Pipe coupling for well casing

Details Pipe coupling for well casing Pipe coupling for well casing

1987-04-07

1988-04-05

Arola, Dave W.

Pipe joints or couplings

Molded joint

Interlocked

285351, 285355, 285422, H16L 1302

Patent

active

047354445

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. O-ring seals are provided to prevent the fluid being pumped from corroding threaded portions of the male and female members. Each member has a shoulder which is abutted by the end of the other member in order to lock the members in rigid relationship.

REFERENCES:
patent: 1218359 (1917-03-01), Beatty
patent: 1993269 (1935-03-01), Fletcher
patent: 2150221 (1939-03-01), Hinderliter
patent: 3495854 (1970-02-01), Fether
patent: 4085951 (1978-04-01), Morris
patent: 4348041 (1982-09-01), Imai
patent: 4366972 (1983-01-01), Franklin
patent: 4564225 (1986-01-01), Taylor

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