alloying metal and/or the polymer.  
   
   
       15 . A method for making a projectile of  claim 1 , wherein the polymer is amorphous or has a low crystallinity.  
   
   
       16 . A method for making a projectile of  claim 1 , wherein the polymer is selected from the group consisting of ethylene/methacrylic acid copolymer ionomer, polyetherester elastomer, polydicyclopentadiene, polydimethylsiloxane, polyamide, and mixtures thereof.  
   
   
       17 . A method for making a projectile of  claim 1 , wherein the polymer is an ionomer.  
   
   
       18 . A method for making a projectile comprising: 
 inserting a jacket having one open end into a mold of a projectile; injecting a composition comprising molten or partially molten bismuth and, optionally, a non-alloying metal and/or a polymer into the jacket through the open end; and    removing the projectile so formed from the mold.    
   
   
       19 . A method for making a projectile of  claim 18 , wherein the projectile is a bullet.  
   
   
       20 . A method for making a projectile of  claim 18 , wherein partially molten is at least about 50% molten.  
   
   
       21 . A method for making a projectile of  claim 18 , wherein the composition comprises the molten or partially molten bismuth and the non-alloying metal and/or the polymer.  
   
   
       22 . A method for making a projectile of  claim 18 , wherein the composition comprises the molten or partially molten bismuth, the non-alloying metal and the polymer.  
   
   
       23 . A method for making a projectile of  claim 18 , wherein the non-alloying metal is selected from the group consisting of copper, tungsten, zirconium, steel, titanium, hafnium, niobium, tantalum, zinc, other high density metals and combinations thereof.  
   
   
       24 . A method for making a projectile of  claim 18 , wherein the injecting the composition is at any suitable temperature that permits bismuth to become molten or partially molten.  
   
   
       25 . A method for making a projectile of  claim 18 , wherein the composition comprises from about 1% to about 99% by weight bismuth.  
   
   
       26 . A method for making a projectile of  claim 18 , wherein the composition comprises from about 60% to about 95% by weight bismuth.  
   
   
       27 . A method for making a projectile of  claim 25 , wherein the composition comprises from about 1% to about 99% by weight of the non-alloying metal and/or the polymer.  
   
   
       28 . A method for making a projectile of  claim 18 , wherein the polymer is amorphous or has a low crystallinity.  
   
   
       29 . A method for making a projectile of  claim 18 , wherein the jacket comprises a metal.  
   
   
       30 . A projectile made by the method of  claim 1 .  
   
   
       31 . A projectile made by the method of  claim 18 .  
   
   
       32 . A projectile comprising a composition comprising bismuth and a non-alloying metal and/or a polymer.  
   
   
       33 . A projectile of  claim 32 , wherein the projectile is a bullet.  
   
   
       34 . A projectile of  claim 32 , wherein the projectile is a high density projectile.  
   
   
       35 . A projectile of  claim 32 , wherein the non-alloying metal is selected from the group consisting of copper, tungsten, zirconium, steel, titanium, hafnium, niobium, tantalum, zinc, other high density metals and combinations thereof.  
   
   
       36 . A projectile of  claim 32 , wherein the composition comprises from about 1% to about 99% by weight bismuth.  
   
   
       37 . A projectile of  claim 32 , wherein the composition comprises from about 60% to about 95% by weight bismuth.  
   
   
       38 . A projectile of  claim 32 , wherein the composition comprises from about 1% to about 99% by weight of the non-alloying metal and/or the polymer.  
   
   
       39 . A projectile of  claim 32 , wherein the polymer is amorphous or has a low crystallinity.  
   
   
       40 . A projectile of  claim 32 , wherein the polymer is an ionomer.

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