US Patent 8430628 Pressure balanced low-friction seal
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Patent abstract
A pressure balance seal includes a sealing surface facing an inward radial direction, and a stator interface comprising at least one surface interfacing with a stator. The pressure balance seal further includes a friction reducing feature. The friction reducing feature includes a cavity on the sealing surface. The cavity is configured to receive a fluid such that a normal force acting on the pressure balance seal is counterbalanced by a force generated by a pressure of the fluid.
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Patent Inventor Names
Alexander Kimberley Simpson0
Biao Fang0
Keith Michael Parker0
Norman Arnold Turnquist0
Robbert Christiaan Pannekeet0
Rodrigo Rodriguez Erdmenger0
Xiaoqing Zheng0
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US Patent 08430628 Pressure balanced low-friction seal US Patent 8430628 Pressure balanced low-friction seal
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Patent Number
084306280
Patent Number
84306280
Edits on 24 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
084306280
Date of Patent
April 30, 2013
0Patent Application Number
126308860
Date Filed
December 4, 2009
0Patent Primary Examiner
Edits on 16 Dec, 2021
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US Patent 08430628 Pressure balanced low-friction seal
Infobox
Is a
Patent jurisdiction
Patent number
08430628
Date of patent
April 30, 2013
Patent application number
12630886
Date Filed
December 4, 2009
Patent primary examiner
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