1
Thomas N Parimore Jr, Christopher R Koss: Redundantly locked fluid coupling. General Electric Company, David L Narciso, Jerome C Squillaro, February 23, 1993: US05188398 (44 worldwide citation)

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 ...


2
Thomas N Parimore Jr, Gerald A Pauley: Biased fluid coupling. General Electric Company, David L Narciso, Jerome C Squillaro, September 6, 1994: US05344195 (34 worldwide citation)

A method and apparatus for achieving a fluid tight seal of a fluid coupling having an axis, wherein a spring interposed between a coupling nut and an inner member of a first coupling element is compressed when the coupling nut is engaged with a second coupling element and rotated in a tightening dir ...