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.

Date of Patent:
Feb. 08, 2005

Filed:

Aug. 29, 2003
Applicants:

Dirk Hummel, Hennef, DE;

Olaf Cramer, Essen, DE;

Inventors:

Dirk Hummel, Hennef, DE;

Olaf Cramer, Essen, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F42B003/18 ;
U.S. Cl.
CPC ...
Abstract

Blasting apparatuses and methods control actuation of a plurality of detonators, and involve the use of one or more authorization keys each associated with a blasting machine. The authorization key(s) are transferable from the blasting machine(s) to a central command station, each authorization key storing a data package comprising a randomly generated access code generated by its corresponding blasting machine. Transfer of the one or more authorization keys to a central command station allows the data packages (and associated randomly generated access codes) to be transmitted by the central command station for receipt by the blasting machine(s).


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