Abstract

A connector is provided for a tube (8), typically a garden hose, wherein the connector forms part of a component that includes a connector spigot (4) having a flow passage (3) forming the interior of the connector spigot and at least one circumferential ridge (5) on an outer surface of the connector spigot. A union nut (6) is captive by an external flange (12) on the connector spigot. An internal screw thread (7) in the union nut has a diameter that increases from an inner end of the union nut to an, open end which is directed towards the circumferential ridge. When the union nut is screwed onto an outer surface of a tube (8) that covers the circumferential ridge (5), it clamps the tube into sealing engagement with the ridge with the thread of the union nut engaging the outer surface of the tube. The screw thread is preferably bites into the outer surface of the tube.

IPC Classes  ?

• F16L 33/22 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts

Abstract

A tubular coupling comprising a first component (1) having a tubular male spigot (2) with a headed formation (3) on the outside thereof and extending towards one of its ends and a second component (5) has a socket for receiving the headed formation on the tubular male spigot in releasable manner. The second component has a flow passage (6) communicating with the socket generally collinearly with the tubular male spigot in the installed position. A seat (7) is provided in the inner surface of the socket so that it encircles an opening (8) where it communicates with the socket and the tubular male spigot has a resilient seal (9) for sealing an adjacent end of the tubular male spigot to the flow passage. The headed formation and socket are shaped to provide guide surfaces enabling introduction of the headed formation into the socket with the axis of the tubular male spigot extending transverse, typically at right angles, to the axis of a flow passage in the second component. The guide surfaces cooperate such that rotation of the first and second components to bring their axes into substantial alignment causes a seat and seal arrangement to become operative and the headed formation to be held captive relative to the socket. An adapter is provided for integrating the coupling with industry standard fittings.

IPC Classes  ?

• F16L 37/47 - Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of two pipe-end fittings with a tap or cock