Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Scott John MacGregor0
Steven McCallum Turnbull0
Date of Patent
September 18, 2007
0Patent Application Number
105039980
Date Filed
February 12, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Material is removed from a body of material, e.g. to create a bore hole, by plasma channel drilling. High voltage, high energy, rapid rise time electrical pulses are delivered many times per second to an electrode assembly in contact with the material body to generate therein elongate plasma channels which expand rapidly following electrical breakdown of the material causing the material to fracture and fragment.
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