Pipe coupling for well casing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 10, 1990
Grant Date -
N/A
app pub date -
Jun 1, 1989
filing date -
Jun 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pipe coupling for a stainless steel well casing includes a square threaded male member which is received within a square threaded female member so that the coupling is initially loose. A TEFLON seal is provided to retain the fluid being pumped within the pipe. Each member has a shoulder which is abutted by the end of the other member in order to lock the members in rigid relationship once the coupling is completely tightened.
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Family
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Cited Art Landscape
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