Ratchet and hydraulic seal assembly for rotating hollow shafts
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United States of America Patent
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-
Jun 4, 1985
Grant Date -
N/A
app pub date -
Jun 4, 1982
filing date -
Jun 4, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A power transfer pipe, surrounded by an elastomeric, self lubricating seal assembly, transfers rotational power in one direction from a prime mover, at the upper end of the power transfer pipe, to a threadedly secured, hollow, drill pipe at the lower end, the seal assembly directs fluid from the sleeve into the drill pipe. A ratchet assembly at the upper end of the power transfer pipe, facilitates the disengagement of the power transfer pipe from the drill pipe.
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