Pipe joints or couplings – With strain relief
Patent
1984-02-15
1987-02-24
Scanlan, Jr., Richard J.
Pipe joints or couplings
With strain relief
285226, 285265, 285301, F16L 1304
Patent
active
046452443
ABSTRACT:
An aircraft duct gimbaled joint is disclosed which permits the ducting to be deflected when high pressure--high temperature gases, vibration and gravitational forces upon take off and during vertical climbs cause substantial expansion and movement. The gimbaled joint comprises two spaced apart end rings, each formed with a pair of perpendicular protruding lobes which are inserted into slots formed in the end face of a center ring. The protruding lobes of the end rings are pivotally connected to the center ring by pivot pins which are doubly supported by the inner and outer walls of the center ring. The lobes of the first end ring are rotated 90 degrees relative to the second end ring providing movement about a vertical and horizontal axis. The rings are sealed by a flexible bellows which fit over and enclose the center ring.
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