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Metal-to-metal sealing system
   
Document Number
US Patent 6926283
Issued Date
August 9, 2005
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Abstract
An annular metal-to-metal sealing system comprises at least one metal member defining an annular sealing surface and an annular seal body which is comprised of a high strength metal material and which is positioned substantially concentrically relative to the annular sealing surface. The seal body has at least one flexible portion which is flexed during assembly to develop a seal activating force, and the metal-to-metal sealing system further comprises at least one annular soft metal sealing insert which is supported by the flexible portion and which is maintained in sealing engagement with the annular sealing surface by the seal activating force.
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Number of Claims:
12
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Published
August 9, 2005
Application Number
10/639,271
Filed
August 12, 2003
US Classification
277/603   277/606 277/607 277/626 277/630 277/650 285/334.2 285/370
Int'l Classification
E21B   33/03   (20060101)   F16L   23/20   (20060101)   F16L   23/00   (20060101)   F16J   15/08   (20060101)   E21B   33/00   (20060101)  
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Parent Case
This application is a continuation of U.S. patent application Ser. No. 10/396,622 filed on Mar. 24, 2003, now U.S. Pat. No. 6,869,080, which is a division of U.S. patent application Ser. No. 09/819,121 filed on Mar. 27, 2001, now U.S. Pat. No. 6,561,521.
USPTO Field of Search
277/602   277/603   277/602   277/603   277/602   277/603   277/630   277/644   277/650   277/653   285/370   285/334.1   285/334.2   285/DIG.17  
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