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, 2015
Filed:
Feb. 20, 2012
Elmar Muller, Centurion, ZA;
Pieter Stephanus Jacobus Halliday, Randburg, ZA;
Clifford Gordon Morgan, Kempton Park, ZA;
Paul Dastoor, Callaghan, AU;
Warwick Belcher, Callaghan, AU;
Xiaojing Zhou, Callaghan, AU;
Glenn Bryant, Callaghan, AU;
Elmar Muller, Centurion, ZA;
Pieter Stephanus Jacobus Halliday, Randburg, ZA;
Clifford Gordon Morgan, Kempton Park, ZA;
Paul Dastoor, Callaghan, AU;
Warwick Belcher, Callaghan, AU;
Xiaojing Zhou, Callaghan, AU;
Glenn Bryant, Callaghan, AU;
AEL MINING SERVICES LIMITED, Woodmead, Sandton, ZA;
Abstract
An explosives detonator system includes a detonator housing within which is provided a detonation circuit that includes a conductive pathway having a fuse head integrated therewith such that the conductive pathway passes along both electrodes and a resistive bridge of the fuse head. An uncharged chargeable voltage source is also integrated with the detonation circuit and is electrically sensitive to a charging property which is included in a charging signal. Exposure to the charging property charges the voltage source, thereby rendering it capable of generating a potential difference between the electrodes at least to equal the breakdown voltage of the resistive bridge. The charging property is any one or more of a charging light pulse, a charging temperature, a charging pressure and a charging radio frequency.