Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1992-01-02
1993-02-23
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285 86, 285 92, 285330, F16L 3500
Patent
active
051883988
ABSTRACT:
A redundant locking fluid coupling has a first coupling element including a coupling nut and a second coupling element including an outer ring biased towards the sealing end, such as by a coil spring. The coupling nut and outer ring include circumferential ends that are engaged when the coupling nut is tightened on the second coupling element inner member. Rotation of the coupling nut in a loosening direction is prevented by ratcheting teeth, or, in an alternative embodiment, complimentary sawtooth teeth, in the circumferential surfaces of the coupling nut and outer ring. Loosening of the coupling nut may be accomplished by sides of a wrench engaging a wrench lead in chamfer forcing axial movement of the outer ring to disengage the ratcheting teeth, or in the alternative embodiment, loosening torque being sufficient to overcome the thread torque and the increased frictional force across the complementary sawtooth teeth.
REFERENCES:
patent: 1540374 (1925-06-01), Stevens
patent: 1580694 (1926-04-01), Smith
patent: 1622581 (1927-03-01), Gunkel
patent: 2709093 (1955-05-01), Zeeb
patent: 2745303 (1956-05-01), Cornelius
patent: 2783810 (1957-03-01), Wrigley
patent: 3069187 (1962-12-01), Collins et al.
patent: 3201149 (1965-08-01), Bragg
patent: 3273443 (1966-09-01), Rubin
patent: 3383973 (1968-05-01), Gazal
patent: 3555491 (1971-01-01), Moss
patent: 3929054 (1975-12-01), Gutshall
patent: 4170163 (1979-10-01), Payne
patent: 4434736 (1984-03-01), Szostak et al.
patent: 4609314 (1988-09-01), Metz
patent: 4732343 (1988-03-01), Maruyama
patent: 4784549 (1988-11-01), Wing
patent: 4940260 (1990-07-01), Odriozola
Koss Christopher R.
Parimore, Jr. Thomas N.
Arola Dave W.
General Electric Company
Narciso David L.
Squillaro Jerome C.
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