TPI Powder Metallurgy, Inc.

United States of America

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F42B 12/36 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling 1
F42B 12/72 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material 1
F42B 12/74 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body 1
F42B 12/82 - Coatings reduction friction 1
F42B 8/14 - Projectiles or missiles disintegrating in flight or upon impact 1
Found results for  patents

1.

Lead free frangible iron bullets

      
Application Number 16779069
Grant Number 11674781
Status In Force
Filing Date 2020-01-31
First Publication Date 2020-07-16
Grant Date 2023-06-13
Owner TPI Powder Metallurgy, Inc. (USA)
Inventor
  • Yntema, Stuart
  • Yntema, Steven B.
  • Easlick, Ted R.
  • May, David J.

Abstract

The invention relates to bullets having increased frangibility (or which can be easily fragmented) and to powder materials and processes for the manufacture of such bullets. The bullets of the present invention are made from an iron alloy containing 75-81% Hoeganaes MH-100 Iron 0.6-0.09% Carbon, and balance of admixed Copper powder. Said bullets are then coated for lubricity so the bullet does not prematurely wear the barrel of a gun. Additionally, the invention provides a simple low cost process to make bullets that is amenable to mass production via automation.

IPC Classes  ?

  • F42B 12/74 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
  • F42B 12/36 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materialsProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for producing chemical or physical reactionProjectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling
  • F42B 12/72 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
  • F42B 8/14 - Projectiles or missiles disintegrating in flight or upon impact
  • F42B 12/82 - Coatings reduction friction