Rubber seal adaptor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 23, 1994
Grant Date -
N/A
app pub date -
Apr 1, 1992
filing date -
Apr 1, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rubber seal adaptor for a well having a pipe fitting, a compression sleeve about the pipe fitting and rubber seal rings positioned about the pipe fitting so as to be compressed by the compression sleeve. A first circular groove in the bore of the compression sleeve has a conical surface such that there is a shallower portion and a deeper portion. A plurality of circular grooves extend about the periphery of the pipe fitting so as to be adjacent the groove in the compression sleeve. A plurality of steel balls are positioned within the groove in the compression sleeve to interfere with the plurality of grooves for locking the compression sleeve in a compressed condition against the rubber seal rings. The pipe fitting includes threaded ends for receiving a kelly nut and a liner.
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