Pipe coupling

Details Pipe coupling Pipe coupling

1985-05-02

1986-10-28

Scanlan, Jr., Richard J.

Pipe joints or couplings

Particular interface

Tapered

285333, 285390, F16L 2500

Patent

active

046194720

ABSTRACT:
A pipe coupling includes an inner tubular member cut with an external thread and an outer tubular member cut with an internal thread and posseses a sealing portion where the metal-to-metal contact of conical surfaces establishes a seal. The tip of the sealing portion of the inner tubular member is substantially not in contact with the tip of the outer tubular member. An external peripheral shoulder having an inversely conical surface is provided on the inner tubular member while an internal peripheral shoulder having a conical surface is provided on the outer tubular member. The two peripheral shoulders are firmly engaged with each other.

REFERENCES:
patent: 4009893 (1977-03-01), Ghatton et al.
patent: 4377302 (1983-03-01), Kohyama et al.

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