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:
May. 13, 2008
Filed:
Mar. 26, 2003
Eric Nichol Meyer, Schoemansville, ZA;
Charles Michael Lownds, Rosemount, MN (US);
Eric Nichol Meyer, Schoemansville, ZA;
Charles Michael Lownds, Rosemount, MN (US);
Orica Explosives Technology Pty. Ltd., Victoria, AU;
Abstract
A method of monitoring a feature of a blast such as velocity of detonation (VOD) comprises the steps of providing a detonatorat a blast site. Prior to the blast, a blast control signal pathis utilized to communicate blast control signals to the detonator. During a period following start of the blast, a blast feature signal communication pathcomprising at least part of the blast control signal path is utilized to communicate a blast feature signal relating to the feature to a remote blast feature monitoring station. The blast feature signal is generated by generating a monitoring signal in a conductor arrangementconnected to die detonator, utilizing a sensor outside of the housing of the detonator to sense changes in a blast feature monitoring parameter of the monitoring signal, and transmitting data relating to the changes to the station