High pressure dynamic sealing arrangement
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United States of America Patent
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Dec 19, 2017
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app pub date -
Aug 18, 2016
filing date -
Nov 30, 2009
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Abstract
The invention is a sealing assembly for equipment with movable shafts—such as coaxial and side port swivels, hydraulic swivels, and rotary control devices—that prevents the loss of a high pressure fluid through the clearance existing between a housing and the shaft. The invention is disclosed in the context of a coaxial swivel that conducts high pressure fluid from a stationary first conduit to a rotating second conduit that has dynamic runout, and may be misaligned relative to the first conduit.
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