End-to-end jointing system for tubes and pipes
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United States of America Patent
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-
Oct 26, 1993
Grant Date -
N/A
app pub date -
Dec 2, 1991
filing date -
Dec 2, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The system is used for connecting sections of plastic tubing which form a sampling pipe for a well, in which a nose of one tube engages a sleeve on the neighboring tube. The system is an improvement to the tangential-key type of tube jointing system, where a flexible key passes through a key-hole in the sleeve, and around the circumference of the key-groove. The now system includes a rectangular key in place of the usual round key. Also shown is an O-ring seal, which resides in a seal-groove cut in the nose, outboard of the key-groove.
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