The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1995
Filed:
Aug. 08, 1994
Applicant:
Inventor:
Charles M Lownds, Salt Lake City, UT (US);
Assignee:
Mining Services International, Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C06B / ;
U.S. Cl.
CPC ...
149-2 ; 149 60 ; 149 61 ;
Abstract
The density of ammonium nitrate-based mining explosives, such as ANFO, heavy ANFO and emulsion explosives, is lowered by adding an expanded grain, such as expanded popcorn, expanded rice, or expanded wheat, to the explosive. As much as 10% of the explosive composition may be an expanded grain. The present invention may be used with porous ammonium nitrate, dense agricultural grade ammonium nitrate, crystalline ammonium nitrate, and ground ammonium nitrate.