Pipe joints or couplings – With means blocking release of holding means
Patent
1986-03-20
1987-12-08
Scanlan, Jr., Richard J.
Pipe joints or couplings
With means blocking release of holding means
285305, F16L 5500
Patent
active
047114711
ABSTRACT:
A method and tool for a cutting locking tab 56 of a selected configuration on a joint (a pin (12a) and box (16a) threaded together). The pin has longitudinal slot(s) 24a and the box (16a) has inner and outer peripheral grooves (44,46) forming shear lines (50) to enhance the shearing to form the locking tab (56).
The essential feature is the elimination of clocking, i.e., a predetermination of the relative orientation of the box and pin during manufacture.
REFERENCES:
patent: 2936184 (1960-05-01), Epstein
patent: 3066959 (1962-12-01), White
Milberger Lionel J.
Pallini, Jr. Joseph W.
Dwyer Joseph R.
Scanlan, Jr. Richard J.
Vetco Gray Inc.
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