V-retainer coupling assembly construction which prevents incorre

Details V-retainer coupling assembly construction which prevents incorre V-retainer coupling assembly construction which prevents incorre

1994-05-19

1995-10-03

Nicholson, Eric K.

Pipe joints or couplings

Packed

Flanged pipe

285410, 285420, 24279, 29225675, F16L 2300

Patent

active

054546060

ABSTRACT:
A coupling assembly includes a first coupling element having first and second ends and a second coupling element having first and second ends. A first structure secures the first end of the first coupling element to the first end of the second coupling element. A second structure secures the second end of the first coupling element to the second end of the second coupling element. The second structure includes a latch pivotally and slidably mounted on the second end of the first coupling element and an eyebolt pivotally secured to the first coupling element second end. A nut is selectively threadable onto a threaded end of the eyebolt. A construction is provided which prevents an incorrect installation of the second end of the second coupling element in relation to the latch. The construction can take several forms including a reduced width slot on the latch or protrusions extending into the slot from at least one of the sides of the slot toward the other side thereof. In conjunction with a suitably sized eyebolt, these constructions prevent enough travel of the latch as to allow for an incorrect fastening in which the second end of the second coupling element is positioned around the eyebolt but outside the latch when the nut is threaded onto the eyebolt.

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AVICA Publication entitled "V-Flange duct joints".
Voss Aerospace Engineering Bulletin No. EB100.
Society of Automotive Engineers, Inc. 1992--Bulletin AS1895/21 (4 pages).
EG&G Pressure Science Inc.--Engineer's Data Book 1988 Drawing No. 30335-1 and FIG. 2: Baulk Tab Preventing Improper Assembly.

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