Seal and seal assembly for a fluid pressure pulse generating tool
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United States of America Patent
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Nov 12, 2019
Grant Date -
Jul 26, 2018
app pub date -
Jan 24, 2018
filing date -
Jan 24, 2017
priority date (Note) -
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Abstract
A seal and seal assembly for a fluid pressure pulse generating tool. The seal comprises an annular seal section comprising an internal sealing surface and an external sealing surface; and an annular heel section. The seal assembly comprises a seal assembly housing with a longitudinally extending bore therethrough for receiving a driveshaft of the tool and the seal enclosed by the seal assembly housing and configured to surround a portion of the driveshaft. The internal sealing surface of the seal is configured to be in sealing contact with the driveshaft and the external sealing surface of the seal is configured to be in sealing contact with an internal surface of the seal assembly housing. The annular heel section of the seal is configured to provide an interference fit with the driveshaft or with the internal surface of the seal assembly housing.
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