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. 01, 2003
Filed:
Nov. 22, 2000
Applicant:
Inventor:
Richard H. Granholm, Sandy, UT (US);
Assignee:
Dyno Nobel Inc., Salt Lake City, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42B 3/00 ;
U.S. Cl.
CPC ...
F42B 3/00 ;
Abstract
The present invention is directed to an improved method of blasting whereby the formation of nitrogen oxide after-blast fumes is reduced. This helps satisfy the need for better fume characteristics in blasting. The method reduces the formation of nitrogen oxides in after-blast fumes resulting from the detonation of a blasting agent in a borehole. The method comprises formulating the blasting agent to contain from about 1% to about 20% silicon powder.
Granholm, Richard. (2003). Blasting method for reducing nitrogen oxide fumes (U.S. Patent No. 6539870). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6539870
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile