US Patent 7267185 Bit retainer system
Patent 7267185 was granted and assigned to Smith International on September, 2007 by the United States Patent and Trademark Office.
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Patent Inventor Names
Lance D. Underwood0
Ronald G. Schmidt0
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Patent abstract
A bit retainer system comprising a casing, a driver sub adapted to be disposed around a shank of a bit, and a bit retainer. The driver sub comprises a threaded connector, a threaded pin end configured to engage with the hammer case, and a stop. The bit retainer comprises a load carrying threaded connector configured to engage with the threaded connector of the driver sub, and a catch thread configured to retain the head of a bit to the system.
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US Patent 07267185 Bit retainer system US Patent 7267185 Bit retainer system
Infobox
Patent Number
072671850
Patent Number
72671850
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Current Assignee
Patent Jurisdiction
Patent Number
072671850
Date of Patent
September 11, 2007
0Patent Application Number
109840190
Date Filed
November 8, 2004
0Official Website
Patent Primary Examiner
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US Patent 07267185 Bit retainer system
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07267185
Date of patent
September 11, 2007
Patent application number
10984019
Date Filed
November 8, 2004
Patent primary examiner
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