Abstract: A quick-connect coupling having a tubular tube support, a sleeve and a collet. The tubular tube support includes a tube support portion and a mounting flange joined to the tube support portion. The sleeve includes an inner surface diameter greater than an outer surface diameter of the tube and an outer surface engaging an inner wall of a bore. The collet includes an outer surface engaging the inner surface of the sleeve and an inner surface diameter greater than an outer surface diameter of the tubular tube support and slightly less than the outer surface diameter of the tube. The tube is frictionally retained between the collet and the tubular tube support when the tube is inserted into the coupling.

Abstract: A quick-connect cartridge assembly includes a ring, a collar disposed within the ring, and an annular seal coaxially disposed with respect to the ring and the collar. A plug having a shank with an outer diameter substantially similar to the inner diameter of the collar is slidably received within the collar and is held within the collar by a friction fit. The plug is also received through the annular seal so as to establish a coaxial relationship with the ring, the collar and the annular seal. The plug includes one or more features for facilitating installation of the ring, the collar and the annular seal into a port and subsequent removal of the plug from the components after installation.

Abstract: A crimped fitting for flexible hose wherein the fitting consists of three separate components, namely a nipple, socket and cap, the annular socket being compressed upon the annular cap in a mechanically integral relationship, and the cap being radially compressed upon the tubular nipple. The fitting components are characterized by their economy of manufacture and assembly.