US Patent 7891437 Method for breaking rock
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Patent abstract
The invention relates to a method for breaking rock to be drilled in rock drilling, in which method the rock to be drilled is subjected to successive stress pulses via a tool. The method comprises stress pulses being exerted on the rock at a high frequency, and the load proportion calculated on the basis of the values of the frequency and the length (tp) of the stress wave being at least 0.075.
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US Patent 07891437 Method for breaking rock US Patent 7891437 Method for breaking rock
Infobox
Patent Number
0789143700
Patent Number
789143700
Edits on 27 Mar, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
078914370
Date of Patent
February 22, 2011
0Patent Application Number
116634460
Date Filed
September 23, 2005
0Official Website
Patent Primary Examiner
Edits on 27 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
078914370
Date of Patent
February 22, 2011
0Patent Application Number
116634460
Date Filed
September 23, 2005
0Official Website
Patent Primary Examiner
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US Patent 07891437 Method for breaking rock
Infobox
Is a
Patent jurisdiction
Patent number
07891437
Date of patent
February 22, 2011
Patent application number
11663446
Date Filed
September 23, 2005
Patent primary examiner
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