US2005132921A1PendingUtilityA1

Explosive for rock breaking

37
Priority: Jan 3, 2002Filed: Jul 1, 2004Published: Jun 23, 2005
Est. expiryJan 3, 2022(expired)· nominal 20-yr term from priority
Inventors:Andre Van Dyk
C06B 45/28C06B 45/10C06B 31/52
37
PatentIndex Score
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Claims

Abstract

A propellant composition which includes a propellant material and an oxygen source material.

Claims

exact text as granted — not AI-modified
1 . Rock breaking apparatus which includes a cartridge which forms an enclosure and a propellant composition inside the enclosure, and wherein the propellant composition is in particulate form and each particle includes a granule of propellant material which is coated, at least partly, with an oxygen source material.  
   
   
       2 . Rock breaking apparatus according to  claim 1  wherein the cartridge is made from a malleable material and includes a cylindrical side wall and a base, and wherein an initiator is located in the propellant composition inside the cartridge.  
   
   
       3 . Rock breaking apparatus according to  claim 1  wherein the propellant material is nitro-cellulose.  
   
   
       4 . Rock breaking apparatus according to  claim 1  wherein the oxygen source material is ammonium nitrate.

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