Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1995-05-03
1996-09-10
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285 38, 285 93, 285308, 285321, 285422, 285921, F16L 3500
Patent
active
055538959
ABSTRACT:
A coupling assembly includes a female member having a receiving end with an axially extending passageway and inwardly facing groove extending outwardly from said passageway in a position spaced from the receiving end. A split metal locking ring is positioned in the groove. A male member is sized to be received in said receiving end and includes a rib having (i) a ramp tapering in a direction away from the forward end and away from the axis at an angle in the range of 10.degree. to 25.degree., (ii) a cylindrical surface parallel to the axis extending rearwardly from the ramp a distance of at least 0.010 and preferably 0.030 inch and (iii) a shoulder tapering away from the forward end and inwardly toward the axis. Upon insertion of the male member into the female member, the split metal ring is expanded as it rides over the ramp, engages the cylindrical surface and retracts to a smaller diameter approaching its original size to engage the shoulder thereby locking the male member into engagement with the female member. A release sleeve is mounted on the male member and is axially movable relative thereto to push the split locking ring up and off of the tapering shoulder to thereby disengage the male member from the female member.
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Aeroquip Aerospace Engineering Bulletin, No. AEB 65, Aeroquip Corporation, 1964.
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Gloden Gregory J.
Karl Terry L.
Myers John T.
Van Riper Philip C.
Zainea John P.
Aeroquip Corporation
Arola Dave W.
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