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:
Sep. 29, 1992
Filed:
Mar. 26, 1991
Applicant:
Inventor:
Charles M Lownds, Johannesburg, ZA;
Assignee:
Mining Services International Corp., Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06G / ;
U.S. Cl.
CPC ...
149 21 ; 149 46 ; 149 61 ; 149112 ;
Abstract
A blasting composition for use in boreholes of diameter not less than 80 mm. The composition contains more than about 25% of solid oxidiser particles such as limestone ammonium nitrate. These particles are in the form of dense prills, granules or crystals and about 80% of them have a minimum thickness in the range of 1/200 to 1/75 of borehole diameter.