Abstract A quick-disconnect coupling which includes a first or fixed coupling assembly having an internal seal intended to receive a tubular tip of a second or removable coupling assembly, and a sliding valve member having a normally closed forward position from which it is forced to an open position by entry of the tip of the removable coupling assembly. The fixed coupling assembly is also provided with a forwardly spaced intermittent internal flange. The removable coupling assembly is provided with a channel to receive the internal flange which is interrupted to permit axial movement of the internal flange onto the second unit whereupon the units may be turned relatively to interlock the flange and channels. A sleeve is axially movable on the second unit and is adapted to occupy a position locking the assemblies against relative rotation and separation.
A quick-disconnect coupling, comprising: a. a first tubular body having an internal circumferentially extending channel adjacent one end, a transverse slot intersecting the internal channel to form diametrically opposed latch elements axially outward from said channel; b. a second tubular body having an insertion tip receivable in the first body, an external circumferentially extending flange, and opposed flat sides interrupting and spaced for reception in the slot in the first body, thereby to place said flange in registry with said channel, said bodies being relatively rotatable to cause interengagement of the interrupted flange and the latch elements; and c. a locking ring slidably but nonrotatably mounted on the second body and including diametrically opposed axially extending locking elements adapted to be received in the slot to secure the flange and latch elements in their interengaged relation.
Claim 2
Dependent Claim
136 words
A quick-disconnect coupling, comprising: a. a first tubular body having an internal circumferentially extending channel adjacent one end, a transverse slot intersecting the internal channel to form diametrically opposed latch elements axially outward from said channel; b. a second tubular body having an insertion tip receivable in the first body, an external circumferentially extending flange, and opposed flat sides interrupting and spaced for reception in the slot in the first body, thereby to place said flange in registry with said channel, said bodies being relatively rotatable to cause interengagement of the interrupted flange and the latch elements; and c. a locking ring slidably but nonrotatably mounted on the second body and including diametrically opposed axially extending locking elements adapted to be received in the slot to secure the flange and latch elements in their interengaged relation.
Claim 3
Dependent Claim
56 words
A quick-disconnect coupling, as defined in claim 1, wherein: a. the first body is provided with an axially slidable valve means adapted to provide communication through the bodies when the insertion tip of the second body is received in the first body, and adapted to seal the first body when the insertion tip is removed therefrom.
Claim 4
Dependent Claim
50 words
A quick-diconnect coupling, as defined in claim 2 wherein: a. the first body is provided with an internal seal ring engageable with said insertion tip; and b. said valve means is provided with an external seal engageable with the bore of the first body when the valve bodies are separated.