US Patent 7914006 Drilling tool with elastomer seal having graded properties
Patent 7914006 was granted and assigned to Baker Hughes on March, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A subterranean drill tool has a seal gland formed between a rotating and a static surface. An annular elastomeric seal is located in the gland in engagement with each of the surfaces. A property gradient is formed in at least part of the elastomeric material. The property gradient defines a property that changes from a first level at the surface to a second level in the interior of the seal. The elastomeric material within the property gradient has the same chemical composition as the rest of the seal.
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Patent Inventor Names
Redd H. Smith0
Terry J. Koltermann0
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Official Website
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US Patent 07914006 Drilling tool with elastomer seal having graded properties US Patent 7914006 Drilling tool with elastomer seal having graded properties
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Patent Number
07914006
Patent Number
7914006
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Website URL
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US Patent 07914006 Drilling tool with elastomer seal having graded properties
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Is a
Current assignee
Patent jurisdiction
Patent number
07914006
Date of patent
March 29, 2011
Patent application number
11178120
Date Filed
July 8, 2005
Patent primary examiner
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