US Patent 7665547 Drill bit reservoir with controllable relief pressure
Patent 7665547 was granted and assigned to Smith International on February, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A rotary rock bit includes a lubricant reservoir with a pressure compensation assembly disposed therein. The pressure compensation assembly is adapted to permit selective adjustment of the relief pressure set by the assembly through the selective adjustment of one member in the assembly with respect to another member in the assembly.
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Patent Inventor Names
Carlos Torres0
George B. Witman, IV0
Zhou Yong0
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US Patent 07665547 Drill bit reservoir with controllable relief pressure US Patent 7665547 Drill bit reservoir with controllable relief pressure
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Patent Number
076655470
Patent Number
76655470
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Official Website
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
076655470
Date of Patent
February 23, 2010
0Patent Application Number
116010290
Date Filed
November 17, 2006
0Official Website
Patent Primary Examiner
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US Patent 07665547 Drill bit reservoir with controllable relief pressure
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07665547
Date of patent
February 23, 2010
Patent application number
11601029
Date Filed
November 17, 2006
Patent primary examiner
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