Pipe joints or couplings – With means blocking release of holding means – Auxiliary latch
Patent
1992-01-27
1994-11-08
Reese, Randolph A.
Pipe joints or couplings
With means blocking release of holding means
Auxiliary latch
285 92, 285315, 285319, 411121, 411221, 411326, F16L 5500
Patent
active
053621107
ABSTRACT:
A new capture device comprising a plurality of axially extending tangs on one of a pair of complementary fittings in a fluid coupling and a polygonal circumferential groove on the other fitting adapted to engage the tangs. Upon rotational engagement of the fittings the tangs engage the polygonal groove and "ratchet" about the junctures between the flats until the coupling is tight. Although not limited to particular materials, the new capture device is particularly suited to very tough, strong and hard materials such as titanium, stainless steel and Inconel alloy because the effectiveness of the capture device is dependent upon the stiffness of the tangs. The new device prevents vibrational disassembly of the complementary fittings without preventing disassembly solely with wrenches. Moreover, the complementary fittings and capture device can be repeatedly assembled and disassembled without any damage to the threads or capture device. A variety of configurations of the capture device are illustrated and applications to a bolt and nut and a hole plug (e.g. turbine engine borescope port) are disclosed.
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Chun Shackelford Heather
Deimen James M.
Moeller Manufacturing Co., Inc.
Reese Randolph A.
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